Category Archives: Router

Frame Relay Example

Switch: frame-relay switching ! interface Serial0/0 no ip address encapsulation frame-relay clock rate 2000000 frame-relay intf-type dce frame-relay route 16 interface Serial0/1 160 frame-relay route 18 interface Serial0/2 180 ! interface Serial0/1 no ip address encapsulation frame-relay clock rate 2000000 … Continue reading

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Cisco VPN Site To Site

This is a GNS lab environnement Site A crypto isakmp policy 10 encr 3des authentication pre-share group 2 lifetime 900 crypto isakmp key 2mpi4axiz2i3oopHY3i2os2jysktun7Duei9by4zi address 13.13.13.2 no-xauth ! ! crypto ipsec transform-set SHA-3DES esp-3des esp-sha-hmac ! crypto map cm_adsl 42 … Continue reading

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How to configure ntp server on a Cisco router

First of all set the Router’s clock as accurate as you can , ntp servers don’t like when there is big time difference !!!!Notice we are not in global Config 2821-cisco#clock set 19:00:00 1  april 2011 !!This will config the … Continue reading

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How to add SSH access to a Cisco router

username admin privilege 15 secret mypassword ip domain-name mylab.com crypto key generate rsa !!Press OK or give another value How many bits in the modulus [512]: % Generating 512 bit RSA keys, keys will be non-exportable…[OK] line vty 0 4 … Continue reading

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How to add telnet access to a Cisco router

username admin privilege 15 secret mypassword line vty 0 4 privilege level 15 login local transport input telnet ! This will give full access via Telnet

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How to configure DHCP on Cisco router

ip dhcp excluded-address 192.168.30.240 192.168.30.254 ! !!!give a name for the pool , you may have different pools on the same router ip dhcp pool ipphones !!!indicate the subnet network 192.168.30.0 255.255.255.0 domain-name mylab.com dns-server 192.168.30.254 !!! option 150 for … Continue reading

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