Mohamed,I had a feeling this might be going on - hense why I asked about the IPSEC.You need to share the tunnel profile using the "tunnel protection IPsec profile shared" commandNote these restrictionsThe              tunnel source  command on all tu...

The closest you can get to switches in GNS3 is NM-16ESW in the 3725 router but still you have a lot of features missing - one of them being VACL

Hi,Your GRE tunnels need to have something unique about them - I assume they must both also have the same destination address as well as source address?The easiest thing you could do would be to use some loopback interfaces.Is there anything else spe...

Is there somewhere convenient you could apply a VACL to filter out multicast traffic from 0000.0c07.ac0a (group 10 mac in your case)?mac access-list extended BLOCK-HSRPpermit 0000.0c07.ac0a anyvlan access-map VACL 10match mac address BLOCK-HSRPaction...