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CISCO

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cisco 3548-xl 3548에서 vlan 설정시 shutdown이 풀리지 않는다면 다른 vlan ex)vlan 1을 shutdown후 추가된 vlan을 no shutdown 한다면 정상적으로 setting 된다.
Cisco Password Recovery Procedures Cisco Password Recovery Procedures http://www.cisco.com/warp/public/474/ 위의 link를 확인 하시면 Cisco Password Recovery Procedures에 대해 확인 할 수 있습니다. 기본적인 Router 복구 방법 cisco router password recovery 1.configuration register의 값을 알아둔다.(보통 0x2102 or 0x102) 2.router reload 3.전원이 들어온후 Break key(ctrl + break)를 누른후 Enter 4.flash memory에서 부팅 할 경우 : o/r0x42 (confreg 0x42,confreg 0x51) rom에서 부팅할 경우 : o/r0x41 5.cis..
vlan test Switch#vlan database Switch(vlan)#vtp domain bang Changing VTP domain name from test to bang Switch(vlan)#vtp password 1234 Setting device VLAN database password to 1234 Switch(vlan)#^Z Switch#vlan database Switch(vlan)#vtp server (server/client/transparent) Setting device to VTP SERVER mode. Switch#sh vtp status VTP Version : 2 Configuration Revision : 0 Maximum VLANs supported locally : 1005 N..
port mirroring setting port mirroring setting catalyst 2900/3500xl series (config)#interface fa0/10 (config-if)#port monitor fa0/1 (config-if)#port monitor fa0/2 (config-if)#port monitor fa0/3 (config-if)#^z #sh port monitor Catalyst 2950 series (config-if)#monitor session 1 source interface fa3/1 -3 both[tx/rx/both] (config-if)#monitor session 1 destination interface f3/10 (config-if)#no monitor session 1 Catalyst 40..
sh port capabilities 각 포트의 capability(능력)을 보여 주는 명령어 sh port capabilities bang (enable) sh port capabilities 4/25 Model WS-X4148-RJ Port 4/25 Type 10/100BaseTX Speed auto,10,100 Duplex half,full Trunk encap type 802.1Q Trunk mode on,off,desirable,auto,nonegotiate Channel 4/1-48 Flow control no Security yes Dot1x yes Membership static,dynamic Fast start yes QOS scheduling rx-(none),tx-(2q1t) CoS rewrite no ToS rewrit..
switch password recovery IOS switch password recovery 전원 off -> mode 버튼 누름 & 전원 on -> flash_init -> load_helper -> rename(config.text) -> boot -> rename -> 암호 설정 및 저장 CatOS switch password recovery 1.switch를 reboot 시킨다. 2.switch booting 후 cisco systems console라는 메세지가 나온후 Enter Password: 라는 말이 나오면 [Enter] 3.Console> 프롬프트가 나오면 enable mode로 들어 간다. 4.set password,set enablepass를 치고 null 값을 입력 한다..
Cisco ACS upgrade 문제 해결 Q. When I set up authentication, I receive the Chpass is currently disabled. error when I try to authenticate. How do I fix this problem? A. The user account password must be set to change on login. In order to change the password, select System Configuration > Local Password Management > Disable TELNET Change Password against this ACS and return the following message to the users Telnet session..
Telnet 접근제어 Telnet 접근제어 switch(config)#line vty 0 4 switch(config)#password switch switch(config-line)access-class 10 in switch(config)#access-list 10 permit 10.0.0.1 10.0.0.1 ip에 대해서만 telnet Access를 허용하고 다른 ip에서는 허용하지 않는다.