From: Michael Richardson <mcr@sandelman.ca>
To: linux-ppp@vger.kernel.org
Subject: Re: PPPoE Modem hangup after random time - how to debug?
Date: Mon, 27 Apr 2020 02:14:11 +0000 [thread overview]
Message-ID: <5466.1587953651@localhost> (raw)
In-Reply-To: <CAPJ9Yc8Wvxb_UoqGu=wrrWX2HP5AwE98jvcS3XYnvevxa0RZpg@mail.gmail.com>
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David Balažic <xerces9@gmail.com> wrote:
> Sun Apr 26 17:34:57 2020 daemon.debug pppd[20289]: sent [IPV6CP
> ConfReq id=0x1 <addr fe80::d035:60ed:928e:f741>]
> Sun Apr 26 17:35:00 2020 daemon.debug pppd[20289]: sent [IPV6CP
> ConfReq id=0x1 <addr fe80::d035:60ed:928e:f741>]
> Sun Apr 26 17:35:03 2020 daemon.debug pppd[20289]: sent [IPV6CP
> ConfReq id=0x1 <addr fe80::d035:60ed:928e:f741>]
> Sun Apr 26 17:35:06 2020 daemon.debug pppd[20289]: sent [IPV6CP
> ConfReq id=0x1 <addr fe80::d035:60ed:928e:f741>]
> Sun Apr 26 17:35:09 2020 daemon.warn pppd[20289]: IPV6CP: timeout
> sending Config-Requests
Could this be the reason for the hangup?
pppd gets tired of no IPv6, decides it should hangup?
> The strange part is in the tcpdump there is a PADT sent to an
> "unknown" MAC and my pppd responds. At least that is how I see it.
> You think NOT putting the interface into promiscuous mode (done by
> tcpdump) would prevent this?
> Anyway, now I startted tcpdump with the -p option: tcpdump -e -v -p
> -i eth1 vlan 3902 and pppoed
It could be that promisc mode (no -p) means that the PADT makes something
break, different than what you are investigating. -p avoid promisc mode, so
would avoid seeing that packet.
You mention in another thread that you were trying to do DHCPv6 on a
different (non-PPPoE) interface. I don't see how that would matter unless
the failure caused netifd to decide to retry it all.
It seems that you ought to try the noipv6 option to pppd.
--
] Never tell me the odds! | ipv6 mesh networks [
] Michael Richardson, Sandelman Software Works | IoT architect [
] mcr@sandelman.ca http://www.sandelman.ca/ | ruby on rails [
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next prev parent reply other threads:[~2020-04-27 2:14 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-22 17:45 PPPoE Modem hangup after random time - how to debug? David Balažic
2020-04-22 19:51 ` Michael Richardson
2020-04-22 22:00 ` James Carlson
2020-04-23 0:08 ` Guillaume Nault
2020-04-23 0:41 ` Michael Richardson
2020-04-23 2:01 ` James Carlson
2020-04-23 10:37 ` David Balažic
2020-04-23 11:12 ` David Balažic
2020-04-23 12:13 ` David Balažic
2020-04-23 15:59 ` Michael Richardson
2020-04-23 16:01 ` Michael Richardson
2020-04-24 13:47 ` David Balažic
2020-04-24 14:02 ` David Balažic
2020-04-24 14:26 ` James Carlson
2020-04-24 15:44 ` Guillaume Nault
2020-04-24 15:54 ` Guillaume Nault
2020-04-26 1:38 ` Michael Richardson
2020-04-26 12:44 ` David Balažic
2020-04-26 12:48 ` David Balažic
2020-04-26 19:03 ` David Balažic
2020-04-27 2:14 ` Michael Richardson [this message]
2020-04-27 9:59 ` David Balažic
2020-04-27 13:43 ` James Carlson
2020-04-27 20:08 ` Guillaume Nault
2020-04-27 20:30 ` Guillaume Nault
2020-04-27 23:34 ` David Balažic
2020-04-28 10:18 ` David Balažic
2020-04-28 11:00 ` Guillaume Nault
2020-04-29 11:58 ` David Balažic
2020-05-03 10:31 ` David Balažic
2020-05-04 12:27 ` Guillaume Nault
2020-05-04 13:01 ` Guillaume Nault
2020-05-04 15:54 ` David Balažic
2020-05-04 16:36 ` David Balažic
2020-05-04 18:11 ` Guillaume Nault
2020-05-04 18:43 ` David Balažic
2020-05-06 9:52 ` David Balažic
2020-05-06 10:34 ` David Balažic
2020-05-06 14:26 ` Guillaume Nault
2020-05-06 15:02 ` Guillaume Nault
2020-05-06 15:15 ` James Carlson
2020-05-06 15:39 ` David Balažic
2020-05-06 15:54 ` David Balažic
2020-05-06 20:20 ` Guillaume Nault
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