Date: Tue, 23 Sep 1997 09:06:44 +0930 From: Greg Lehey <grog@lemis.com> To: Joe Beiter <jwb@xioa.cosmic.org> Cc: questions@FreeBSD.ORG Subject: Re: SLIP and MTU Message-ID: <19970923090644.15840@lemis.com> In-Reply-To: <199709221323.JAA02814@xioa.cosmic.org>; from Joe Beiter on Mon, Sep 22, 1997 at 09:23:06AM -0400 References: <199709221323.JAA02814@xioa.cosmic.org>
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On Mon, Sep 22, 1997 at 09:23:06AM -0400, Joe Beiter wrote: > > I began tracking a problem with sendmail getting "collect: I/O error blah blah" > The sendmail FAQ cited MTU incompatibilities between myself and my ISP. My > ISP told me my mtu should be set to 1536, which I set on my dip command line. That's a strange MTU for SLIP. Even 552 is high. > However, when I do an "ifconfig sl0", it says my mtu is 552 and will not > let me manually set it to 1536 from the command line claiming it is an > illegal argument. Probably it's not compiled to take such a high MTU. > Can anyone enlighten me on what is happening here? > > p.s. Don't bother telling me to use PPP. The version of code on the Bay > routers my ISP is using does not like FreeBSD's PPP. Why not? > Neither Bay nor the FreeBSD development group are concerned so that > is why I'm stuck using slip. I can't speak for Bay, but I know that Brian Somers *is* concerned. Let's hear what your PPP problems are, and I would guess we could sort them out. Greg
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