路由固件的逆向解包及破解方法

来源:互联网 发布:四川软件行业协会 编辑:程序博客网 时间:2024/06/05 17:11

前言

路由器的固件通常存储在FLASH中,对其固件的分析可以获取其中的各种信息,比如得到root用户的登陆权限,查看系统的日志,系统分区及系统的各类配置文件等。

对此固件的分析意义重大,这里主要说明一下通常对固件分析的技术上的方式和使用技巧。

固件分析所需要的环境:

1、常见路由器的SPI FLASH编程器;

2、最好是用Winows 笔记本来登陆到ubuntu系统的台式机上的方式 ;

3、Windows 下的Putty、winhex、WinSCP软件工具;

4、TTL线、网线、万用表及烙铁,热风枪等工具和线材;


分析步骤:

1、拆开对应的路由器设备的外壳;

2、查看路由器内部的的接口标识;

3、用万用表找到对应的地线GND标号;

4、通常为了调试或升级的方便,都会保留TTL引脚;

查看是否存在有TTL线的引脚或触点;

5、用准备好的TTL线连接路由器的TTL引脚或触点;

6、windows下用putty中的串口项打开对应的TTL线连接的串口;

7、查看是否有路由器启动的日志信息,如果有,请仔细分析;

8、等路由信息启动完毕后,看看是否有终端跳出来,是否有登陆窗口跳出;

9、如果有登陆窗口,但是无法输入,或者无法猜测出对应的用户名密码;

10、用热风枪或烙铁取下路由器上的存储FLASH芯片;

11、在Windows下用编程器提前存储在FLASH芯片的全部固件;

12、用WinSCP工具将提取出的固件上传到ubuntu系统中;

13、在ubuntu系统中安装对应的固件分析工具(firmware-mod-kit、binwalk、lzma、squashfs-tools等);

14、用这些分析工具进行分析,分析出来后,解压对应的数据包,提前对应的关键性数据进行分析;

到此步骤已经全部写出来了。

实例如下:

具体的在ubuntu系统中的操作流程如下:

这里以一款不知道哪家的路由器为例子,此家的路由器分AC和86型的AP采购进来,之前对此厂家的信息一无所知。

1、首先分析设备:

AC:

拆开此款AC,能够看到一个MT7621A的主控芯片及对应的256M的BGA的DDR和华邦的32M FLASH存储。

并看到一个4pin的间隙为2.0的TTL线的位置。

AP:

拆开此款的86型AP设备,应一个主控为MT7620N的主控芯片,16M的Ztel的DDR和华邦的4M FLASH存储。

此款的TTL线在板子的背面,而且屏蔽了kernel的启动信息,所以这里就没有此系统的启动过程。

2、查看启动信息:

下面的是AC设备接上TTL线能够看到对应的启动信息,具体如下:

