I have got 3 additional external IPs from my ISP for use with Microsoft Lync Edge. I have put the public DNS & SRV records in place.
I have configure the two NICs on the Edge server, one on the internal network (10.10.10.11 255.255.255.0 with no default gateway) and the other with the 3 external IP addresses on subnet 255.255.255.248 with the router as the gateway.
But how to I tell the cisco 881 to send/map the traffic incoming for sip.domain.com to the edge server as it doesn't have a IP address on the same subnet as the router?
Something like a second VLan?