From: Siebert, Aaron (aaron.siebert@nagrastar.com)
Date: Tue Jun 15 2004 - 11:21:04 EDT
Ds20 De5network adapter 4.0G
Managers,
I have been trying to resolve a network issue for several weeks now. The
resulting effect I believe is that the host quits responding for 20
seconds or so. I have accumulated a tcpdump on the host for all of the
traffic.
Here is one occurrence that puzzles me. You can see here a failure to
respond to a packet sent to the other host's originating communication
port. This sequence of communication happens 4 times and never works. My
question is general, why would that port be closed if it expects a
response and does anybody have any ideas?
00:53:25.596472 rtm01-pi.dish.uplink.4347 >
broadcast-pi.dish.uplink.14005: udp 80
00:53:25.597317 rtm01-pi.dish.uplink.4345 > casdb01-pi.dish.uplink.1037:
udp 168
00:53:25.597581 casdb01-pi.dish.uplink.1037 > rtm01-pi.dish.uplink.4345:
udp 88
00:53:25.599115 rtm01-pi.dish.uplink.4345 > casdb01-pi.dish.uplink.1037:
udp 160
00:53:25.599466 casdb01-pi.dish.uplink.1037 > rtm01-pi.dish.uplink.4345:
udp 744
00:53:25.611890 rtm01-pi.dish.uplink.4345 > casdb01-pi.dish.uplink.1037:
udp 84
00:53:25.612031 casdb01-pi.dish.uplink.1037 > rtm01-pi.dish.uplink.4345:
udp 88
00:53:25.612079 casdb01-pi.dish.uplink.1037 > rtm01-pi.dish.uplink.4345:
udp 84
00:53:25.612101 rtm01-pi.dish.uplink > casdb01-pi.dish.uplink: icmp:
rtm01-pi.dish.uplink udp port 4345 unreachable
00:53:25.612137 rtm01-pi.dish.uplink > casdb01-pi.dish.uplink: icmp:
rtm01-pi.dish.uplink udp port 4345 unreachable
Aaron Siebert
Nagrastar Customer Support Engineer
303-706-5492 fax 303-706-5719
Aaron.Siebert@NagraStar.com
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