WCCP inside VRF

Question

Hi Team,
I have one issue with WCCP redirection inside VRF. Here is my scenario:
PE router config (MPLS edge)
ip vrf aaa
rd 10:1
route-target both 10:1
int facing CE router
ip vrf forwarding aaa
ip address x.x.x.x x.x.x.x
mpls bgp forwarding
router bgp 10
<classic MP-BGP config>
address-family vpnv4 vrf aaa
  neighbor <CE router> remote-as 100
  neighbor <CE router> activate
  neighbor <CE router> send-label
CE router (using VRF lite)
ip vrf aaa
rd 100:1
route-target both 100:1
ip wccp vrf aaa 61
ip wccp vrf aaa 62
int facing PE router
ip vrf forwarding aaa
ip address c.c.c.c c.c.c.c
ip wccp vrf aaa 62 redirect in
ip bgp mpls forwarding
int facing WAAS
ip vrf forwarding aaa
ip address w.w.w.w w.w.w.w
int LAN
ip vrf forwarding aaa
ip address l.l.l.l l.l.l.l
ip wccp vrf aaa 61 redirect in
router bgp 100
address-family vpnv4 vrf aaa
neighbor <PE router> remote-as 10
neighbor <PE router> activate
neighbor <PE router> send-label
<classic network advertising>
WAE config is classis WCCP with hash assignment and negotiated GRE return method. CE router does not have any issues detecting WAE appliance.
Now the mentioned issue:
Traffic from LAN to PE is being redirected OK. No issues here. But return traffic from PE router is not redirected to WAE appliance despite the fact that WCCP "redirect in" command is configured under CE WAN interface. When I remove "neighbor <CE router> send-label" command under "
address-family vpnv4 vrf aaa" on PE router, CE router starts to redirect traffic from PE to WAE appliance (but I loose label information on CE). When I configure this command back, redirection stops.
So my question is why this command is causing CE router not to redirect traffic from PE to LAN on its WAN interface? I was not able to find any restrictions regarding VRF lite and WCCP. I am using 15.2(3)T1 IOS version.
Many thanks for any inputs.
Regards,
Stan

Answer 1

hi Stan,
I´m not really into VRF troubleshooting but you should check this info;
If a Cisco WAAS NME-WAE network module or Cisco WAE appliance is used at a branch location and the service provider cannot strip off the labels, WCCP can be used with a route-leaking option as long as there are no overlapping IP addresses. ( that sounds like your design)
look for  WCCP Deployment
http://www.cisco.com/en/US/prod/collateral/contnetw/ps5680/ps6870/white_paper_C11-560131.pdf
good luck!