===================================================================                MT7621   stage1 code Mar 12 2015 14:43:30 (ASIC)                CPU=500000000 HZ BUS=166666666 HZ==================================================================Change MPLL source from XTAL to CR...do MEMPLL setting..MEMPLL Config : 0x411000003PLL mode + External loopback=== XTAL-40Mhz === DDR-400Mhz ===PLL3 FB_DL: 0xd, 1/0 = 542/482 35000000PLL4 FB_DL: 0xe, 1/0 = 586/438 39000000PLL2 FB_DL: 0x15, 1/0 = 579/445 55000000do DDR setting..[01F40000]Apply DDR3 Setting...(use customer AC)          0    8   16   24   32   40   48   56   64   72   80   88   96  104  11                                                                                        2  120      --------------------------------------------------------------------------                                                                                        ------0000:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    00001:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    00002:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    00003:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    00004:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    00005:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    00006:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    00007:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    00008:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    00009:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    0000A:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    0000B:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    0000C:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    0000D:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    0000E:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    0000F:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            1    10010:|    1    1    1    1    1    1    1    1    1    1    1    1    1    1                                                                                            1    10011:|    1    1    1    1    1    1    1    1    1    1    1    1    1    0                                                                                            0    00012:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    00013:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    00014:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    00015:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    00016:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    00017:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    00018:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    00019:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    0001A:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    0001B:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    0001C:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    0001D:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    0001E:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    0001F:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                            0    0DRAMC_DQSCTL1[0e0]=14000000DRAMC_DQSGCTL[124]=80000000rank 0 coarse = 16rank 0 fine = 64B:|    0    0    0    0    0    0    0    0    0    1    1    1    0    0    0                                                                                            0opt_dle value:10DRAMC_DDR2CTL[07c]=C287222DDRAMC_PADCTL4[0e4]=000022B3DRAMC_DQIDLY1[210]=0B0A090ADRAMC_DQIDLY2[214]=07090909DRAMC_DQIDLY3[218]=0B080A06DRAMC_DQIDLY4[21c]=0A070B07DRAMC_R0DELDLY[018]=00004040==================================================================                RX      DQS perbit delay software calibration==================================================================1.0-15 bit dq delay value==================================================================bit|     0  1  2  3  4  5  6  7  8  9--------------------------------------0 |    10 9 10 11 9 9 9 7 6 1010 |    8 11 7 11 7 10--------------------------------------==================================================================2.dqs windowx=pass dqs delay value (min~max)centery=0-7bit DQ of every groupinput delay:DQS0 =64 DQS1 = 64==================================================================bit     DQS0     bit      DQS10  (1~127)64  8  (1~127)641  (1~127)64  9  (2~127)642  (1~127)64  10  (1~127)643  (1~127)64  11  (1~127)644  (2~127)64  12  (1~127)645  (1~127)64  13  (1~127)646  (1~127)64  14  (1~127)647  (1~127)64  15  (1~127)64==================================================================3.dq delay value last==================================================================bit|    0  1  2  3  4  5  6  7  8   9--------------------------------------0 |    10 9 10 11 9 9 9 7 6 1010 |    8 11 7 11 7 10====================================================================================================================================     TX  perbyte calibration==================================================================DQS loop = 15, cmp_err_1 = ffff0000dqs_perbyte_dly.last_dqsdly_pass[0]=15,  finish count=1dqs_perbyte_dly.last_dqsdly_pass[1]=15,  finish count=2DQ loop=15, cmp_err_1 = ffff0000dqs_perbyte_dly.last_dqdly_pass[0]=15,  finish count=1dqs_perbyte_dly.last_dqdly_pass[1]=15,  finish count=2byte:0, (DQS,DQ)=(8,8)byte:1, (DQS,DQ)=(8,8)DRAMC_DQODLY1[200]=88888888DRAMC_DQODLY2[204]=8888888820,data:88[EMI] DRAMC calibration passed===================================================================                MT7621   stage1 code done                CPU=500000000 HZ BUS=166666666 HZ===================================================================U-Boot 1.1.3 (Jun 27 2016 - 10:37:27)Board: Ralink APSoC DRAM:  256 MBrelocate_code Pointer at: 8ffb8000Config XHCI 40M PLLflash manufacture id: ef, device id 40 18find flash: W25Q128BV*** Warning - bad CRC, using default environment============================================Ralink UBoot Version: 4.3.0.0--------------------------------------------ASIC MT7621A DualCore (MAC to MT7530 Mode)DRAM_CONF_FROM: Auto-DetectionDRAM_TYPE: DDR3DRAM bus: 16 bitXtal Mode=3 OCP Ratio=1/3Flash component: SPI FlashDate:Jun 27 2016  Time:10:37:27============================================icache: sets:256, ways:4, linesz:32 ,total:32768dcache: sets:256, ways:4, linesz:32 ,total:32768 ##### The CPU freq = 880 MHZ #### estimate memory size =256 Mbytes#Reset_MT7530set LAN/WAN WLLLLPlease choose the operation:   1: Load system code to SDRAM via TFTP.   2: Load system code then write to Flash via TFTP.   3: Boot system code via Flash (default).   4: Entr boot command line interface.   7: Load Boot Loader code then write to Flash via Serial.   9: Load Boot Loader code then write to Flash via TFTP.default: 3                                                                                                                                                            03: System Boot system code via Flash.## Booting image at bc050000 ...   Image Name:   Linux Kernel Image   Image Type:   MIPS Linux Kernel Image (lzma compressed)   Data Size:    6157391 Bytes =  5.9 MB   Load Address: 80001000   Entry Point:  803559d0   Verifying Checksum ... OK   Uncompressing Kernel Image ... OKNo initrd## Transferring control to Linux (at address 803559d0) ...## Giving linux memsize in MB, 256Starting kernel ...LINUX started... THIS IS ASICLinux version 3.10.14 (root@Erick) (gcc version 4.6.3 (Buildroot 2012.11.1) ) #450 SMP Wed Jul 6 17:56:27 CST 2016 The CPU feqenuce set to 880 MHzGCMP presentCPU0 revision is: 0001992f (MIPS 1004Kc)Software DMA cache coherencyDetermined physical RAM map: memory: 10000000 @ 00000000 (usable)Initrd not found or empty - disabling initrdZone ranges:  Normal   [mem 0x00000000-0x0fffffff]  HighMem  emptyMovable zone start for each nodeEarly memory node ranges  node   0: [mem 0x00000000-0x0fffffff]Detected 3 available secondary CPU(s)Primary instruction cache 32kB, 4-way, VIPT, linesize 32 bytes.Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytesMIPS secondary cache 256kB, 8-way, linesize 32 bytes.PERCPU: Embedded 7 pages/cpu @81203000 s6720 r8192 d13760 u32768Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 65024Kernel command line: console=ttyS1,57600n8 root=/dev/ram0 console=ttyS1,57600 root=/dev/ram0 rootfstype=squashfs,jffs2PID hash table entries: 1024 (order: 0, 4096 bytes)Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)Writing ErrCtl register=0001e103Readback ErrCtl register=0001e103Memory: 249948k/262144k available (3443k kernel code, 12196k reserved, 1654k data, 4432k init, 0k highmem)Hierarchical RCU implementation.NR_IRQS:128console [ttyS1] enabledCalibrating delay loop... 580.60 BogoMIPS (lpj=1161216)pid_max: default: 32768 minimum: 301Mount-cache hash table entries: 512Performance counters: mips/1004K PMU enabled, 2 32-bit counters available to each CPU, irq -1 (share with timer interrupt)launch: starting cpu1launch: cpu1 gone!CPU1 revision is: 0001992f (MIPS 1004Kc)Primary instruction cache 32kB, 4-way, VIPT, linesize 32 bytes.Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytesMIPS secondary cache 256kB, 8-way, linesize 32 bytes.Synchronize counters for CPU 1: done.launch: starting cpu2launch: cpu2 gone!CPU2 revision is: 0001992f (MIPS 1004Kc)Primary instruction cache 32kB, 4-way, VIPT, linesize 32 bytes.Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytesMIPS secondary cache 256kB, 8-way, linesize 32 bytes.Synchronize counters for CPU 2: done.launch: starting cpu3launch: cpu3 gone!CPU3 revision is: 0001992f (MIPS 1004Kc)Primary instruction cache 32kB, 4-way, VIPT, linesize 32 bytes.Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytesMIPS secondary cache 256kB, 8-way, linesize 32 bytes.Synchronize counters for CPU 3: done.Brought up 4 CPUsdevtmpfs: initializedNET: Registered protocol family 16bio: create slab <bio-0> at 0SCSI subsystem initializedSwitching to clocksource MIPSNET: Registered protocol family 2TCP established hash table entries: 2048 (order: 2, 16384 bytes)TCP bind hash table entries: 2048 (order: 2, 16384 bytes)TCP: Hash tables configured (established 2048 bind 2048)TCP: reno registeredUDP hash table entries: 256 (order: 1, 8192 bytes)UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)NET: Registered protocol family 14 CPUs re-calibrate udelay(lpj = 1167360)squashfs: version 4.0 (2009/01/31) Phillip LougherNTFS driver 2.1.30 [Flags: R/W DEBUG].jffs2: version 2.2. (NAND) (SUMMARY)  (ZLIB) (RTIME) (c) 2001-2006 Red Hat, Inc.fuse init (API version 7.22)io scheduler noop registered (default)Serial: 8250/16550 driver, 2 ports, IRQ sharing disabledserial8250: ttyS0 at MMIO 0x1e000d00 (irq = 27) is a 16550Aserial8250: ttyS1 at MMIO 0x1e000c00 (irq = 26) is a 16550ARalink gpio driver initializedbrd: module loadedloop: module loadedflash manufacture id: ef, device id 40 18W25Q128BV(ef 40180000) (16384 Kbytes)mtd .name = raspi, .size = 0x01000000 (16M) .erasesize = 0x00010000 (64K) .numeraseregions = 0Creating 6 MTD partitions on "raspi":0x000000000000-0x000000030000 : "Bootloader"0x000000030000-0x000000040000 : "Config"0x000000040000-0x000000050000 : "Factory"0x000000050000-0x000000800000 : "Kernel"0x000000800000-0x000001000000 : "DataBase"0x000000000000-0x000001000000 : "ALL"PPP generic driver version 2.4.2PPP BSD Compression module registeredPPP MPPE Compression module registeredNET: Registered protocol family 24PPTP driver version 0.8.5rdm_major = 253netif_napi_add() called with weight 128 on device eth2GMAC1_MAC_ADRH -- : 0x000078d3GMAC1_MAC_ADRL -- : 0x8dddbebcRalink APSoC Ethernet Driver Initilization. v3.1  1024 rx/tx descriptors allocated, mtu = 1500!NAPI enable, Tx Ring = 1024, Rx Ring = 1024GMAC1_MAC_ADRH -- : 0x000078d3GMAC1_MAC_ADRL -- : 0x8dddbebcPROC INIT OK!Ralink APSoC Hardware Watchdog TimerNetfilter messages via NETLINK v0.30.nf_conntrack version 0.5.0 (3905 buckets, 15620 max)ipt_domain 0.0.4 : Platinum, http://platinum.cublog.cn/xt_time: kernel timezone is -0000gre: GRE over IPv4 demultiplexor driverip_tables: (C) 2000-2006 Netfilter Core TeamType=LinuxTCP: cubic registeredNET: Registered protocol family 17l2tp_core: L2TP core driver, V2.0l2tp_ppp: PPPoL2TP kernel driver, V2.08021q: 802.1Q VLAN Support v1.8Warning: unable to open an initial console.Freeing unused kernel memory: 4432K (804fc000 - 80950000)Algorithmics/MIPS FPU Emulator v1.5jffs2: notice: (120) jffs2_build_xattr_subsystem:  xref (0 dead, 0 orphan) found.78:FFFFFFD3:FFFFFF8D:FFFFFFDD:FFFFFFBE:FFFFFFBCRaeth v3.1 (NAPI)phy_tx_ring = 0x0c678000, tx_ring = 0xac678000phy_rx_ring0 = 0x0c67c000, rx_ring0 = 0xac67c000MT7530 Reset Completed!!change HW-TRAP to 0x15c8fset LAN/WAN LLLLWGMAC1_MAC_ADRH -- : 0x000078d3GMAC1_MAC_ADRL -- : 0x8dddbebcGDMA2_MAC_ADRH -- : 0x000078d3GDMA2_MAC_ADRL -- : 0x8dddbebdeth3: ===> VirtualIF_openCDMA_CSG_CFG = 81000000GDMA1_FWD_CFG = 20710000GDMA2_FWD_CFG = 20710000device eth2 entered promiscuous modeeth3: ===> VirtualIF_opendevice eth3 entered promiscuous modebr0: port 2(eth3) entered forwarding statebr0: port 2(eth3) entered forwarding statebr0: port 1(eth2) entered forwarding statebr0: port 1(eth2) entered forwarding stateMTK MSDC device init.msdc0 -> ================ <- msdc_set_mclk() : L<686> PID<insmod><0x198>msdc0 -> !!! Set<400KHz> Source<50000KHz> -> sclk<390KHz> <- msdc_set_mclk() : L<687> PID<insmod><0x198>msdc0 -> ================ <- msdc_set_mclk() : L<688> PID<insmod><0x198>msdc0 -> ops_get_cd return<1> <- msdc_ops_get_cd() : L<2317> PID<kworker/u8:0><0x6>mtk-sd: MediaTek MT6575 MSDC Drivermmc0: mmc_rescan_try_freq: trying to init card at 400000 Hzmsdc0 -> XXX MSDC_INT_SDIOIRQ <- msdc_irq() : L<2393>msdc0 -> XXX CMD<52> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<52> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<8> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<5> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<5> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<5> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<5> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<55> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<55> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<55> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<55> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<1> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> set mclk to 0!!! <- msdc_set_mclk() : L<634> PID<kworker/u8:0><0x6>mmc0: mmc_rescan_try_freq: trying to init card at 300000 Hzmsdc0 -> set mclk to 0!!! <- msdc_set_mclk() : L<634> PID<kworker/u8:0><0x6>msdc0 -> ================ <- msdc_set_mclk() : L<686> PID<kworker/u8:0><0x6>msdc0 -> !!! Set<300KHz> Source<50000KHz> -> sclk<297KHz> <- msdc_set_mclk() : L<687> PID<kworker/u8:0><0x6>msdc0 -> ================ <- msdc_set_mclk() : L<688> PID<kworker/u8:0><0x6>msdc0 -> XXX CMD<52> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<52> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<8> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<5> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<5> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<5> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<5> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<55> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<55> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<55> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<55> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<1> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> set mclk to 0!!! <- msdc_set_mclk() : L<634> PID<kworker/u8:0><0x6>mmc0: mmc_rescan_try_freq: trying to init card at 260000 Hzmsdc0 -> set mclk to 0!!! <- msdc_set_mclk() : L<634> PID<kworker/u8:0><0x6>msdc0 -> ================ <- msdc_set_mclk() : L<686> PID<kworker/u8:0><0x6>msdc0 -> !!! Set<260KHz> Source<50000KHz> -> sclk<255KHz> <- msdc_set_mclk() : L<687> PID<kworker/u8:0><0x6>msdc0 -> ================ <- msdc_set_mclk() : L<688> PID<kworker/u8:0><0x6>msdc0 -> XXX CMD<52> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<52> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<8> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<5> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<5> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<5> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<5> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<55> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<55> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<55> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<55> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> XXX CMD<1> MSDC_INT_CMDTMO <- msdc_irq() : L<2461>msdc0 -> set mclk to 0!!! <- msdc_set_mclk() : L<634> PID<kworker/u8:0><0x6>Started WatchDog Timer.br0: port 2(eth3) entered forwarding statebr0: port 1(eth2) entered forwarding stateAC1000 login: 


