I hope someone can help me with a multihome setup for Call Manager Express.
We have a 2811 as Internet-Gateway, Firewall, VPN and VoIP-System. We use SIP for external phone calls and have a SIP provider.
We got a second Internet link for failover and traffic sharing.
I have a few static routes to send all IP traffic for the SIP provider over the second ISP. The rest goes to the first ISP.
ip route 0.0.0.0 <GW ISP#1> 1
ip route 0.0.0.0 <GW ISP#2> 2
ip route <VoIP Net> <GW ISP#2> 1
ip route <VoIP Net> <GW ISP#1> 2
I also have two pools for NAT. I used bind (voip - sip) to bind the outbound sip traffic to the interface to ISP#2.
I'm looking for PBR, but didn't found the interface were I can configure the policy route-map for the CME.
Each ISP link has its own static IPs. No BGP possible.
Any comments are appreciated.