VoIP over IPsec

Petri Helenius pete at he.iki.fi
Mon Feb 17 23:21:08 UTC 2003


> 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




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