Date: Sun, 14 Jan 1996 14:14:25 -0500 From: dennis@etinc.com (dennis) To: patl@Phoenix.Volant.ORG Cc: hackers@freebsd.org Subject: Re: How to keepalive a sick ppp process? Message-ID: <199601141914.OAA06374@etinc.com>
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>|> Nate Williams wrote: >|> > > I am using iijppp (damn fine program!), but every now-and-then it dies >|> > > on me. >|> > >|> > Do you need the on-demand cababilities of ppp, or are you looking for a >|> > 'full-time' link? If the latter, you can use pppd to provide the same >|> > functionality. We eneded up using pppd vs. ijppp because of the >|> > occasional instability of the user-level stuff. >|> >|> I am using the on-demand capabilities to "kick" the line. I am using >|> el-cheapo 14400 modems on a 2-wire leased line, and the line dies every >|> now-and-then (there is a Portmaster on the other end). I use the chat >|> script as a "modem kicker". >|> >|> I haven't looked at the pppd driver recently. Last time I looked was in >|> 1.1.5.1 days, and I could not get the chat(1) to behave (small lack of >|> trying here) > >I'm using a USR 28,800 Sportster, which drops the line occasionally. >My solution is to run 'ping -i 60 HISADDR', where HISADDR is the IP >address of the machine at the other end of the PPP link. The '-i 60' >keeps the ping packets down to one a minute, so the overhead is >insignificant. If the line is dropped, it is less than a minute before >a redial is triggered by the ping packet. > >(Some day I'll get around to calling USR to ask about the system chip >upgrade to fix the problem...) I'm using an original USR 28.8 modem with pppd with no such problems.... dennis ---------------------------------------------------------------------------- Emerging Technologies, Inc. http://www.etinc.com Synchronous Communications Cards and Routers For Discriminating Tastes. 56k to T1 and beyond. Frame Relay, PPP, HDLC, and X.25
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