I think this is a simple issue, but my solution has not worked so far. Here's the scenario:
I have two legacy DNS/WINS servers with IP addresses x.x.x.153 and x.x.x.154. I have two new DNS/WINS servers with IP addresses x.x.x.80 and x.x.x.86. The legacy servers are about to be shut down (all four servers belong to the same subnet). Even though our network admins have been notified of this change, I know there are still many servers in the environment which are still pointing to the legacy DNS/WINS servers. What I want to do is figure out, after the legacy servers have been shut down, which boxes are still attempting to send packets to x.x.x.153 and x.x.x.154.
Extended IP access list 102
permit tcp any host x.x.x.153
permit udp any host 1x.x.x.153
permit ip any host x.x.x.153
permit icmp any host x.x.x.153
IP packet debugging is on (detailed) for access list 102
However, when I run NSLOOKUP (on a machine on a different subnet) and point it to x.x.x.153 and perform a query, I don't see these packets on my screen. What am I missing?
On the subnet where the machine was it is not there to answer arps so no IP packets are ever forwarded to it. however, it seems like the input side of the router that faces your test host would pick up the packets and log them. Do you have console logging on?
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.