后面有破解出来的密码,用用户名,密码就可以直接登录进入系统了。。

用户名:admin
密码:a1sev5y7c39k


PW300 login: admin
Password: a1sev5y7c39k

3、获取关键性数据:

最后能看到提示符:

AC1000 login:

看到提示符很是欣喜!

但是TTL的输入好像被软件或硬件上给做了屏蔽,此时通过键盘进行输入,失落。。。。

不过从上面的启动信息上,可以看出对应的硬件配置了,flash的分区表也有了。

配置的关键性数据:


mtd分区表的结构:

flash manufacture id: ef, device id 40 18W25Q128BV(ef 40180000) (16384 Kbytes)mtd .name = raspi, .size = 0x01000000 (16M) .erasesize = 0x00010000 (64K) .numeraseregions = 0Creating 6 MTD partitions on "raspi":0x000000000000-0x000000030000 : "Bootloader"0x000000030000-0x000000040000 : "Config"0x000000040000-0x000000050000 : "Factory"0x000000050000-0x000000800000 : "Kernel"0x000000800000-0x000001000000 : "DataBase"0x000000000000-0x000001000000 : "ALL"

对硬件有了基本上的了解,但是无法进行输入,所以也就无法进入下去了,只有拆卸Flash了。

4、无法输入或不知密码后的,拆卸FLASH后的分析步骤:

热风枪吹下来后,将其放置在编程器上读取32Mflash的数据,并将其通过WinSCP上传到ubuntu系统中进行查看;

root@dell-180:/home/leekwen/ac1000# binwalk 7621A-ac1000.bin -vScan Time:     2016-12-09 16:32:31Target File:   /home/leekwen/ac1000/7621A-ac1000.binMD5 Checksum:  a4b523383795fa8af2680b29b67604f1Signatures:    374DECIMAL       HEXADECIMAL     DESCRIPTION--------------------------------------------------------------------------------71368         0x116C8         U-Boot version string, "U-Boot 1.1.3 (Jun 27 2016 - 10:37:27)"327680        0x50000         uImage header, header size: 64 bytes, header CRC: 0xCEF2FB2F, created: 2016-07-06 09:56:37, image size: 6157391 bytes, Data Address: 0x80001000, Entry Point: 0x803559D0, data CRC: 0x4AB990B5, OS: Linux, CPU: MIPS, image type: OS Kernel Image, compression type: lzma, image name: "Linux Kernel Image"327744        0x50040         LZMA compressed data, properties: 0x5D, dictionary size: 33554432 bytes, uncompressed size: 9701952 bytes3675222       0x381456        MPEG transport stream data8388608       0x800000        JFFS2 filesystem, little endian
用binwalk工具查看固件的头文件,看到上面的结果。

此时可以通过windows的winhex提取对应位置上的分区信息,中重要的是rootfs数据。

此时看到的是0x800000位置后的数据为JFFS2的分区数据。

提取后,进行解包即可。但是此时如果结果的数据是CPIO压缩的,建议还是解压到本地目录,否则会覆盖到你的X86的文件系统中,导致你的X86的ubuntu系统崩溃。


此篇文章的主要说明trips:

这里需要说明以下几点:

1、首先用binwalk进行头的分析,然后提取对应的头数据,并在系统中挂载对应的分区;

2、CPIO数据格式的文件,解压时需要注意不要直接解压到X86系统目录,否则会导致X86 ubuntu系统的崩溃;

