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Problem connecting to Linux from DECnet/OSI Digital UNIX 4.0E system
OK, here's the scenario .... Ethernet LAN with Linux 2.3.39 and
dnprogs-2.03 (DECPC - 1.2), Cisco router (1.1023) and DECnet/OSI Alpha
end-system running Digital Unix 4.0E/DECnetOSI for Digital Unix 4.0B
with PhaseIV-compatible addressing turned on (TBS18 - 1.7).
The Cisco router can see both end systems as DECnetIV end-systems.
I start ctermd manually on DECPC, then try to connect from TBS18 using
dlogin ... it hangs for a while, then returns to the prompt.
Attached is the tcpdump trace of the connection attempt ... I haven't
decoded it fully yet (I don't have a CTERM spec to hand), but it looks
like:
(a) for some reason, DECPC appears to send several conn-confirm messages
(and several disconn-confirm messages at the end).
(b) there appears to probably be some kind of parameter mismatch, so the
Alpha rejects the connection eventually ...
It doesn't work the other way either (Linux -> Alpha) ... I can get a
trace of that too if it'll help.
Regards,
Rob.
13:31:53.319790 < 1.7 > 1.2 44 conn-initiate 17736>0 ver 4.1 segsize 1454
2c00 2e00 00aa 0004 0002 0400 00aa 0004
0007 0400 0100 0018 0000 4845 0107 ae05
002a 0200 0000 0000 0472 6f6f 7424
13:31:53.319885 > 1.2 > 1.7 25 conn-ack 17736
1900 8126 0000 aa00 0400 0704 0000 aa00
0400 0204 0000 0000 2448 45
13:31:53.325433 > 1.2 > 1.7 32 conn-confirm 8496>17736 ver 4.1 segsize 1459
2000 8126 0000 aa00 0400 0704 0000 aa00
0400 0204 0000 0000 2848 4530 2101 03b3
0500
13:31:53.326027 < 1.7 > 1.2 28 data-ack 17736>8496 ack 0
1c00 2600 00aa 0004 0002 0400 00aa 0004
0007 0400 0100 0004 3021 4845 0080 0000
0000 0000 0000 0000 0000 0000 0000
13:31:55.313492 > 1.2 > 1.7 32 conn-confirm 8496>17736 ver 4.1 segsize 1459
2000 8126 0000 aa00 0400 0704 0000 aa00
0400 0204 0000 0000 2848 4530 2101 03b3
0500
13:31:57.313490 > 1.2 > 1.7 32 conn-confirm 8496>17736 ver 4.1 segsize 1459
2000 8126 0000 aa00 0400 0704 0000 aa00
0400 0204 0000 0000 2848 4530 2101 03b3
0500
13:32:00.813492 > 1.2 > 1.7 32 conn-confirm 8496>17736 ver 4.1 segsize 1459
2000 8126 0000 aa00 0400 0704 0000 aa00
0400 0204 0000 0000 2848 4530 2101 03b3
0500
13:32:07.313491 > 1.2 > 1.7 32 conn-confirm 8496>17736 ver 4.1 segsize 1459
2000 8126 0000 aa00 0400 0704 0000 aa00
0400 0204 0000 0000 2848 4530 2101 03b3
0500
13:32:20.074497 < 1.7 > 1.2 30 link-service 17736>8496 seg 1 dat seg count 0
1e00 2600 00aa 0004 0002 0400 00aa 0004
0007 0400 0100 0010 3021 4845 0100 0000
0000 0000 0000 0000 0000 0000 0000
13:32:20.074533 > 1.2 > 1.7 29 ils-ack 8496>17736 ack 1
1d00 8126 0000 aa00 0400 0704 0000 aa00
0400 0204 0000 0000 1448 4530 2101 80
13:32:20.074640 > 1.2 > 1.7 39 data 8496>17736 ack 0 seg 1
2700 8126 0000 aa00 0400 0704 0000 aa00
0400 0204 0000 0000 6048 4530 2100 8001
