Date: Thu, 23 Nov 2000 15:10:42 -0800 From: Julian Elischer <julian@elischer.org> To: Samir Girdhar <samir@cs.toronto.edu> Cc: freebsd-net@freebsd.org Subject: Re: PPPoE, nat, dsl, some web sites Message-ID: <3A1DA3F2.9C02F1B7@elischer.org> References: <00Nov23.162928edt.453134-28539@jane.cs.toronto.edu>
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Samir Girdhar wrote: > > On Wed, 15 Nov 2000 16:59:20 -0500 "Renaud Waldura" wrote: > > Sounds like the infamous PMTU problem. Read this, section 6.3 especially: > > http://renaud.waldura.com/doc/freebsd-pppoe/ > > > > I've been using the NAT capabilities built into ppp(8) and have > had no problems maintaining simultaneous connections to multiple > DSL providers (default route through my ISP, static routes to > the university) -- it properly NATs the traffic going out each > link. > > But with the problems around the PMTU/MSS/broken routers, I've > been looking at tcpmssd as a workaround. > > However, the docs indicate that it needs to work with natd(8) > but, from what I've been reading, it seems to me that natd > can only handle one external interface. It doesn't look like > running a separate instance for each external interface is the > answer, either. > > When I get some time (ie. after LISA) I intend to try a few > different things including: I believe that the tcpmssd port can work with ppp as well. > > - trying to run two natds > - diverting to tcpmssd before passing the packets to ppp > for NAT > - having ipfw/natd/tcpmssd take care of the traffic going > to my ISP and ppp+NAT take care of the traffic on the > link to the university (but then I haven't addressed > the PMTU breakage on this link) > > Anyone have any suggestions? Have I missed something obvious? > Someone must have faced this sort of thing already, no? > > Thanks, > Samir > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-net" in the body of the message -- __--_|\ Julian Elischer / \ julian@elischer.org ( OZ ) World tour 2000 ---> X_.---._/ presently in: Budapest v To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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