3、如果是固件只开启的Telnetd服务,系统中也没有curl,nc,wget命令的话,那么传输数据的时候,就只能通过tftp命令了;

4、固件系统的挂载,需要指定对应的格式,mtd分区的挂载需要注意下,与传统的ntfs,fat,ext,LVM等分区的挂载不同;

实例:

mtd分区的挂载:root@leekwen:/home/leekwen/ac1000/ac_bin# modprobe mtdram total_size=32768 erase_size=64root@leekwen:/home/leekwen/ac1000/ac_bin# modprobe mtdblockroot@leekwen:/home/leekwen/ac1000/ac_bin# dd if=conf of=/dev/mtdblock0root@leekwen:/home/leekwen/ac1000/ac_bin# mount -t jffs2 /dev/mtdblock0 /mnt

5、如果固件中的busybox版本比较低,而且命令不全的话,可以去下载对应cpu架构支持的busybox 静态文件,通过tftp上传上去,赋予执行权限后即可使用了。

此MT7621A所用的busybox为busybox-mipsel版本,非busybox-mipse版本的。


经研究发现,7620N 模块中的telnetd服务开启;
端口:23
用户名:admin
密码:a1sev5y7c39k


PW300 login: admin
Password:  a1sev5y7c39k


所以就可以直接用admin及密码登陆了。


开启Win7端的TFTPD服务后,使用tftp命令上传及下载如下实例:

86型AP的架构如下:

# cat /proc/cpuinfosystem type             : Ralink SoCprocessor               : 0cpu model               : MIPS 24Kc V5.0BogoMIPS                : 386.04wait instruction        : yesmicrosecond timers      : yestlb_entries             : 32extra interrupt vector  : yeshardware watchpoint     : yes, count: 4, address/irw mask: [0x0ff8, 0x0ff8, 0x0bdb, 0x0ff8]ASEs implemented        : mips16 dspshadow register sets    : 1core                    : 0VCED exceptions         : not availableVCEI exceptions         : not available
下载busybox-mipsel,并放置在tftpd服务器的根目录下,然后在嵌入式系统中运行下面的命令:
# tftp -g -r busybox-mipsel 192.168.1.127busybox-mipsel       100% |*******************************|  1539k  0:00:00 ETA# ./busybox-mipselBusyBox v1.21.1 (2013-07-08 11:09:23 CDT) multi-call binary.BusyBox is copyrighted by many authors between 1998-2012.Licensed under GPLv2. See source distribution for detailedcopyright notices.Usage: busybox [function [arguments]...]   or: busybox --list[-full]   or: busybox --install [-s] [DIR]   or: function [arguments]...        BusyBox is a multi-call binary that combines many common Unix        utilities into a single executable.  Most people will create a        link to busybox for each function they wish to use and BusyBox        will act like whatever it was invoked as.

原来的嵌入式系统中没有的命令,可以通过如下的命令进行创建:

# cp busybox-mipsel /bin/# ln -s /bin/busybox-mipsel /bin/netstat# netstat -alnActive Internet connections (servers and established)Proto Recv-Q Send-Q Local Address           Foreign Address         Statetcp        0      0 0.0.0.0:8080            0.0.0.0:*               LISTENtcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTENtcp        0      0 0.0.0.0:23              0.0.0.0:*               LISTENtcp        0    139 192.168.1.181:23        192.168.1.127:27602     ESTABLISHEDnetstat: /proc/net/tcp6: No such file or directoryudp        0      0 0.0.0.0:9090            0.0.0.0:*udp        0      0 0.0.0.0:63638           0.0.0.0:*udp        0      0 0.0.0.0:162             0.0.0.0:*udp        0      0 0.0.0.0:69              0.0.0.0:*netstat: /proc/net/udp6: No such file or directorynetstat: /proc/net/raw6: No such file or directoryActive UNIX domain sockets (servers and established)Proto RefCnt Flags       Type       State         I-Node Path

将嵌入式系统中的mtd固件分区打包后,上传到windows中的命令如下:

