Hello Guys....
I needed some help here.....i have attached the topology with this in case you dont get what iam trying to ask
i have just 2 routers connected directly like this...... R1<------------> R2, The network between them is 10.1.12.0/24, R1 has an ip address of
10.1.12.1 & R2 has an ip address of 10.1.12.2.....Well so far so good hmmm
Now the Question is simple i want to block ICMP echo-reply's coming from R1 to R2 simple as that But it only works if i apply an ACL on R2's
Interface in the INBOUND Direction why on earth it dosent work if i apply the ACL on R1's interface in the OUTBOUND direction ???
THE ACL is this one# access-list 100 deny icmp host 10.1.12.1 host 10.1.12.2 echo-reply
access-list 100 permit ip any any
It works if i apply this in the inbound direction of R2 but why dosen't it work if i apply this in the OUTBOUND direction of R1?
Please do help me out thanks :)