大概的情况就是，有一台在用的USG6100网件，不知道后台密码，因此我们需要想办法修改管理员密码。
首先通过SecureCRT接入Console口连接路由器（执行步骤时，请保持串口用户在线，防止串口用户中途退出。）然后重启路由器，在路由器出现以下提示信息时按Ctrl+B，并输入默认密码O&m15213进入BootROM菜单。
Username: Com Init............................OK Enable L2 ECC.......................OK Enable L2 Index Aliasing............OK Enable L2 Early Fill................OK Measured DDR Clock 533 MHz..........OK DDR Memory Size 4096 MB.............OK DDR Config..........................OK Clear base memory, please wait......OK Test SDRAM data bus ................OK Test SDRAM address bus .............OK Press 'y' or 'Y' to test sdram unit. Test Trap Value.....................OK Clear Low Memory....................OK Init Cache Lib......................OK Init Exception Vector...............OK Init System Hardware................OK Init usrKernel......................OK Enable Icache.......................OK Init System Hardware2...............OK Init System Clock...................OK Init tty............................OK Init ExcTask........................OK Base Bootrom : 202 May 31 2017 17:14:39 CPLD BigVer : 01 CPLD SmlVer : 06 2015-02-10 Boot from : Main area Reset cause : Power on Press Ctrl+A to stop auto boot...... 0 Starting extended bootrom... Test Trap Value.....................OK CPU BIST............................OK Clear High Memory ..................OK Init Cache Lib......................OK Init Exception Vector...............OK Init System Hardware................OK Init usrKernel......................OK Enable Icache.......................OK Enable Dcache.......................OK Init System Hardware2...............OK Init System Clock...................OK Init tty............................OK Init Symbol Table...................OK Init ExcTask........................OK Init Formatted I/O..................OK Checking basic bootrom..............OK CPLD self test......................OK Initialize VFS .....................OK Base Bootrom Ver : 202 May 31 2017 17:14:39 Extended Bootrom Ver : 206 Sep 18 2017 15:58:50 CPLD BigVer : 01 CPLD SmlVer : 06 2015-02-10 PCB Ver : SUE3MPUA REV A BOM Ver : 001 CPU L2 Cache : 2048 KB CPU Core Frequency : 1000 MHz BUS Frequency : 600 MHz Mem Size : 4096 MB Detect EUSB ........................OK Press Ctrl+B to enter main menu... 1 Password: ******** For the sake of security, please modify the original password. ====================< Extend Main Menu >==================== | <1> Boot System | | <2> Set Startup Application Software and Configuration | | <3> File Management Menu... | | <4> Load and Upgrade Menu... | | <5> Modify Bootrom Password | | <6> Reset Factory Configuration | | <0> Reboot | | ---------------------------------------------------------| | Press Ctrl+T to Enter Manufacture Test Menu... | | Press Ctrl+Z to Enter Diagnose Menu... | ============================================================ Enter your choice(0-6):
如果不需要保留防火墙配置，我们可以选择第6项恢复默认值，然后再选第1项确认恢复，再选第1项启动系统即可，这样防火墙就直接重启并恢复默认值了。这里显然是不可行的，因为我们必须保留配置。因此就选择第2项修改启动程序和配置，然后，选择第1项确认修改配置。
