Date: Tue, 27 Jul 1999 00:28:06 +0200 From: Gary Jennejohn <garyj@peedub.muc.de> To: Paul Herman <pherman@element-5.de> Cc: Dirk Nerling <Dirk.Nerling@pdv.de>, freebsd-isdn@FreeBSD.ORG Subject: Re: can somebody explain me the followings dial / never disconnects? Message-ID: <199907262228.AAA41571@peedub.muc.de> In-Reply-To: Your message of "Mon, 26 Jul 1999 16:22:56 %2B0200." <Pine.BSF.4.10.9907261615180.5380-100000@brain.element-5.de>
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Paul Herman writes: >Hi Dirk, > >> 1. My home box never disconnect although I have no real IP connection = (like >> telnet, ftp, http and so on). The tcpdump have the following entries: >> = >> 11:57:30.891509 ID-066 LCP: Echo-Request, Magic-Number=3D273789161 >> 0942 000c 1051 b0e9 ff01 1b4d > >I had the same exact problem. i4b measuers "idleness" using an interrup= t >on the ISDN card. The LCP Requests come from your provider, and so i4b >thinks the line is never idle, because the card isn't. This is of cours= e >very bad, because then the whole concept of being idle gets thrown out t= he >window. > >I wrote a kernel patch for this, and should be in the contrib/ directory= >of your i4b distribution, but I wrote it for 0.70 and don't know if it >works for any later versions. My patch basicaly adds an idle timer to >sppp(4) just like ppp(4) has had all these years. > >This is a bug, that needs to be fixed. > one could just as easily argue that this is a bug in the CISCO router and CISCO should fix it. Or the administrator of the router should turn off the echo requests. There was a reason why your patch wasn't integrated, although I can't remember what it was right now. I think because it effectively disables the short hold timer which we've all come to know and love. --- Gary Jennejohn Home - garyj@muc.de Work - garyj@fkr.dec.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isdn" in the body of the message
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