Who talks TCP?
RFC 834

Document Type RFC - Unknown (December 1982; No errata)
Obsoleted by RFC 835
Obsoletes RFC 833
Last updated 2013-03-02
Stream Legacy
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IESG IESG state RFC 834 (Unknown)
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Network Working Group                                D. Smallberg
Request for Comments:  834                           December 1982

                           Who Talks TCP?

The list of hosts was taken from the NIC hostname table of 2-Dec-82.
The tests were run on 22-Dec-82 from ~12:01 pm to ~8:30 pm PST.
Dead, refused, and unreachable hosts were retried 24-Dec-82 from ~3:50 pm
     to ~5:15 pm PST.

Claims are taken from the NIC host table:
        T = tcp (no particular services mentioned)
        t = tcp/telnet
        f = tcp/ftp
        s = tcp/smtp

Results for each service:
        blank (not accepted)
        refused
        unreachable
        dead
        accepted
        accepted+ (FTP allowed user anonymous, password guest)

Summary information:

   Telnet                             Result

                no telnet   unreachable   refused   dead   accepted
              +-----------+-------------+---------+------+------------+
C  tcp/telnet |      7    |      22     |     2   |  26  |     73     | 130
l             +-----------+-------------+---------+------+------------+
a  tcp        |     11    |       0     |     0   |   4  |      9     |  24
i             +-----------+-------------+---------+------+------------+
m  Nothing    |    104    |      17     |     0   |  19  |     20     | 160
              +-----------+-------------+---------+------+------------+----
                   122           39           2      49       102     | 314

   FTP                                Result
                                                           accepted or
               no tcp/ftp   unreachable   refused   dead   accepted+
              +-----------+-------------+---------+------+------------+
C  tcp/ftp    |      6    |      21     |     5   |  25  |     50     | 107
l             +-----------+-------------+---------+------+------------+
a  tcp        |     12    |       0     |     2   |   4  |      6     |  24
i             +-----------+-------------+---------+------+------------+
m  Nothing    |    112    |      18     |     9   |  20  |     24     | 183
              +-----------+-------------+---------+------+------------+----
                   130           39          16      49        80     | 314

Page 1


   SMTP                               Result

               no tcp/smtp  unreachable   refused   dead   accepted
              +-----------+-------------+---------+------+------------+
C  tcp/smtp   |      5    |      20     |     1   |  14  |     56     |  96
l             +-----------+-------------+---------+------+------------+
a  tcp        |     12    |       0     |     4   |   4  |      4     |  24
i             +-----------+-------------+---------+------+------------+
m  Nothing    |    108    |      19     |    14   |  31  |     22     | 194
              +-----------+-------------+---------+------+------------+----
                   125           39          19      49        82     | 314

Results in alphabetical order:

Name               Address      Claims  Telnet    FTP       SMTP
----               -------      ------  ------    ---       ----
acc                10.2.0.54     ----                       
ada-vax            10.0.0.52     ----                       
aerospace          10.2.0.65     T---             d e a d
afgl               10.1.0.66     ----                       
afsc-ad            10.0.0.53     T---                       
afsc-dev           10.2.0.53     ----   accepted  accepted  
afsc-hq            10.0.0.67     ----                       
afsc-sd            10.0.0.65     ----                       
afwl               10.0.0.48     ----                       
alta-coma          3.1.0.50      T---                       
ames-11            10.3.0.16     ----                       
ames-67            10.0.0.16     T---                       
anl                10.0.0.55     ----                       
anl-mcs            10.1.0.55     ----                       
arpa-dms           10.0.0.28     ----                       
arpa-png11         10.3.0.28     ----                       
bbn-admin          3.1.0.6       -tfs   accepted  accepted  accepted
bbn-cd             3.3.0.9       -tfs   accepted  accepted  accepted
bbn-clxx           10.2.0.71     -tfs   accepted  accepted  accepted
bbn-inoc           3.2.0.6       -tfs   accepted  accepted  accepted
bbn-noc            3.1.0.14      -tfs   accepted  accepted  accepted
bbn-noc2           10.6.0.82     -tfs   accepted  accepted  accepted
bbn-nu             10.0.0.72     ---s                       
bbn-rsm            10.4.0.82     -t--   accepted            
bbn-unix           3.1.0.4       -tfs   accepted  accepted  accepted
bbn-vax            10.1.0.82     -tfs   accepted  accepted  accepted
bbna               10.3.0.5      -tf-   accepted  accepted  accepted
bbnb               10.0.0.49     -t--   accepted  refused   refused
bbnc               10.3.0.49     -t--   accepted  refused   refused
bbncca             3.0.0.2       -tfs   accepted  accepted  accepted
bbnccb             3.1.0.2       -tfs   accepted  accepted  accepted
bbnccc             3.2.0.2       -tfs   accepted  accepted  accepted
bbnccd             3.3.0.2       -tfs   accepted  accepted  accepted
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