导出固件:# fdisk -lDisk /dev/mtdblock0: 0 MB, 196608 bytes255 heads, 63 sectors/track, 0 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesDisk /dev/mtdblock0 doesn't contain a valid partition tableDisk /dev/mtdblock1: 0 MB, 65536 bytes255 heads, 63 sectors/track, 0 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesDisk /dev/mtdblock1 doesn't contain a valid partition tableDisk /dev/mtdblock2: 0 MB, 65536 bytes255 heads, 63 sectors/track, 0 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesDisk /dev/mtdblock2 doesn't contain a valid partition tableDisk /dev/mtdblock3: 8 MB, 8060928 bytes255 heads, 63 sectors/track, 0 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesDisk /dev/mtdblock3 doesn't contain a valid partition tableDisk /dev/mtdblock4: 8 MB, 8388608 bytes255 heads, 63 sectors/track, 1 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesDisk /dev/mtdblock4 doesn't contain a valid partition tableDisk /dev/mtdblock5: 16 MB, 16777216 bytes255 heads, 63 sectors/track, 2 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesDisk /dev/mtdblock5 doesn't contain a valid partition table# cat /proc/mtddev:    size   erasesize  namemtd0: 00030000 00010000 "Bootloader"mtd1: 00010000 00010000 "Config"mtd2: 00010000 00010000 "Factory"mtd3: 007b0000 00010000 "Kernel"mtd4: 00800000 00010000 "DataBase"mtd5: 01000000 00010000 "ALL"# dd if=/dev/mtdblock3 of=block3-sh: dd: not found# ln -s /bin/busybox-mipsel /bin/dd# dd if=/dev/mtdblock3 of=block315744+0 records in15744+0 records out8060928 bytes (7.7MB) copied, 3.758830 seconds, 2.0MB/s# dd if=/dev/mtdblock4 of=block416384+0 records in16384+0 records out8388608 bytes (8.0MB) copied, 3.925839 seconds, 2.0MB/s# dd if=/dev/mtdblock5 of=block532768+0 records in32768+0 records out16777216 bytes (16.0MB) copied, 7.893829 seconds, 2.0MB/s# busybox-mipsel ls -lhtotal 32448-rw-r--r--    1 admin    admin       7.7M Jan  1 00:23 block3-rw-r--r--    1 admin    admin       8.0M Jan  1 00:24 block4-rw-r--r--    1 admin    admin      16.0M Jan  1 00:24 block5ubuntu分析提取的mtd块数据:leekwen@leekwen:~/ac1000/mtd$ ls -lhtotal 32448-rw-r--r--    1 leekwen  leekwen     7.7M Dec 13 01:33 block3-rw-r--r--    1 leekwen  leekwen     8.0M Dec 13 01:34 block4-rw-r--r--    1 leekwen  leekwen    16.0M Dec 13 01:35 block5leekwen@leekwen:~/ac1000/mtd$ binwalk block3 -vScan Time:     2016-12-13 09:41:53Target File:   /home/leekwen/ac1000/mtd/block3MD5 Checksum:  2930b8f9eacd024c8137de1f36ada2a0Signatures:    374DECIMAL       HEXADECIMAL     DESCRIPTION--------------------------------------------------------------------------------0             0x0             uImage header, header size: 64 bytes, header CRC:0xCEF2FB2F, created: 2016-07-06 09:56:37, image size: 6157391 bytes, Data Address: 0x80001000, Entry Point: 0x803559D0, data CRC: 0x4AB990B5,OS: Linux, CPU: MIPS, image type: OS Kernel Image, compression type: lzma, image name: "Linux Kernel Image"64            0x40            LZMA compressed data, properties: 0x5D, dictionary size: 33554432 bytes, uncompressed size: 9701952 bytes3347542       0x331456        MPEG transport stream dataleekwen@leekwen:~/ac1000/mtd$ binwalk block4 -vScan Time:     2016-12-13 09:42:12Target File:   /home/leekwen/ac1000/mtd/block4MD5 Checksum:  b9250ddca6f75eb200820e8eb12ef0feSignatures:    374DECIMAL       HEXADECIMAL     DESCRIPTION--------------------------------------------------------------------------------0             0x0             JFFS2 filesystem, little endianleekwen@leekwen:~/ac1000/mtd$ binwalk block5 -vScan Time:     2016-12-13 09:42:20Target File:   /home/leekwen/ac1000/mtd/block5MD5 Checksum:  0279c45881de84827d4eddb780b6cc24Signatures:    374DECIMAL  HEXADECIMAL   DESCRIPTION--------------------------------------------------------------------------------71368     0x116C8    U-Boot version string, "U-Boot 1.1.3 (Jun 27 2016 - 10:37:27)"327680    0x50000    uImage header, header size: 64 bytes, header CRC: 0xCEF2FB2F, created: 2016-07-06 09:56:37,                          image size: 6157391 bytes, Data Address: 0x80001000, Entry Point: 0x803559D0, data CRC: 0x4AB990B5,          OS: Linux, CPU: MIPS, image type: OS Kernel Image, compression type: lzma, image name: "Linux Kernel Image"327744    0x50040    LZMA compressed data, properties: 0x5D, dictionary size: 33554432 bytes, uncompressed size: 9701952 bytes3675222   0x381456   MPEG transport stream data8388608   0x800000   JFFS2 filesystem, little endian嵌入式系统中执行上传命令,将打包的mtd分区包上传到windows的tftpd服务器中:# tftp -p -r mtd.tar.gz 192.168.1.127mtd.tar.gz           100% |*****************************************|  3910k  0:00:00 ETA#

6、入门级的就写到这里了,其它的就看自己的linux命令用的如何了。。。


7、其AC与下面的AP通讯用的是SNMP:

日志如下:

