I’ve tried this with google a bit but haven’t managed to find anything conclusive as it’s a bit of an awkward thing to search for…
Is it possible to do both WCCP and PBR on the same Cisco device, with any version of IOS? Specifically for a Cat 4507 switch running sup7-E - currently running IOS 15.1 on it (but we can upgrade IOS if required)?
The reason I ask is because i have an existing WCCP setup to do Riverbed steelhead traffic optimisation (virtual deployment, so i can’t do in-path, has to be other WCCP or PBR). Unfortunately, the need has come up to do policy based routing (at least temporarily) in order to redirect specific traffic (not necessarily HTTP/HTTPS, so WCCP = not going to do it?) through a second internet gateway.
Long term, i’d like to fully cut over service (at least primary) to the new, bigger pipe but there is a significant amount of work involved with that and ideally as step one i’d like to redirect a handful of services out the new pipe on an ad-hoc basis, as that will at least allow me to get a bunch of load off the other pipe. Also, i’ll be able to do a phased transition and deal with smaller amounts of fall-out rather than big bang and hope for the best (in terms of possibly unforeseen issues - like remote third parties only permitting some of our apps from a specific endpoint, etc. - this subnet has been in use for 10+ years).
Initial investigations indicate(d) that PBR and WCCP can’t be run (or rather is not “supported”) on the same device at the same time; however my vendor who is assisting thinks that maybe it might be possible with an updated IOS.
I figure there’s perhaps a few advanced routing/switching Cisco guys on here, does anyone know (i.e., you have deployed it like that or know of a client running it) otherwise?
I’d lab it up but unfortunately i dont have a spare 4500 switch with a Sup7 in it :-\
Right now the plan is to migrate to PBR for the steelhead deployment so i can also use PBR for routing decisions, but if a newer IOS will allow us to do both we can avoid re-configuring all that (and WCCP has its advantages for that use case).