VAX VMS TCP/IP bug? w/ Telnet

From: Chuck McManis <cmcmanis_at_mcmanis.com>
Date: Fri Sep 29 13:13:30 2000

Is there some known bug with the TCP/IP implementation of telnet in the DEC
version of TCP/IP ? I installed a fairly recent version of TCP/IP on my 10
year old VAX and when I telnet to it the VAX is driven to its knees and the
hub goes wild. Doing a trace on the packets reveals zillions of

10:56:25.213012 unix.1714 > vax.telnet: P 36303:36314(11) ack 20085 win
17520 (DF) [tos 0x10]
10:56:25.216076 vax.telnet > unix.1714: P 20085:20091(6) ack 36314 win 4369
10:56:25.216856 unix.1714 > vax.telnet: P 36314:36325(11) ack 20091 win
17520 (DF) [tos 0x10]
10:56:25.219984 vax.telnet > unix.1714: P 20091:20097(6) ack 36325 win 4369
10:56:25.220726 unix.1714 > vax.telnet: P 36325:36336(11) ack 20097 win
17520 (DF) [tos 0x10]

As you can see from the trace a couple of things are strange. Why are the
windows screwed up? Why are the TOS bits set? Very confusing.

--Chuck
Received on Fri Sep 29 2000 - 13:13:30 BST

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