Cisco WAN :: C2950 Vlan From Switch To Router For Cable ModemJun 25, 2012
The current setup is as follows: Virginmedia Superhub in modem mode connected to one Cisco C2950 on port fa 0/23. The 2950 is connected to a Cisco C3550 over fa 0/24 via normal Cat 5e.Port fa 0/23 on the 3550 have a Astaro/Sophos UTM connected to it that acts as a Firewall/Wireless controller etc. The hitch, or maybe one of them, is that the 3550 and the UTM is on another floor from the 2950 and cannot be moved. The Virginmedia superhub can't be moved to the other floor either due to limitations in the cabling.What I'd like to achieve is for the UTM to pick up the public IP from the Virginmedia cable modem whilst no other devices on the Lan should be able to connect to the cable modem. All inbound/outbound internet traffic should go through the UTM for security reasons. The UTM have a number of available nic's that can be set to dhcp, static etc. I already have a number of VLANS on the router/switch and have half a suspicion that using another VLAN for this purpose might be the way forward but I'm not sure..