Dual WAN on NV3140

[jkesting]

We have a customer where we have a NV3140 deployed as an SBC which they use for their SIP Trunk.  On the NV3140, we are using a dual WAN setup so that in case the WAN on GE 0/1 fails, it will auto rollover to the WAN link on GE 0/2.  

Recently, the customer changed their provider on GE 0/1.  We modified the configuration for the new provider (essentially it was just a matte of changing the static IP and route).  Everything works except, we are no longer able to ping or access the unit on GE 0/2 unless interface GE 0/1 is down.  Prior to the change, we were able to ping and access the NV3140 via either interface while both interfaces were up and in service.

Any thoughts as to what may have broke this?

[jkesting]

Attached is the relevant portion of the NV3140 config that has been scrubbed:

probe FAILOVER icmp-echo
destination <SIP Trunk Destination>
source-address <GE 0/1 IP address>
period 5
tolerance consecutive fail 3 pass 3
no shutdown
!
track FAILOVER
test if probe FAILOVER
no shutdown
!
!
!
!
!
!
!
!
!
!
!
!
!
interface gigabit-eth 0/1
description WAN1_PROVIDER
ip address <GE 0/1 IP Address>
ip access-policy Public
no shutdown
media-gateway ip primary
!
!
interface gigabit-eth 0/2
description WAN2_PROVIDER
ip address <GE 0/2 IP Address>
ip access-policy Public
no shutdown
media-gateway ip primary
!
!
interface gigabit-eth 0/3
description PBX
ip address 192.168.43.2 255.255.255.0
ip access-policy Private
no shutdown
media-gateway ip primary
!
!
!
!
route-map FAILOVER permit 1
description "FAILOVER"
match ip address FAILOVER
set ip next-hop <WAN1 DEFAULT GATEWAY>