SIP and Policy based routing

[mikeatcomtech]

I have configured a 3448 with EFP as a SIP transparent proxy.  This router has two WAN connections and is using PBR to send VLAN1 (Data) to the Cox cable connection and VLAN10 (Voice) to the Windstream T1.  Currently when connecting  laptop to each VLAN the packets follow the correct route to proper ISP. However when looking at the phones registration information in the PBX, all phones still register with the public address from the wrong ISP.  Media-Gateway ip primary is enabled on all interfaces and I cannot figure out why the SIP packets will not follow the PBR.  I have attached the running config, Help!

[ss_daveh]

I've used a similar setup with multiple WAN and LAN connections with a similar result. I ended up getting it operational by separating the WAN policy-classes.

interface eth 0/1

  description  Voice_Primary_Data_Backup

  ip address  x.x.x..169 255.255.255.248

  ip packet-capture 1CAPTURE

  ip mtu 1500

  ip access-policy Public

  media-gateway ip primary

  traffic-shape rate 10M

  max-reserved-bandwidth 95

  qos-policy out VOIP-OUT

  no awcp

  no shutdown

!

!

interface eth 0/2

  description  Data_Primary_Voice_Backup

  ip address  x.x.x.9 255.255.255.248

  ip packet-capture 1CAPTURE

  ip mtu 1500

  ip access-policy Public2

  media-gateway ip primary

  traffic-shape rate 1.5M

  max-reserved-bandwidth 95

  qos-policy out VOIP-OUT

  no awcp

  no shutdown

!

interface vlan 10

ip address  192.168.1.1  255.255.255.0

ip access-policy Private

media-gateway ip primary

no awcp

no shutdown

!

!

interface vlan 20

ip address  192.168.15.1  255.255.255.0

ip access-policy Private2

media-gateway ip primary

no awcp

no shutdown

!

ip policy-class Private

  allow list DEVICE self

  nat source list NAT-ICS interface eth 0/2 overload policy Public2

  nat source list NAT-ICS interface eth 0/1 overload policy Public

!

ip policy-class Private2

  allow list DEVICE self

  nat source list NAT-ICS interface eth 0/1 overload policy Public

  nat source list NAT-ICS interface eth 0/2 overload policy Public2

!

ip policy-class Public

  allow list SSMANG self

  allow list SS-SBC self

!

ip policy-class Public2

  allow list SSMANG self

  allow list SS-SBC self

!

ip route 0.0.0.0 0.0.0.0 x.x.x.174 PING1

ip route 0.0.0.0 0.0.0.0 x.x.x.14 100

ip route x.x.200.0 255.255.248.0 x.x.x.14 PING2

Where the .14 interface is the gateway for the .9 public IP on eth 0/2 and NATs out that interface destined for the x.x.200.0 network. The important part is the Public and Public 2 after the overload statements. I've setup multiple routers using this policy based routing and it's been working perfectly.

Hope this helps