I am having 3550 switch with vlan3 and vlan5.In vlan3 I have a dhcp server which gives ip add to all the pc's in vlan3 and vlan 5 using ip helper address in vlan5.every thing is working fine. Now I want to block icmp in vlan 5.I tried using access list, it was blocked but my DHCP is not working.
Ip accesslist extened 101
Deny icmp any any
Permit ip any 172.16.5.2(dhcp ip)
Please help me .I want to block icmp in vlan5 and dhcp should also workâ¦