====================< Extend Main Menu >==================== | <1> Boot System | | <2> Set Startup Application Software and Configuration | | <3> File Management Menu... | | <4> Load and Upgrade Menu... | | <5> Modify Bootrom Password | | <6> Reset Factory Configuration | | <0> Reboot | | ---------------------------------------------------------| | Press Ctrl+T to Enter Manufacture Test Menu... | | Press Ctrl+Z to Enter Diagnose Menu... | ============================================================ Enter your choice(0-6): 2 Current boot application software: <hda1:/suempua53v500r001c60spc300.bin> Current boot configuration: <hda1:/vrpcfg.zip> <1> Modify setting <0> Quit Enter your choice (0-1): 1 File(s) in hda1: 1:hda1:/suempua53v500r001c60spc300.bin 198235483 bytes 2:hda1:/ltemodemlist.ini 357 bytes 3:hda1:/commands.xml 2963336 bytes 4:hda1:/lic_presis.dat 156 bytes 5:hda1:/webuserinfo.db 2048 bytes 6:hda1:/private-data.txt 704 bytes 7:hda1:/v500r001sph012.pat 1928682 bytes 8:hda1:/$_patchstate_reboot 36 bytes 9:hda1:/$_patch_history 3684 bytes 10:hda1:/snmpnotilog.txt 4 bytes 11:hda1:/vrpcfg.zip 2780 bytes 12:hda1:/trace_info.txt 89744 bytes 13:hda1:/netconf/evm/netopeer-server.out_log.log 268042 bytes 14:hda1:/netconf/evm/openssh.log 16621 bytes 15:hda1:/dbtosql/tosql.db 0 bytes 16:hda1:/loc/ip_base.zip 863601 bytes 17:hda1:/loc/location_new.zip 863601 bytes 18:hda1:/loc/ip_id.csv 3366191 bytes 19:hda1:/loc/id_loc.csv 35425 bytes 20:hda1:/loc/info.txt 100 bytes 21:hda1:/xml/g3at.xml 3531 bytes 22:hda1:/isp/isp_prefile.zip 13480 bytes 23:hda1:/isp/china-educationnet.csv 2356 bytes 24:hda1:/isp/china-mobile.csv 1313 bytes 25:hda1:/isp/china-telecom.csv 50617 bytes 26:hda1:/isp/china-unicom.csv 9831 bytes 27:hda1:/default-sdb/nge-version.zip 1326 bytes 28:hda1:/default-sdb/sa-sdb-ddos.zip 1922320 bytes 29:hda1:/default-sdb/sa-sdb.zip 4099696 bytes 30:hda1:/default-sdb/blockstore 512 bytes 31:hda1:/default-sdb/blockstore_bak 0 bytes 32:hda1:/default-sdb/nge-version.ini 137 bytes 33:hda1:/log/log.dblg 5934141 bytes 34:hda1:/log/log.log 2497774 bytes 35:hda1:/log/2020-06-26.21-00-38.log.zip 926910 bytes 36:hda1:/log/2020-06-27.18-30-22.log.zip 954649 bytes 37:hda1:/log/2020-06-28.16-10-37.log.zip 939917 bytes 38:hda1:/log/2020-06-29.14-15-38.log.zip 943876 bytes 39:hda1:/log/2020-06-30.11-40-38.log.zip 944112 bytes 40:hda1:/log/2020-07-01.09-05-37.log.zip 952828 bytes 41:hda1:/log/2020-07-02.07-15-37.log.zip 940623 bytes 42:hda1:/log/2020-07-03.04-40-37.log.zip 949623 bytes 43:hda1:/log/2020-07-04.02-05-38.log.zip 937884 bytes 44:hda1:/log/2020-07-04.23-45-38.log.zip 939558 bytes 45:hda1:/log/2020-07-05.20-45-27.log.zip 927696 bytes 46:hda1:/log/2020-07-06.17-42-47.log.zip 941353 bytes 47:hda1:/log/2020-07-07.15-29-24.log.zip 949471 bytes 48:hda1:/log/2020-07-08.13-00-37.log.zip 944730 bytes 49:hda1:/log/2020-07-09.10-25-38.log.zip 947247 bytes 50:hda1:/log/2020-07-10.08-30-37.log.zip 945751 bytes 