[NTLUG:Discuss] Cable Modem Blues (also DSL)

[George Lass]

I too am having "bandwidth" related failures on my DSL.  Large
downloads (or uploads) are causing my connection to fail. I don't
know for sure what is causing them, but they are always preceeded
by a lot of error messages (from /var/log/messages) of the type:

pppd[823]: Protocol-Reject for unsupported protocol XXXXX
pppoe[824]: Bogus PPPoE length field

I am running pppoe on RedHat 7.0.  Other configuration info
can be found in the attachment to this message.

Besides the failures, I'm a bit concerned that all RX packets
on ppp0 appear to be generating frame errors.

Any ideas?

Thanks,

George
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Eth0 initialization (from dmesg)
Jul 22 17:14:49 sluggo isapnp: Board 1 has Identity 42 c9 09 0e 9c 31 10 d4 25:  INT1031 Serial No 3372813980 [checksum 42]
Jul 22 17:14:49 sluggo isapnp: INT1031/3372813980[0]{Intel PRO/10+ or compatible adapter}: Port 0x230; IRQ11 --- Enabled OK
Jul 22 17:14:49 sluggo rc.sysinit: Setting up ISA PNP devices:  succeeded
Jul 22 17:15:12 sluggo kernel:  at 0x230, 00:a0:c9:09:0e:9c, IRQ 11, 10BaseT.
Jul 22 17:15:12 sluggo kernel: eth0: set Rx mode to 1 address.
Jul 22 17:17:38 sluggo network: Bringing up interface eth0:  succeeded
################################################################################
Eth0 driver (from lsmod)
eepro                  13268   1  (autoclean)
################################################################################
Eth0 & ppp0 stats (from ifconfig)
eth0      Link encap:Ethernet  HWaddr 00:A0:C9:09:0E:9C  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:4035025 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3913782 errors:1553 dropped:0 overruns:0 carrier:1458
          collisions:806 txqueuelen:100 
          Interrupt:11 Base address:0x230 

ppp0      Link encap:Point-to-Point Protocol  
          inet addr:WW.XXX.YYY.ZZZ  P-t-P:WW.XXX.YYY.ZZZ  Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1492  Metric:1
          RX packets:65403 errors:0 dropped:0 overruns:0 frame:65403
          TX packets:62812 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:10 
################################################################################
Typical PPPOE error messages (from /var/log/messages)
Jul 22 20:28:36 sluggo pppd[823]: Protocol-Reject for unsupported protocol 0x0

Jul 22 21:06:18 sluggo pppoe[824]: Bogus PPPoE length field

Jul 22 21:19:31 sluggo pppd[823]: Protocol-Reject for unsupported protocol 0x6174

Jul 22 21:53:14 sluggo pppd[823]: Protocol-Reject for unsupported protocol 0x3423

Jul 26 20:55:18 sluggo pppd[823]: No response to 3 echo-requests
Jul 26 20:55:18 sluggo pppd[823]: Serial link appears to be disconnected.
Jul 26 20:55:24 sluggo pppd[823]: Connection terminated.
Jul 26 20:55:24 sluggo pppd[823]: Connect time 5973.1 minutes.
Jul 26 20:55:24 sluggo pppd[823]: Sent 41115734 bytes, received 140009194 bytes.
Jul 26 20:55:24 sluggo pppoe[824]: read (syncReadFromPPP): Input/output error
Jul 26 20:55:24 sluggo pppoe[824]: Sent PADT
Jul 26 20:55:24 sluggo pppd[823]: Exit.
################################################################################
Attempted recovery (from /var/log/messages)
Jul 26 20:55:24 sluggo adsl-connect: ADSL connection lost; attempting re-connection.
Jul 26 20:55:25 sluggo pppd[2528]: pppd 2.3.11 started by root, uid 0
Jul 26 20:55:25 sluggo pppd[2528]: Using interface ppp0
Jul 26 20:55:25 sluggo pppd[2528]: Connect: ppp0 <--> /dev/pts/0
Jul 26 20:55:56 sluggo pppd[2528]: LCP: timeout sending Config-Requests
Jul 26 20:55:56 sluggo pppd[2528]: Connection terminated.
Jul 26 20:56:00 sluggo pppoe[2529]: Timeout waiting for PADO packets
Jul 26 20:56:00 sluggo pppd[2528]: Exit.
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