通过snmpd进程进行通信通信日志:NET-SNMP version 5.6.2 restartedReceived SNMP packet(s) from UDP: [192.168.200.1]:62604->[192.168.200.96]:161  GET message    -- iso.3.6.1.4.1.33980.100.1.1.1.1.18.1Received SNMP packet(s) from UDP: [192.168.200.1]:32450->[192.168.200.96]:161  GET message    -- iso.3.6.1.4.1.33980.100.1.1.1.1.18.1Received SNMP packet(s) from UDP: [192.168.200.1]:15380->[192.168.200.96]:161  GET message    -- iso.3.6.1.4.1.33980.100.1.3.1.0Received SNMP packet(s) from UDP: [192.168.200.1]:15195->[192.168.200.96]:161  GET message    -- iso.3.6.1.4.1.33980.100.1.1.1.1.59.1Received SNMP packet(s) from UDP: [192.168.200.1]:45220->[192.168.200.96]:161  GET message    -- iso.3.6.1.4.1.33980.100.1.1.1.1.60.1Received SNMP packet(s) from UDP: [192.168.200.1]:15945->[192.168.200.96]:161  GET message    -- iso.3.6.1.4.1.33980.100.1.1.1.1.61.1Received SNMP packet(s) from UDP: [192.168.200.1]:2043->[192.168.200.96]:161  GET message    -- iso.3.6.1.4.1.33980.100.1.1.1.1.40.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.15.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.16.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.17.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.29.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.30.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.18.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.13.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.20.1    -- iso.3.6.1.4.1.33980.100.1.3.1.0    -- iso.3.6.1.4.1.33980.100.1.1.1.1.19.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.10.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.12.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.55.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.56.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.57.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.4.1    -- iso.3.6.1.4.1.33980.100.1.3.3.1.5.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.26.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.28.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.29.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.22.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.13.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.23.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.24.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.36.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.15.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.40.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.41.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.21.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.10.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.11.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.31.1Received SNMP packet(s) from UDP: [192.168.200.1]:63905->[192.168.200.96]:161  GET message    -- iso.3.6.1.4.1.33980.100.1.3.3.1.3.1    -- iso.3.6.1.4.1.33980.100.1.3.3.1.3.2    -- iso.3.6.1.4.1.33980.100.1.3.3.1.3.3    -- iso.3.6.1.4.1.33980.100.1.3.3.1.3.4    -- iso.3.6.1.4.1.33980.100.1.3.3.1.4.1    -- iso.3.6.1.4.1.33980.100.1.3.3.1.4.2    -- iso.3.6.1.4.1.33980.100.1.3.3.1.4.3    -- iso.3.6.1.4.1.33980.100.1.3.3.1.4.4    -- iso.3.6.1.4.1.33980.100.1.3.3.1.2.1    -- iso.3.6.1.4.1.33980.100.1.3.3.1.2.2    -- iso.3.6.1.4.1.33980.100.1.3.3.1.2.3    -- iso.3.6.1.4.1.33980.100.1.3.3.1.2.4    -- iso.3.6.1.4.1.33980.100.1.3.3.1.10.1    -- iso.3.6.1.4.1.33980.100.1.3.3.1.10.2    -- iso.3.6.1.4.1.33980.100.1.3.3.1.10.3    -- iso.3.6.1.4.1.33980.100.1.3.3.1.10.4    -- iso.3.6.1.4.1.33980.100.1.3.2.1.3.1    -- iso.3.6.1.4.1.33980.100.1.3.2.1.3.2    -- iso.3.6.1.4.1.33980.100.1.3.2.1.3.3    -- iso.3.6.1.4.1.33980.100.1.3.2.1.3.4    -- iso.3.6.1.4.1.33980.100.1.3.3.1.7.1    -- iso.3.6.1.4.1.33980.100.1.3.3.1.7.2    -- iso.3.6.1.4.1.33980.100.1.3.3.1.7.3    -- iso.3.6.1.4.1.33980.100.1.3.3.1.7.4    -- iso.3.6.1.4.1.33980.100.1.3.3.1.8.1    -- iso.3.6.1.4.1.33980.100.1.3.3.1.8.2    -- iso.3.6.1.4.1.33980.100.1.3.3.1.8.3    -- iso.3.6.1.4.1.33980.100.1.3.3.1.8.4    -- iso.3.6.1.4.1.33980.100.1.3.3.1.9.1    -- iso.3.6.1.4.1.33980.100.1.3.3.1.9.2    -- iso.3.6.1.4.1.33980.100.1.3.3.1.9.3    -- iso.3.6.1.4.1.33980.100.1.3.3.1.9.4    -- iso.3.6.1.4.1.33980.100.1.4.1.1.3.1    -- iso.3.6.1.4.1.33980.100.1.4.1.1.3.2    -- iso.3.6.1.4.1.33980.100.1.4.1.1.3.3    -- iso.3.6.1.4.1.33980.100.1.4.1.1.3.4    -- iso.3.6.1.4.1.33980.100.1.4.1.1.2.1    -- iso.3.6.1.4.1.33980.100.1.4.1.1.2.2    -- iso.3.6.1.4.1.33980.100.1.4.1.1.2.3    -- iso.3.6.1.4.1.33980.100.1.4.1.1.2.4    -- iso.3.6.1.4.1.33980.100.1.4.2.1.3.1    -- iso.3.6.1.4.1.33980.100.1.4.2.1.3.2    -- iso.3.6.1.4.1.33980.100.1.4.2.1.3.3    -- iso.3.6.1.4.1.33980.100.1.4.2.1.3.4    -- iso.3.6.1.4.1.33980.100.1.4.2.1.2.1    -- iso.3.6.1.4.1.33980.100.1.4.2.1.2.2    -- iso.3.6.1.4.1.33980.100.1.4.2.1.2.3    -- iso.3.6.1.4.1.33980.100.1.4.2.1.2.4Received SNMP packet(s) from UDP: [192.168.200.1]:16330->[192.168.200.96]:161  GET message    -- iso.3.6.1.4.1.33980.100.1.1.1.1.18.1Received SNMP packet(s) from UDP: [192.168.200.1]:33809->[192.168.200.96]:161  SET message    -- iso.3.6.1.4.1.33980.100.1.1.1.1.61.1urging