[c-nsp] IOS firewall on 7500 vip -- not supported??

[Joe Maimon]

Hello All,

I have just been emailed from TAC concerning an ongoing issue where 
H.323 inspection in 12.3 T series causes router crashes and in the 
message was this gem.

"
I'm from the Architecture team, so I don't have significant expertise in
Security. I've been told the IOS Firewall feature is not supported on VIP's.
"

Does anyone quite know what this means? I have seen it working fine.

Thanks,

Joe