51:hda1:/log/2020-07-11.06-00-38.log.zip 938523 bytes 52:hda1:/log/2020-07-12.04-05-37.log.zip 927655 bytes 53:hda1:/log/2020-07-13.01-30-38.log.zip 938713 bytes 54:hda1:/log/2020-07-13.23-35-19.log.zip 934199 bytes 55:hda1:/log/2020-07-14.21-02-51.log.zip 942546 bytes 56:hda1:/log/2020-07-15.18-29-54.log.zip 943789 bytes 57:hda1:/log/2020-07-16.16-10-37.log.zip 950401 bytes 58:hda1:/log/2020-07-17.14-15-37.log.zip 946876 bytes 59:hda1:/log/2020-07-18.03-45-03.dblg.zip 627865 bytes 60:hda1:/log/2020-07-18.11-40-59.log.zip 935868 bytes 61:hda1:/log/2020-07-19.09-08-44.log.zip 937265 bytes 62:hda1:/log/2020-07-20.07-10-37.log.zip 939917 bytes 63:hda1:/log/2020-07-21.04-40-38.log.zip 936269 bytes 64:hda1:/log/2020-07-22.02-05-39.log.zip 947397 bytes 65:hda1:/log/2020-07-23.00-15-38.log.zip 946815 bytes 66:hda1:/log/2020-07-23.21-40-38.log.zip 955914 bytes 67:hda1:/log/2020-07-24.19-09-13.log.zip 945253 bytes 68:hda1:/log/2020-07-25.16-50-38.log.zip 935587 bytes 69:hda1:/log/2020-07-26.14-51-23.log.zip 945824 bytes 70:hda1:/log/2020-07-27.12-15-39.log.zip 938713 bytes 71:hda1:/log/2020-07-28.09-46-04.log.zip 943467 bytes 72:hda1:/log/2020-07-29.07-45-39.log.zip 948781 bytes 73:hda1:/log/2020-07-30.05-17-17.log.zip 948276 bytes 74:hda1:/log/2020-07-31.03-25-38.log.zip 957887 bytes 75:hda1:/log/2020-08-01.00-50-39.log.zip 939702 bytes 76:hda1:/log/2020-08-01.22-15-39.log.zip 937011 bytes 77:hda1:/log/2020-08-02.20-25-38.log.zip 935278 bytes 78:hda1:/log/2020-08-03.17-50-38.log.zip 955018 bytes 79:hda1:/log/2020-08-04.15-30-38.log.zip 965730 bytes 80:hda1:/log/2020-08-05.13-00-39.log.zip 941822 bytes 81:hda1:/log/2020-08-06.12-25-51.log.zip 945654 bytes 82:hda1:/log/2020-08-07.10-35-50.log.zip 948080 bytes 83:hda1:/log/2020-08-08.09-35-51.log.zip 948517 bytes 84:hda1:/log/2020-08-09.07-35-51.log.zip 941196 bytes 85:hda1:/log/2020-08-10.06-10-51.log.zip 951219 bytes 86:hda1:/log/2020-08-11.04-40-51.log.zip 960411 bytes 87:hda1:/log/2020-08-12.03-20-50.log.zip 954423 bytes 88:hda1:/log/2020-08-13.01-55-51.log.zip 966816 bytes 89:hda1:/log/2020-08-14.00-25-52.log.zip 955859 bytes 90:hda1:/log/2020-08-14.23-05-50.log.zip 950060 bytes 91:hda1:/log/2020-08-15.21-40-51.log.zip 941933 bytes 92:hda1:/log/2020-08-16.20-15-34.log.zip 937290 bytes 93:hda1:/log/2020-08-17.18-47-52.log.zip 943345 bytes 94:hda1:/log/2020-08-18.16-40-50.log.zip 959528 bytes 95:hda1:/log/2020-08-19.15-25-52.log.zip 950020 bytes 96:hda1:/log/2020-08-20.13-58-28.log.zip 960697 bytes 97:hda1:/log/2020-08-21.12-35-52.log.zip 954940 bytes 98:hda1:/log/2020-08-22.11-10-51.log.zip 950430 bytes 99:hda1:/log/2020-08-23.09-45-51.log.zip 949612 bytes 100:hda1:/log/2020-08-24.08-20-51.log.zip 953177 bytes 101:hda1:/log/2020-08-25.06-50-52.log.zip 963809 bytes 102:hda1:/log/2020-08-26.05-30-51.log.zip 944573 bytes 103:hda1:/log/2020-08-27.04-00-51.log.zip 952763 bytes 104:hda1:/log/2020-08-28.02-35-51.log.zip 948855 bytes 105:hda1:/log/2020-08-29.01-10-51.log.zip 948423 bytes 106:hda1:/log/2020-08-29.23-05-51.log.zip 