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Harald Welte laforge at gnumonks.orgHi Keith,
On Thu, Aug 23, 2018 at 12:47:38PM +0200, Keith wrote:
> To try to bring this back on topic for the list, I still have the
> question of whether the GGSN /could/ in fact provide the correct p-t-p
> address?
A GTP tunnel is *not* a point-to-point link, and hence it technically doesn't
have a point-to-point address. This is a mismatch between IETF/PPP and 3GPP
architecture.
The point is that a GGSN is not seen as a router, but merely a tunnel entry point,
transporting user packet data such as IP.
The actual GGSN implementation may be implemented as a router, but that's then
an implementation detail and nothing in the 3GPP design.
So I think it would be illogical if the GGSN would advertise a point-to-point
address, if it isn't a point-to-point link :)
--
- Harald Welte <laforge at gnumonks.org> http://laforge.gnumonks.org/
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