situation: having 3 locations, [p1] and [p2] periferal [branch office] with cisco805 and [c] central [headq] with cisco1721 all three locations are connected to internet having two vpn tunnels over it, on the way p1-c and p2-c accordingly, location [p1] may talk to central [c] and [p2] to [c], but periferals can't talk to each other, since there is no vpn tunnel spanning them. all three locations have their subnets [10.1.x.x, 10.2.x.x, 10.3.x.x] set.
question: is it possible to configure central router [at c] to "forward" traffic from branch [p1] to branch [p2], thus allowing both periferals to efectively communicate with each other? so idea is to allow that forwarding, instead of creating new direct vpn tunnel between branches [p1] and [p2].
i suppose that is easy to configure branch router [p1] to direct all traffice [both headq and other branch] toward headq interface, but i am afraid problem is in headq router. it needs to receive traffic from one vpn tunnel [from branch p1], and immidiatelly forward it into second vpn tunnel [toward branch p2]
somebody told me that in case of such vpn tunnel forwarding, some packet drop [loss] may occur?
any advice? thnx