Title: Message
I'm running short on theories and options, so I thought
I would see if anyother ISPshave seen this problem on your
network(s). If so, what was the cure?
mjr
-Original Message-
The Unknown
problem.
Symptoms: At random times dialup,
dedicated, internal network users are unable to
pass TCP traffic to off network sites. ICMP and UDP appears to be
uneffected by the outage which lasts anywhere from 2 to 5
minutes.
The problem appears to be wide spread with similar reports from WVNET
and other ISPS. nTelos is experiencing a similar problem but we have
yet to confirm it is the same.
Problem has changed in it's action but remained similar enough
to
consider it the same problem.
Effected Platforms: Windows 2000
Pro, XP Home, XP Pro, 2003 Server.
Uneffected Platforms: Unix, MacOS
(?)
History: During the week of
2/9/04 the call center
started recieving reports of
users being unable to connect to sites off the CityNet network. Sites
hosted on the internal network are uneffected by the outage.
Initally it was thought to be a Internet Explorer problem possably
caused
by the KB832894 / IE SP1 or other updates but after further investigation
it was found that Mozilla users were encountering the same problem.
After several days of testing it was determined that during the outage any
TCP session started on any port would fail. TCP sessions started before
the outage continue to work and show no ill effects from the
outage.
After logging connection attempts at various intervals on many
machines
there appears to be no sort of pattern in the outages. Most machines
encounter the problem, some more than others and a few do not
encounter
it at all. The duration and frequency of the outage is very
fluid.
During an outage, we can verify that the packet does seem to leave and
reenter
the network:
Mar 5 22:28:04
pittpa-chaswv-ds3 17083: SLOT 2:6d20h: %SEC-6-IPACCESSLOGP: list 113 permitted
tcp 69.43.14.174(3376) - 216.41.224.3(80), 1 packet
Mar 5 22:28:09
pittpa-chaswv-ds3 17084: SLOT 1:6d20h: %SEC-6-IPACCESSLOGP: list 111 permitted
tcp 216.41.224.3(80) - 69.43.14.174(3376), 1 packet
Mar 5 22:28:09
pittpa-chaswv-ds3 17085: SLOT 2:6d20h: %SEC-6-IPACCESSLOGP: list 113 permitted
tcp 69.43.14.174(3378) - 216.41.224.3(80), 1 packet
Mar 5 22:28:09
pittpa-chaswv-ds3 17086: SLOT 1:6d20h: %SEC-6-IPACCESSLOGP: list 111 permitted
tcp 216.41.224.3(80) - 69.43.14.174(3378), 1 packet
Mar 5 22:33:24
pittpa-chaswv-ds3 17089: SLOT 1:6d20h: %SEC-6-IPACCESSLOGP: list 111 permitted
tcp 216.41.224.3(80) - 69.43.14.174(3378), 7 packets
Mar 5 22:33:24
pittpa-chaswv-ds3 17090: SLOT 1:6d20h: %SEC-6-IPACCESSLOGP: list 111 permitted
tcp 216.41.224.3(80) - 69.43.14.174(3376), 17 packets
Mar 5 22:33:58
pittpa-chaswv-ds3 17092: SLOT 2:6d20h: %SEC-6-IPACCESSLOGP: list 113 permitted
tcp 69.43.14.174(3378) - 216.41.224.3(80), 7 packets
Mar 5 22:33:58
pittpa-chaswv-ds3 17093: SLOT 2:6d20h: %SEC-6-IPACCESSLOGP: list 113 permitted
tcp 69.43.14.174(3376) - 216.41.224.3(80), 18 packets
Mar 5 00:58:30
pittpa-clarwv-ds3 16062: SLOT 2:5d22h: %SEC-6-IPACCESSLOGP: list 113 permitted
tcp 69.43.23.23(3183) - 216.41.224.3(80), 1 packet
Mar 5 00:58:30
pittpa-clarwv-ds3 16063: SLOT 1:5d22h: %SEC-6-IPACCESSLOGP: list 111 permitted
tcp 216.41.224.3(80) - 69.43.23.23(3183), 1 packet
Mar 5 01:03:28
pittpa-clarwv-ds3 16067: SLOT 2:5d22h: %SEC-6-IPACCESSLOGP: list 113 permitted
tcp 69.43.23.23(3217) - 216.41.224.3(80), 1 packet
Mar 5 01:03:28
pittpa-clarwv-ds3 16068: SLOT 1:5d22h: %SEC-6-IPACCESSLOGP: list 111 permitted
tcp 216.41.224.3(80) - 69.43.23.23(3217), 1 packet
Mar 5 01:03:34
pittpa-clarwv-ds3 16069: SLOT 2:5d22h: %SEC-6-IPACCESSLOGP: list 113 permitted
tcp 69.43.23.23(3228) - 216.41.224.3(80), 1 packet
Mar 5 01:03:34
pittpa-clarwv-ds3 16070: SLOT 1:5d22h: %SEC-6-IPACCESSLOGP: list 111 permitted
tcp 216.41.224.3(80) - 69.43.23.23(3228), 1 packet
Mar 5 01:03:39
pittpa-clarwv-ds3 16072: SLOT 2:5d22h: %SEC-6-IPACCESSLOGP: list 113 permitted
tcp 69.43.23.23(3239) - 216.41.224.3(80), 1 packet
Mar 5 01:03:47
pittpa-clarwv-ds3 16073: SLOT 2:5d22h: %SEC-6-IPACCESSLOGP: list 113 permitted
tcp 69.43.23.23(3183) - 216.41.224.3(80), 74 packets
Mar 5 01:04:13
pittpa-clarwv-ds3 16075: SLOT 1:5d22h: %SEC-6-IPACCESSLOGP: list 111 permitted
tcp 216.41.224.3(80) - 69.43.23.23(3183), 72 packets
Mar 5 01:08:46
pittpa-clarwv-ds3 16078: SLOT 2:5d22h: %SEC-6-IPACCESSLOGP: list 113 permitted
tcp 69.43.23.23(3218) - 216.41.224.3(80), 4 packets
Mar 5 01:08:46
pittpa-clarwv-ds3 16079: SLOT 2:5d22h: %SEC-6-IPACCESSLOGP: list 113 permitted
tcp 69.43.23.23(3217) - 216.41.224.3(80), 3 packets
Mar 5 01:08:46
pittpa-clarwv-ds3 16080: SLOT 2:5d22h: %SEC-6-IPACCESSLOGP: list 113 permitted
tcp 69.43.23.23(3221) - 216.41.224.3(80), 19 packets
Mar 5 01:08:46
pittpa-clarwv-ds3 16081: SLOT 2:5d22h: %SEC-6-IPACCESSLOGP: list 113 permitted
tcp
