Bug in userland PPP LQR?

Mike Tancsa mike at sentex.net
Thu Jul 12 00:23:10 UTC 2007

On Tue, 10 Jul 2007 18:13:48 -0600, in sentex.lists.freebsd.net you

>I may have found a bug in the LQR code of FreeBSD's userland PPP. 
>I've been noticing that PPTP sessions are dropping with messages 
>saying "** Too many LQR packets lost **" on some important wireless 
>links. Wireless links occasionally do drop a packet or two, but 
>it's rare to see 5 dropped packets in a row (which is supposed to 
>be when PPP gives up and kills the link). Yet, the links go down 
>when there's even an occasional dropped packet.

Did you try and use just LCP echo mode instead ?  I have come across a
number of devices (especially GPRS/EVDO cards) that seem to say yes to
supporting LQR, but do not.  Try instead lcp echo

Mike Tancsa, Sentex communications http://www.sentex.net
Providing Internet Access since 1994
mike at sentex.net, (http://www.tancsa.com)

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