Cisco useful feature and commands

Configure DHCP server on Cisco Router:
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IP dhcp excluded-address 192.168.27.1 192.168.27.50
!
IP DHCP pool Cisco
Network 192.168.27.0 255.255.255.0
Dns-server 192.168.7.20
Domain-name fagorarrasate.net
Default-router 192.168.27.1

Configure HTTP Server:
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IP HTTP Server
Username Cisco privilege password Cisco
IP HTTP Authentication Local
IP http secure-server
IP http timeout-policy idle life 86400 requests 10000

Configure local logon without username and Password/with username and password:
-------------------------------
Line con 0
Exec-timeout 0 0
Login Local
Line vty 0 4
Password Cisco
Login
Transport input All

Crack Username/password for Cisco router:
-------------------------
After router boot up, in 10s, press Fn+ctrl+b or Ctrl+break
Then, Confreg 0x2142
Reset
----------
En
Copy Start-confi running
Config-register 0x2102
No enable Pass
No enable secret
Exit
wr

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Ipaccounting Archive Router Configuration

Archive Router :

http://www.packetu.com/2013/05/07/how-to-automate-cisco-backup-using-configuration-archive/

Archive

Path tftp://10.254.254.10/router/

Write-memory

No file Verify Auto

int g2/0

IP Accounting output-packets

Exit

SH IP Accounting

int g2/0

No IP accounting

Exit

Clear IP Accounting

Http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipapp/configuration/15-s/iap-15-s-book/iap-ipserv.html

router# configureterminal

Router (config) #interface Ethernet 0/5

Router (config-if) #ip accounting mac-address input

Router (config-if) #ip accounting mac-address output

Router (config-if) #ip Accounting Precedence input

Router (config-if) #ip Accounting Precedence output

The followingexample shows how to enable IP accounting with the ability to identify iptraffic that fails IP access lists a nd with the number of transit records Thatwill is stored in the IP Accounting database limited to 100:

router# configureterminal

Router (config) # ipaccounting-transits 100

Router (config) #interface Ethernet 0/5

Router (config-if) #ip accounting output-packets

Router (config-if) #ip accounting access-violations

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Copy Flash the content to TFTP Medium:

Archivetar/create Tftp:1.2.3.4/saved.tar Flash:

https://learningnetwork.cisco.com/thread/10762

Copy tftp to Flash:

Archivetar/xtract Tftp://192.168.3.250/c1200-k9w7-tar.123-8.ja2.tar Flash:

This article is from the "Sulan Network" blog, so be sure to keep this source http://zhangfang526.blog.51cto.com/8588740/1708069

Cisco useful feature and commands