i have a scenario like this:-
There are 3 companies A,B and C. The WAN connection is thru ISDN BRI links(1841 routers).Traffic from A has to travel to B and C. When traffic enters form A to B lan source ip of packets should appear as it is. But when traffic is headed for C the source ip address of packets from A have to be hidden. ie depending upon the destination the source ip's have to be as it is or hidden. Is this possible?. Is outside nat the solutoin. Pls help!!
Thanks and regards