929393 bytes 107:hda1:/log/2020-08-30.22-20-52.log.zip 925864 bytes 108:hda1:/log/2020-09-09.14-34-57.log.zip 883456 bytes 109:hda1:/log/2020-06-05.07-38-46.log.zip 938700 bytes 110:hda1:/log/2020-06-06.05-28-47.log.zip 938370 bytes 111:hda1:/log/2020-06-07.03-33-45.log.zip 943517 bytes 112:hda1:/log/2020-06-08.00-44-43.log.zip 938404 bytes 113:hda1:/log/2020-06-08.23-20-38.log.zip 951602 bytes 114:hda1:/log/2020-06-09.20-15-37.log.zip 939669 bytes 115:hda1:/log/2020-06-10.17-13-26.log.zip 943360 bytes 116:hda1:/log/2020-06-11.13-50-37.log.zip 941190 bytes 117:hda1:/log/2020-06-12.10-52-32.log.zip 942554 bytes 118:hda1:/log/2020-06-13.08-05-37.log.zip 938939 bytes 119:hda1:/log/2020-06-14.05-35-36.log.zip 946833 bytes 120:hda1:/log/2020-06-15.03-03-34.log.zip 944785 bytes 121:hda1:/log/2020-06-16.00-35-37.log.zip 956862 bytes 122:hda1:/log/2020-06-16.22-45-36.log.zip 951759 bytes 123:hda1:/log/2020-06-17.20-19-21.log.zip 938004 bytes 124:hda1:/log/2020-06-18.17-50-37.log.zip 933980 bytes 125:hda1:/log/2020-06-19.15-20-37.log.zip 933701 bytes 126:hda1:/log/2020-06-20.12-51-33.log.zip 935681 bytes 127:hda1:/log/2020-06-21.11-00-36.log.zip 946671 bytes 128:hda1:/log/2020-06-22.08-35-36.log.zip 949651 bytes 129:hda1:/log/2020-06-23.06-05-38.log.zip 946806 bytes 130:hda1:/log/2020-06-24.03-40-42.log.zip 962821 bytes 131:hda1:/log/2020-06-25.01-30-37.log.zip 935853 bytes 132:hda1:/log/2020-06-25.22-59-27.log.zip 939554 bytes 133:hda1:/pki/public/ltemodemlist.ini 357 bytes 134:hda1:/pki/public/ca_config.ini 200 bytes 135:hda1:/pki/public/default_ca.cer 3586 bytes 136:hda1:/pki/public/default_local.cer 1395 bytes 137:hda1:/pki/public/ca.cer 1318 bytes 138:hda1:/pki/public/local.cer 1253 bytes 139:hda1:/hidesshpubkey/ca-budle.crt 3587 bytes 140:hda1:/hidesshpubkey/local.pem 3253 bytes 141:hda1:/conf/vg-private-c10.dat 0 bytes 142:hda1:/logo/&logo&.gif 1616 bytes 143:hda1:/logo/&logo&.ico 1150 bytes 144:hda1:/logo/&logo&.png 3629 bytes 145:hda1:/logo/&title&.txt 7 bytes 146:hda1:/logo/&welcome&.txt 7 bytes 147:hda1:/logo/customtemplate/customtemplate.html 72140 bytes 148:hda1:/logo/customtemplate/homepagetemplate.html 68309 bytes 149:hda1:/logo/icon/vt_default1.png 1646 bytes 150:hda1:/logo/icon/vt_default2.png 4492 bytes 151:hda1:/logo/icon/vt_default3.png 3380 bytes 152:hda1:/logo/icon/vt_default4.png 6945 bytes 153:hda1:/vpnclient/vcversion.ini 165 bytes 154:hda1:/update/version.ini 63 bytes 155:hda1:/update/sa-sdb/update.cfg 636 bytes 156:hda1:/update/sa-sdb/sa_h30071000_2019112100.zip 3996096 bytes 157:hda1:/update/sa-sdb/sa_h30071000_2019111400.zip 4001168 bytes 158:hda1:/update/ip-reputation/update.cfg 636 bytes 159:...te/ip-reputation/iprpu_h10010000_2019112800.zip 7617 bytes 160:...te/ip-reputation/iprpu_h10010000_2019112700.zip 7553 bytes 161:hda1:/update/engine/update.cfg 636 bytes 162:hda1:/gpmbak/version.info 29 bytes 163:hda1:/gpmbak/0_3_-1.sdb 8838224 bytes 164:hda1:/gpmbak/0_1_-1.sdb 5309200 bytes 165:hda1:/gpmbak/0_2_-1.sdb 