I simply need to see a list of all IPs using a Cisco 2800 series router.  I know I can run a show lldp command on my switches to get a list of attached devices, and I know this is a layer2 command.  Is there any  way to get a list of IPs that are usi...

[I hope I got the right forum area]We use a mitel 3300 PBX for all our VoIP, across mostly procurve equipment, but Cisco too.  All runs great, except at our biggest branch office, which connects via a 100mb metro-E.  The telco hands this metro-E to u...

I am setting up my 2nd 1811 router for NAT and VPN.  The 1st 1811 works great, completed a few months ago.  On this 2nd 1811, I decided to just copy the working startup-config from the good, 1st router to this 2nd, and then change IPs and from there....

I have a router I'm setting up for a branch office.  I got NAT and VPN working.  All good.  DHCP is failing me though.Here's what I added to make the router do DHCP:no ip dhcp use vrf connectedip dhcp excluded-address 172.16.31.1 172.16.31.9!ip dhcp ...

I can ping and NAT is working.  I've built the phase 1 and 2, the ACL several times using access-list and ip access-list extended and double-checked both routers.Other than that, "show crypto isakmp sa" just gives:"IPv4 Crypto ISAKMP SAdst           ...