Dear Sir,I know that I can setup ISL trunk between a switch and a router for inter-vlan routing with subinterface on router. However, if I am connecting two routers back to back, can I still setup subinterface with ISL trunk on the link between two ...

Dear SirI have a multicast application which must be run under the same subnet for hosts to communicate.. How can I do that under the following topology (bridging ??). Host A and Host B run the multicast application (but won't work if in different su...

Dear Sir, I would like to know if the following setup worksHost A -- Router A --- Gre Tunnel -- Router B ---- Router C --- Gre Tunnel --- Router D --- Host BFor some reasons, I had to build another GRE tunnel between Router A and Router D (the tunnel...

Dear Sir,I have one Cisco 837 for testing my multicast application. The setup is as followsHost A --- eth1 -- Cisco831 -- eth0 -- Host BBoth host A and B listen to the same multicast group (239.0.1.1) for mutual communication. This means host A send ...

Dear Sir,May I know if I can pass multicast traffic over vpn tunnel(IPSec). I have two sites, each with one 1841. The two sites are connected via IPSec VPN. However, the multicast traffic couldn't pass from site A to site B. please help. (any config...