345392 bytes 166:hda1:/gpmbak/0_4_-1.sdb 50640 bytes 167:hda1:/hidepubkey/ca-budle.crt 1908 bytes 168:hda1:/hidepubkey/local.der 990 bytes 169:hda1:/hidepubkey/local.key 1708 bytes 170:hda1:/hidepkirsakey_n/pki_localcert_rsakey_1.rk 1336 bytes 171:hda1:/hidepkirsakey_n/pki_defaultcert_rsakey_1.rk 1336 bytes 172:hda1:/hidepkirsakey_n/pki_defaultcert_rsakey_2.rk 1336 bytes 173:hda1:/dhcp/dhcp-duid.txt 105 bytes 174:hda1:/umdb/umsystem/usermanage.db 35840 bytes 175:...ackup/running_config/20200911125029.usg6100.zip 2811 bytes 176:...ackup/running_config/20190411225224.usg6100.zip 2598 bytes 177:...ackup/running_config/20190412194218.usg6100.zip 2598 bytes 178:...ackup/running_config/20190413205330.usg6100.zip 2598 bytes 179:...ackup/running_config/20190415212739.usg6100.zip 2600 bytes 180:...ackup/running_config/20190429095944.usg6100.zip 2599 bytes 181:...ackup/running_config/20190430185259.usg6100.zip 2599 bytes 182:...ackup/running_config/20190509165815.usg6100.zip 2598 bytes 183:...ackup/running_config/20190717170015.usg6100.zip 2599 bytes 184:...ackup/running_config/20190809161830.usg6100.zip 2599 bytes 185:...ackup/running_config/20191012184817.usg6100.zip 2599 bytes 186:...ackup/running_config/20191031200522.usg6100.zip 2597 bytes 187:...ackup/running_config/20191106170302.usg6100.zip 2598 bytes 188:...ackup/running_config/20191116183659.usg6100.zip 2598 bytes 189:...ackup/running_config/20191117152803.usg6100.zip 2599 bytes 190:...ackup/running_config/20191118181029.usg6100.zip 2598 bytes 191:...ackup/running_config/20191119115805.usg6100.zip 2599 bytes 192:...ackup/running_config/20191122143227.usg6100.zip 2805 bytes 193:...ackup/running_config/20191122183228.usg6100.zip 2472 bytes 194:...ackup/running_config/20191128115800.usg6100.zip 2134 bytes 195:...ackup/running_config/20191129124940.usg6100.zip 2811 bytes 196:...ackup/running_config/20191203194256.usg6100.zip 2812 bytes 197:...ackup/running_config/20191226112140.usg6100.zip 2811 bytes 198:...ackup/running_config/20200328171445.usg6100.zip 2811 bytes 199:...ackup/running_config/20200405142516.usg6100.zip 2819 bytes 200:...ackup/running_config/20200429133145.usg6100.zip 2811 bytes 201:...ackup/running_config/20200527110908.usg6100.zip 2811 bytes 202:...ackup/running_config/20200608191558.usg6100.zip 2811 bytes 203:...ackup/running_config/20200805180112.usg6100.zip 2812 bytes 204:...ackup/running_config/20200909130018.usg6100.zip 2809 bytes Total size: 1215639552 bytes. Free size: 842739712 bytes. File(s) in hda2: 1:hda2:/app_bak.bin 198235483 bytes Total size: 608862208 bytes. Free size: 410583040 bytes. Input the name of application software(eg: hda1:/sup.bin):
启动程序保持默认，直接按回车即可。然后，在选择启动配置文件处按照提示输入“.”号，直接回车，从默认值启动。
Input the name of application software(eg: hda1:/sup.bin): Input the name of configuration or '.' to clear setting(eg: hda1:/vrpcfg.zip):. Modifed configuration successful. Next boot configuration: NULL
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