Webster, Andrew wrote:
Qing Li wrote:
I use mpd to greate one VPN between the sites, using Multilink PPP, so
that
data is sent across both links (eitehr round-robon or split packet).
I use MPD's udp transport mode to open two UDP sockets
and send packets from R1 to R4 and from R2 to R3 (in the diagram
below).
MPD will automatically detect if on e link is down and redirect
everything through the remaining link.
Sounds like a good idea, but would that not cause the MTU to get smaller
due to the overhead of a MPPP link?
Windoze hosts have a horrible time with MTU detection!
I think you can now do mtu munging in teh newer mpd
if not you could use the daemon to do it from ports.
I have a private patch that's based on radix_mpath for FreeBSD
5.4.
I believe [EMAIL PROTECTED] is working on a solution.
-- Qing
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:owner-freebsd-
[EMAIL PROTECTED] On Behalf Of Webster, Andrew
Sent: Wednesday, February 08, 2006 10:51 AM
To: [EMAIL PROTECTED]; Ian Lord; freebsd-questions@freebsd.org
Subject: RE: Multiple routes to same destination?
Well, in that case, an ISP wouldn't want to use FreeBSD in their core
routers :( :(
In this particular case, I have redundant links (L1 and L2) between
two
locations
(Loc 1 and Loc 2) with two FreeBSD routers at each location (R1/R2,
and
R3/R4)
which are running OSPF to redistribute routing information between
locations.
Since FreeBSD limits the entries for a particular network to only one
active entry,
the all the traffic for would either go on R1->L1->R4 or R2->L2->R3,
but
not both.
Loc 1___ /---R1--L1--R4---\___ Loc 2
\---R2--L2--R3---/
Andrew
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