[c-nsp] FWSM IP migration

[Steve Wright]

Hey all,

I'm currently planning an IP migration, and one of the issues I'm going to
hit and I'm not sure of the way around it... traffic coming into new_int
will get translated from 192.168.2.1 -> 10.10.10.1, however as the default
route on the FWSM point out via old_int it won't get passed through as their
will be no existing connection... if I change the default route, that will
work for new connections inbound, but then break the existing outbound
statements...  


192.168.1.0/24           192.168.2.0/24
     |                         |
  Old_int                   new_int
     |                         |
192.168.1.1               192.168.2.1
     +------------+------------+
                 |
             10.10.10.1 (CSM VIP)
               /  \
     10.11.11.1    10.11.11.2 

How would you go about doing this without it being a big hit changeover?

Thanks for any advice/ guidance,