Recently I have been seeing a problem on multiple devices where pppd never completes. It looks like the ISP thinks that pppd is ready for IPCP, but pppd isn't and so discards the IPCP packet (discarding proto 0x8021 in phase 5) and things just go around in a loop like this forever until the connection is interrupted and it starts again. On starting again, it will either connect normally, or will get itself into the same loop and never progress. Has anyone seen that before? It seems to be a recent thing - I've only seen it in the last few months. James
James Harper via luv-main <luv-main@luv.asn.au> wrote:
Recently I have been seeing a problem on multiple devices where pppd never completes. It looks like the ISP thinks that pppd is ready for IPCP, but pppd isn't and so discards the IPCP packet (discarding proto 0x8021 in phase 5) and things just go around in a loop like this forever until the connection is interrupted and it starts again.
I haven't used pppd for a while and these are the obvious questions: The latest pppd appears to be version 2.4.7, so I would suggest testing with that version if yours is older. Debian Stable, for example, is still on 2.4.6. If that doesn't help, I suppose it's time for a bug report. Have there been relevant upgrades at your end or is this most likely an ISP equipment change? If you think you have a chance of contacting Level 2 (or whatever they call it) support at the ISP, it's probably worth trying, as they may be able to report it to their vendor. I know this is totally obvious... I assume it's the same ISP in all cases.
On 25/07/16 20:36, James Harper via luv-main wrote:
Recently I have been seeing a problem on multiple devices where pppd never completes. It looks like the ISP thinks that pppd is ready for IPCP, but pppd isn’t and so discards the IPCP packet (discarding proto 0x8021 in phase 5) and things just go around in a loop like this forever until the connection is interrupted and it starts again.
On starting again, it will either connect normally, or will get itself into the same loop and never progress.
Has anyone seen that before? It seems to be a recent thing – I’ve only seen it in the last few months.
I don't know if I had that specific problem, but some time back I had my PPPoX setup break. Yeah, it was wierd but it worked well for a year or two, then poof... I had a Draytek Vigor120 acting as a pure adsl modem passing through to a Linksys EA3500 router which did the ppp stuff. Suddenly stopped doing the ppp stuff, no firmware changes made. Replacing the Draytek with another unit gave the same result. There was no error message and buggerall diagnostics I could do, but your problem sounds like a possibility. Internode? I ended up making the Draytek do the ppp stuff as well.
participants (3)
-
Allan Duncan -
James Harper -
Jason White