Hello, I am hoping someone might be able to help with a issue I am having. I implemented a Catalyst 3750 Layer 3 switch which connects to 8 other Cisco switches all layer 2. This is in a hub and spoke topology right now. I have VLANs 1,10,20,30,40,50 and all of them route fine, if I am on VLAN 20 I can talk to all other VLANs and this is recursive on all VLANs. The issue is, if I am on VLAN 1 I can receive DNS ping requests from all resources on the network. If I am on another VLAN I can't get requests back. I am able to ping the interface at the IP level but not by name. I have tried entering the IP Name Servers, IP domain-lookup, ip domain name etc...on the 3750 but to no luck. So the question is, how can I get DNS ping requests to route through the VLANs? Thanks for the help!
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Hello, I am working on an ASA 5510 on 8.4 IOS and need to know how to limit icmp to just a single host? What I would like to do is be able to PING from the Inside interface 10.X.X.X to host 22.214.171.124 on the Outside, but thats it no other host would be PINGable. I tried MANY different access-list statements but the only way I can get icmp out and working is using the "fixup protocol icmp" but then everything is PINGable and the ASA does not block anything. Any help would be great!!! Thanks!
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