IPv6 ACL on Telnet

Hi ! Everyone on today we are going to learn about how to configure ipv6 ACL on telnet.

Step 1: Configure ipv6 address on Router

Router>enable

Router#config t

Enter configuration commands, one per line. End with CNTL/Z.

Router(config)#ipv6 unicast-routing

Router(config)#int fa0/0

Router(config-if)#ipv6 add 2000::1/64

Router(config-if)#no shut

Router(config-if)#exit

Router(config)#int fa0/1

Router(config-if)#ipv6 add 2001::1/64

Router(config-if)#no shut

STEP 2: Configure Telnet on Cisco Router.



Router>enable

Router#config t

Enter configuration commands, one per line. End with CNTL/Z.

Router(config)#enable password redhat

Router(config-line)#line vty 0 4

Router(config-line)#password ccna123

Router(config-line)#login

Router(config-line)#




STEP 3:Configure IPv6 ACL on TELNET



Router(config)#line vty 0 4

Router(config-line)#ipv6 access-list CCNP

Router(config-ipv6-acl)#deny ipv6 host 2000::2 any

Router(config-ipv6-acl)#permit ipv6 any any

Router(config-ipv6-acl)#exit




STEP 4: Now Apply the ACL rule created above for TELNET



Router(config)#line vty 0 4

Router(config-line)#ipv6 access-class CCNP in

Router(config-line)#exit

Router(config)#




STEP 5:Now troubleshoot and test your ACL rule.




Test telnet connection by trying to telnet your router machine from different hosts.

Check and find whether the hosts you blocked from telnet are blocked or not.

Also check other hosts which are not blocked from telnet are able to telnet your router.







STEP 6: SEE the ACL rules created.



Router#show ipv6 access-list

IPv6 access list CCNP

deny ipv6 host 2000::2 any (4 match(es))

permit ipv6 any any (1 match(es))
Therefore, we have successfully completed our ipv6 lab session on ACL telnet.