Date: Mon, 30 Sep 2002 20:19:00 +0200 From: Andre Oppermann <oppermann@pipeline.ch> To: Luigi Rizzo <rizzo@icir.org> Cc: freebsd-net@FreeBSD.ORG, jeker@n-r-g.com Subject: Re: New natd available Message-ID: <3D989594.DA0D0497@pipeline.ch> References: <3D9861CA.F3225DE7@pipeline.ch> <20020930103617.A4019@iguana.icir.org>
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Luigi Rizzo wrote: > > Andre, > could you briefly comment how the new libalias+natd differ > (or are planned to differ) from the old one -- e.g. do > they implement keepalives, move-to-front of sessions in the > hash chains, fixe to known bugs in the old one ? The new one has a way more powerful configuration syntax and supports new modes like aliasing to more than one outside address. > One common complaint with the old libalias is that > performance tends to trash with time -- this seems to be > due to the very long timeout (24hrs ?) for sessions, coupled > to the fact that newly created sesssions are appended to > the end of the hash chains so over time the lookup times > tend to become larger and larger. This hasn't been fixed yet. > One easy fix to this behaviour is to move to the front of > the hash chain a session descriptor upon a successful lookup. > This keeps fresh sessions near the head of the chain while > stale ones drift towards the end. We'll do this. Could you have a more detailed look at the new natd maybe? -- Andre > thanks > luigi > > > Hello all > > > > In the FreeBSD May-June 2002 Status Report we have announced a natd > > rewrite to make it's configuration options more powerful and support > > more ip addresses to nat to. > > > > The first functional preview is available here: > > > > http://diehard.n-r-g.com/stuff/freebsd/ > > > > Please check this out and test it with real traffic. We'd appreciate > > any feedback about the syntax and any bugs. It'll get some more style > > treatment before declaring it for full public consumption. > > > > Next in row is the tcphostcache in a couple of days. After that the > > new routing table is coming. > > > > -- > > Andre > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-net" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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