0001 0204 0007 0010 00
13:32:20.075241 < 1.7 > 1.2 28 data-ack 17736>8496 ack 1
1c00 2600 00aa 0004 0002 0400 00aa 0004
0007 0400 0100 0004 3021 4845 0180 0000
0000 0000 0000 0000 0000 0000 0000
13:32:20.075333 < 1.7 > 1.2 45 data 17736>8496 seg 1
2d00 2600 00aa 0004 0002 0400 00aa 0004
0007 0400 0100 0060 3021 4845 0100 0402
0400 0700 0000 0000 0000 0000 0000 00
13:32:20.075367 > 1.2 > 1.7 29 data-ack 8496>17736 ack 1
1d00 8126 0000 aa00 0400 0704 0000 aa00
0400 0204 0000 0000 0448 4530 2101 80
13:32:20.075513 > 1.2 > 1.7 62 data 8496>17736 ack 1 seg 2
3e00 8126 0000 aa00 0400 0704 0000 aa00
0400 0204 0000 0000 6048 4530 2101 8002
0009 001b 0001 0001 0400 0000 0000 0000
0000 0102 0002 0202 f403 0304 fe7f 0000
13:32:20.075818 < 1.7 > 1.2 73 data 17736>8496 seg 2
4900 2600 00aa 0004 0002 0400 00aa 0004
0007 0400 0100 0060 3021 4845 0200 0900
2900 0100 0104 0075 6c74 7269 7820 5601
0200 0202 02f4 0103 04fe ff7f 0004 0c42
7050 00a0 9300 180c 1202 29
13:32:20.075850 > 1.2 > 1.7 29 data-ack 8496>17736 ack 2 oack 2304
1d00 8126 0000 aa00 0400 0704 0000 aa00
0400 0204 0000 0000 0448 4530 2102 80
13:32:20.075943 > 1.2 > 1.7 50 data 8496>17736 ack 2 seg 3
3200 8126 0000 aa00 0400 0704 0000 aa00
0400 0204 0000 0000 6048 4530 2102 8003
0009 000f 000b 0006 0201 0007 0201 0002
0219 ff00
13:32:20.076101 < 1.7 > 1.2 28 data-ack 17736>8496 ack 2
1c00 2600 00aa 0004 0002 0400 00aa 0004
0007 0400 0100 0004 3021 4845 0280 0000
0000 0000 0000 0000 0000 0000 0000
13:32:20.076629 < 1.7 > 1.2 28 data-ack 17736>8496 ack 3
1c00 2600 00aa 0004 0002 0400 00aa 0004
0007 0400 0100 0004 3021 4845 0380 0000
0000 0000 0000 0000 0000 0000 0000
13:32:20.076963 > 1.2 > 1.7 80 data 8496>17736 ack 2 seg 4
5000 8126 0000 aa00 0400 0704 0000 aa00
0400 0204 0000 0000 6048 4530 2102 8004
0009 002d 0007 3000 0000 4354 4552 4d20
5665 7273 696f 6e20 312e 302e 330d 0a44
4543 6e65 7420 666f 7220 4c69 6e75 780d
0a0a
13:32:20.076986 > 1.2 > 1.7 84 data 8496>17736 ack 2 seg 5
5400 8126 0000 aa00 0400 0704 0000 aa00
0400 0204 0000 0000 6048 4530 2102 8005
0009 0031 0002 4048 01a0 0000 0000 0000
0000 0000 0020 ffff ffff ffff ffff ffff
ffff ffff ffff ffff ffff ffff ffff ffff
ffff ffff ffff
13:32:20.077169 < 1.7 > 1.2 29 disconn-initiate 17736>8496 object rejected conne
ct
1d00 2600 00aa 0004 0002 0400 00aa 0004
0007 0400 0100 0038 3021 4845 0000 0000
0000 0000 0000 0000 0000 0000 0000
13:32:20.077205 > 1.2 > 1.7 29 disconn-confirm 8496>17736 disconnect complete
1d00 8126 0000 aa00 0400 0704 0000 aa00
0400 0204 0000 0000 4848 4530 212a 00
13:32:20.103758 > 1.2 > 1.7 29 disconn-confirm 8496>17736 disconnect complete
1d00 8126 0000 aa00 0400 0704 0000 aa00
0400 0204 0000 0000 4848 4530 212a 00
13:32:20.813492 > 1.2 > 1.7 29 disconn-confirm 8496>17736 disconnect complete
1d00 8126 0000 aa00 0400 0704 0000 aa00
0400 0204 0000 0000 4848 4530 212a 00