More specifically, dynamic routing protocols like ospf and rip. -----Original Message----- From: Petri Helenius [mailto:[EMAIL PROTECTED]] Sent: Monday, February 17, 2003 5:21 PM To: Iljitsch van Beijnum; Steve Feldman Cc: [EMAIL PROTECTED] Subject: Re: VoIP over IPsec
> 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