address from address cache: UDP: [192.168.200.1]:33809->[192.168.200.96]:161Received SNMP packet(s) from UDP: [192.168.200.1]:62614->[192.168.200.96]:161  GET message    -- iso.3.6.1.4.1.33980.100.1.3.1.0Purging address from address cache: UDP: [192.168.200.1]:24740->[192.168.200.96]:161Received SNMP packet(s) from UDP: [192.168.200.1]:45882->[192.168.200.96]:161  GET message    -- iso.3.6.1.4.1.33980.100.1.1.1.1.59.1Purging address from address cache: UDP: [192.168.200.1]:22828->[192.168.200.96]:161Received SNMP packet(s) from UDP: [192.168.200.1]:7701->[192.168.200.96]:161  GET message    -- iso.3.6.1.4.1.33980.100.1.1.1.1.60.1Purging address from address cache: UDP: [192.168.200.1]:40545->[192.168.200.96]:161Received SNMP packet(s) from UDP: [192.168.200.1]:60496->[192.168.200.96]:161  GET message    -- iso.3.6.1.4.1.33980.100.1.1.1.1.61.1Purging address from address cache: UDP: [192.168.200.1]:16535->[192.168.200.96]:161Received SNMP packet(s) from UDP: [192.168.200.1]:26281->[192.168.200.96]:161  GET message    -- iso.3.6.1.4.1.33980.100.1.1.1.1.40.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.15.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.16.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.17.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.29.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.30.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.18.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.13.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.20.1    -- iso.3.6.1.4.1.33980.100.1.3.1.0    -- iso.3.6.1.4.1.33980.100.1.1.1.1.19.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.10.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.12.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.55.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.56.1    -- iso.3.6.1.4.1.33980.100.1.1.1.1.57.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.4.1    -- iso.3.6.1.4.1.33980.100.1.3.3.1.5.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.26.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.28.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.29.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.22.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.13.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.23.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.24.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.36.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.15.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.40.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.41.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.21.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.10.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.11.1    -- iso.3.6.1.4.1.33980.100.1.2.3.1.31.1Purging address from address cache: UDP: [192.168.200.1]:64805->[192.168.200.96]:161Received SNMP packet(s) from UDP: [192.168.200.1]:47345->[192.168.200.96]:161  GET message    -- iso.3.6.1.4.1.33980.100.1.3.3.1.3.1    -- iso.3.6.1.4.1.33980.100.1.3.3.1.3.2    -- iso.3.6.1.4.1.33980.100.1.3.3.1.3.3    -- iso.3.6.1.4.1.33980.100.1.3.3.1.3.4    -- iso.3.6.1.4.1.33980.100.1.3.3.1.4.1    -- iso.3.6.1.4.1.33980.100.1.3.3.1.4.2    -- iso.3.6.1.4.1.33980.100.1.3.3.1.4.3    -- iso.3.6.1.4.1.33980.100.1.3.3.1.4.4    -- iso.3.6.1.4.1.33980.100.1.3.3.1.2.1    -- iso.3.6.1.4.1.33980.100.1.3.3.1.2.2    -- iso.3.6.1.4.1.33980.100.1.3.3.1.2.3    -- iso.3.6.1.4.1.33980.100.1.3.3.1.2.4    -- iso.3.6.1.4.1.33980.100.1.3.3.1.10.1    -- iso.3.6.1.4.1.33980.100.1.3.3.1.10.2    -- iso.3.6.1.4.1.33980.100.1.3.3.1.10.3    -- iso.3.6.1.4.1.33980.100.1.3.3.1.10.4    -- iso.3.6.1.4.1.33980.100.1.3.2.1.3.1    -- iso.3.6.1.4.1.33980.100.1.3.2.1.3.2    -- iso.3.6.1.4.1.33980.100.1.3.2.1.3.3    -- iso.3.6.1.4.1.33980.100.1.3.2.1.3.4    -- iso.3.6.1.4.1.33980.100.1.3.3.1.7.1    -- iso.3.6.1.4.1.33980.100.1.3.3.1.7.2    -- iso.3.6.1.4.1.33980.100.1.3.3.1.7.3    -- iso.3.6.1.4.1.33980.100.1.3.3.1.7.4    -- iso.3.6.1.4.1.33980.100.1.3.3.1.8.1    -- iso.3.6.1.4.1.33980.100.1.3.3.1.8.2    -- iso.3.6.1.4.1.33980.100.1.3.3.1.8.3    -- iso.3.6.1.4.1.33980.100.1.3.3.1.8.4    -- iso.3.6.1.4.1.33980.100.1.3.3.1.9.1    -- iso.3.6.1.4.1.33980.100.1.3.3.1.9.2    -- iso.3.6.1.4.1.33980.100.1.3.3.1.9.3    -- iso.3.6.1.4.1.33980.100.1.3.3.1.9.4    -- iso.3.6.1.4.1.33980.100.1.4.1.1.3.1    -- iso.3.6.1.4.1.33980.100.1.4.1.1.3.2    -- iso.3.6.1.4.1.33980.100.1.4.1.1.3.3    -- iso.3.6.1.4.1.33980.100.1.4.1.1.3.4    -- iso.3.6.1.4.1.33980.100.1.4.1.1.2.1    -- iso.3.6.1.4.1.33980.100.1.4.1.1.2.2    -- iso.3.6.1.4.1.33980.100.1.4.1.1.2.3    -- iso.3.6.1.4.1.33980.100.1.4.1.1.2.4    -- iso.3.6.1.4.1.33980.100.1.4.2.1.3.1    -- iso.3.6.1.4.1.33980.100.1.4.2.1.3.2    -- iso.3.6.1.4.1.33980.100.1.4.2.1.3.3    -- iso.3.6.1.4.1.33980.100.1.4.2.1.3.4    -- iso.3.6.1.4.1.33980.100.1.4.2.1.2.1    -- iso.3.6.1.4.1.33980.100.1.4.2.1.2.2    -- iso.3.6.1.4.1.33980.100.1.4.2.1.2.3    -- iso.3.6.1.4.1.33980.100.1.4.2.1.2.4

上面为自己的一些实际操作过程,以此备份,防止自己遗忘了。。~

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