Subject: corrupt packet problems
To: None <current-users@NetBSD.ORG>
From: Rob Windsor <windsor@punk.hedgehog.com>
List: current-users
Date: 12/31/1995 03:00:53
Verily did John Hawkinson write:
>> Yah ... I get that from Ames, too. I had heard that MFS Datanet was
>> "looking into it", but I haven't heard anything since. Bill? Any new
>> status?
> It doesn't look awful much like a MAE-W problem. Since:
> 9 mae-east-plusplus.Washington.mci.net (204.70.74.102)
> 10 Net99-Mae-East01.net99.net (192.41.177.170)
> 11 sj-0.SanJose.net99.net (204.157.38.2)
> 12 mae-west.best.net (198.32.136.36)
> 13 netbsd.warped.com
> And:
> [lola-granola!jhawk] ~> ping -c 1 -p 00000000ffffffff 192.41.177.170
> PATTERN: 0x00000000ffffffff
> PING 192.41.177.170 (192.41.177.170): 56 data bytes
> 64 bytes from 192.41.177.170: icmp_seq=0 ttl=246 time=39.079 ms
> but:
> PATTERN: 0x00000000ffffffff
> PING 204.157.38.2 (204.157.38.2): 56 data bytes
> 64 bytes from 204.157.38.2: icmp_seq=0 ttl=242 time=84.730 ms
> wrong data byte #24 should be 0x0 but was 0xff
> So it would be an internal net99 issue...
Hmm.. while bored one night, I did some traceroutes and pings from my
system, which is one hop (essentially) away from ftp.netbsd.org...
2 dedicated1.mv.best.net (205.149.163.203)
3 core-eth-0/3.mf.best.net (205.149.163.1)
- 4 mae-west.net99.net (198.32.136.16)
* 5 mae-west.SanFrancisco.mci.net (198.32.136.12)
6 borderx2-hssi2-0.SanFrancisco.mci.net (204.70.158.117)
7 border4-fddi-0.SanFrancisco.mci.net (204.70.3.163)
2 dedicated1.mv.best.net (205.149.163.203)
3 core-eth-0/3.mf.best.net (205.149.163.1)
4 mae-west.net99.net (198.32.136.16)
* 5 sl-mae-w-F0/0.sprintlink.net (198.32.136.11)
6 sl-stk-6-H3/0-T3.sprintlink.net (144.228.10.45)
7 sl-stk-5-F0/0.sprintlink.net (144.228.40.5)
2 dedicated1.mv.best.net (205.149.163.203)
3 core-eth-0/3.mf.best.net (205.149.163.1)
* 4 T3-CRL-SFO-01-H1/0.US.CRL.NET (198.32.136.10)
5 T3-CRL-SFO-01-H3/0.US.CRL.NET (149.20.64.19)
2 dedicated1.mv.best.net (205.149.163.203)
3 core-eth-0/3.mf.best.net (205.149.163.1)
* 4 fddi.scl-ca-gw3.netcom.net (163.179.206.2)
5 fddi.scl-ca-gw1.netcom.net (163.179.206.1)
6 t3-1.netcomgw.netcom.net (163.179.220.193)
(bad pings roughly 50% of the time)
2 dedicated1.mv.best.net (205.149.163.203)
3 core-eth-0/3.mf.best.net (205.149.163.1)
4 mae-west.net99.net (198.32.136.16)
5 mae-west.agis.net (198.32.136.21)
6 detroit.agis.net (204.130.243.37)
7 gw-core-1.coast.net (205.149.128.100)
(no problems at all)
>From .au, the first traceroute above looks like:
8 border4-hssi1-0.SanFrancisco.mci.net (204.70.35.5)
9 borderx2-fddi0-0.SanFrancisco.mci.net (204.70.3.164)
* 10 fix-west-nap.SanFrancisco.mci.net (204.70.158.118)
- 11 mae-west.net99.net (198.32.136.16)
12 mae-west.best.net (198.32.136.36)
The `*' is where the problem appears on my side, and the `-' is where I
had a friend in .au do the same and the problem appears for him.
The netcom traceroute did crazy things. When traceroute'ng specifically
to "fddi.scl-ca-gw3.netcom.net (163.179.206.2)" (hop number 4), the
routing went nuts.
The net99.net -> agis.net link is fine, though.
I cc'd this to the address listed in interNIC as the Technical Contact
for net99. Maybe they can provide some information.
-- Rob
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