2 vs. SUN 4.1 TCP

EAF@.Prime.COM (08/01/90)

IBM TCP-IP for OS/2 on IBM OS/2 1.2 EE will talk to:
      SUN OS 4.03
      PRIMOS TCP-IP
It will not talk to:
      SUN OS 4.1 TCP-IP
      EXL Unix 5.3.1 Rel 2.0 TCP-IP/S

Anyone know why?

Thanks in advance.

Edward A. Feustel                |     efeustel@primerd.prime.com
Prime Computer                   |     eaf@res-c4.prime.com.xa
500 Old Connecticut Path         |     mit-eddie!primerd!efeustel
Framingham, Ma. 01701-4548       |     (508)-879-2960 x3846

oleg@ibm.com (08/02/90)

> Nf-ID: #N::90100006:000:468
> Nf-From: .Prime.COM!EAF    Aug  1 12:44:00 1990
>
>
> IBM TCP-IP for OS/2 on IBM OS/2 1.2 EE will talk to:
>       SUN OS 4.03
>       PRIMOS TCP-IP
> It will not talk to:
>       SUN OS 4.1 TCP-IP
>       EXL Unix 5.3.1 Rel 2.0 TCP-IP/S
>
> Anyone know why?
>
> Thanks in advance.
>
> Edward A. Feustel                |     efeustel@primerd.prime.com
> Prime Computer                   |     eaf@res-c4.prime.com.xa
> 500 Old Connecticut Path         |     mit-eddie!primerd!efeustel
> Framingham, Ma. 01701-4548       |     (508)-879-2960 x3846

There are two different ports that different TALKs listen to (517 and 518).
Apparently, SUN 4.1 and EXL listen on port 517 (IBM uses 518).

Oleg Vishnepolsky
IBM T. J. Watson Research Center