> On Mon, 17 Feb 2003, Steve Feldman wrote: > > > through the corporate enterprise net, Cisco routers with IPSEC/GRE tunnels > > over the public Internet. > > Maybe a stupid question... why would you need GRE tunneling while IPsec > has a tunnel mode of its own? > Probably because a major router vendor, despite of repeated customer requests, declined to implement routing across such tunnel mode.
Pete