Hi all,

I’m having a problem where PPPoE disconnects every 6-7 minutes. I’m
originally saw this in 5.9; I then upgraded to 6.0 but still have the
same issue.

If I run “ifconfig pppoe0 up” right after it disconnects, it comes
right back up again. I have a ddwrt box that can successfully keep
this same PPPoE connection up without these disconnects, so I don’t
think the problem is related to the ISP equipment.

My hostname.pppoe0 looks like:

inet 0.0.0.0 255.255.255.255 NONE \
  pppoedev em0 authproto pap peerproto chap \
  authname ‘username’ authkey ‘mypassword’ up
dest 0.0.0.1
!/sbin/route add default -ifp pppoe0 0.0.0.1

In dmesg and /var/log/messages, I see only this:
Mar 17 04:02:42 greatwall /bsd: pppoe0: LCP keepalive timeout

I ran tcpdump, and this is all the pppoe traffic I see:
04:09:07.070988 Echo-Request, Magic-Number=1174906872
04:09:07.070995 Echo-Reply, Magic-Number=1072546934
04:09:09.231366 Configure-Request, Interface-ID=0225:baff:fe7a:03fd
04:09:09.231378 Configure-Ack, Interface-ID=0225:baff:fe7a:03fd
04:09:12.331417 Configure-Request, Interface-ID=0225:baff:fe7a:03fd
04:09:12.331430 Configure-Ack, Interface-ID=0225:baff:fe7a:03fd
04:09:15.631510 Configure-Request, Interface-ID=0225:baff:fe7a:03fd
04:09:15.631522 Configure-Ack, Interface-ID=0225:baff:fe7a:03fd
04:09:32.308186 Echo-Request, Magic-Number=1072546934
04:09:42.310549 Echo-Request, Magic-Number=1072546934
04:09:52.312791 Echo-Request, Magic-Number=1072546934
04:10:02.315637 Terminate-Request
04:10:02.342731 Configure-Request, Magic-Number=849593138,
Max-Rx-Unit=1492, Auth-Prot CHAP/MD5[|lcp]
04:10:02.390879 Configure-Request, Max-Rx-Unit=1492, Auth-Prot PAP,
Magic-Number=535689543, Vendor-Ext
04:10:02.390889 Configure-Ack, Max-Rx-Unit=1492, Auth-Prot PAP,
Magic-Number=535689543[|lcp]
04:10:02.390995 Configure-Reject, Auth-Prot CHAP/MD5, Vendor-Ext
04:10:02.391001 Terminate-Request
04:10:02.392061 Terminate-Ack

This isn't much to go on so I’d be grateful for any suggestions about
where to troubleshoot this further.

Thanks,
Nick

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