Network Working Group D. Smallberg

Request for Comments: 845 February 1983

Who Talks TCP? -- Survey of 15 February 1983

The list of hosts was taken from the NIC hostname table of 3-Feb-83.
The tests were run on 15-Feb-83 from 8 am to ~12:30 pm PST, and on
    16-Feb-83 from 10 am to ~11:10 am PST from ISI-VAXA.ARPA
Dead, refused, and unreachable hosts were retried from 10 pm 16-Feb-83
     to ~6:40 am 17-Feb-83.

Claims are taken from the NIC host table:

= tcp (no particular services mentioned)
= tcp/telnet
= tcp/ftp
= tcp/smtp

Results for each service:

lank (not accepted)
efused
nreachable
ead
ccepted
ccepted+ (FTP allowed user anonymous, password guest)

Summary information:

   Telnet                             Result

        no telnet   unreachable   refused   dead   accepted
             +-----------+-------------+---------+------+------------+
C  tcp/telnet |     16    |      10     |     5   |  31  |    155     | 217
l             +-----------+-------------+---------+------+------------+
a  tcp        |      7    |       0     |     0   |   3  |      9     |  19
i             +-----------+-------------+---------+------+------------+
m  Nothing    |     43    |       5     |     1   |  32  |     12     |  93
             +-----------+-------------+---------+------+------------+----
            66           15           6      66       176     | 329

   FTP                                Result
                                                   accepted or
              no tcp/ftp   unreachable   refused   dead   accepted+
             +-----------+-------------+---------+------+------------+
C  tcp/ftp    |     13    |      10     |     4   |  28  |    144     | 199
l             +-----------+-------------+---------+------+------------+
a  tcp        |      7    |       0     |     0   |   3  |      9     |  19
i             +-----------+-------------+---------+------+------------+
m  Nothing    |     50    |       5     |     5   |  35  |     16     | 111
             +-----------+-------------+---------+------+------------+----
            70           15           9      66       169     | 329
              no tcp/smtp  unreachable   refused   dead   accepted
             +-----------+-------------+---------+------+------------+
C  tcp/smtp   |     10    |      10     |     9   |  28  |    124     | 181
l             +-----------+-------------+---------+------+------------+
a  tcp        |      7    |       0     |     1   |   3  |      8     |  19
i             +-----------+-------------+---------+------+------------+
m  Nothing    |     57    |       5     |     7   |  35  |     25     | 129
             +-----------+-------------+---------+------+------------+----
            74           15          17      66       157     | 329

Results in alphabetical order:

Name               Address      Claims  Telnet    FTP       SMTP
----               -------      ------  ------    ---       ----
acc                10.2.0.54     ----             d e a d
ada-vax            10.0.0.52     -tfs   accepted  accepted  accepted
aerospace          10.2.0.65     -tfs   accepted  accepted  accepted
afgl               10.1.0.66     -tf-   accepted  accepted  
afsc-ad            10.0.0.53     -tf-   accepted  accepted  
afsc-dev           10.2.0.53     -tf-   accepted  accepted  
afsc-hq            10.0.0.67     ----                       
afsc-sd            10.0.0.65     ----                       
afwl               10.0.0.48     -tf-             d e a d
aids-unix          10.2.0.56     -tfs   accepted  accepted  accepted
alta-coma          3.1.0.50      T---                       
ames-tss           10.0.0.16     -tf-   accepted  accepted  refused
ames-vmsb          10.3.0.16     ----   accepted  accepted  accepted
anl                10.0.0.55     ----                       
anl-mcs            10.1.0.55     ----   accepted  accepted  accepted
apg-1              10.1.0.29     -tfs   accepted  accepted  accepted
arpa-dms           10.0.0.28     ----             d e a d
arpa-png11         10.3.0.28     -tfs                       
bbn-admin          3.1.0.6       -tfs   refused   refused   refused
bbn-cd             3.3.0.9       -tfs   accepted  accepted  accepted
bbn-clxx           10.4.0.49     -tfs   accepted  accepted  accepted
bbn-cvax           128.11.0.2    -tfs                       
bbn-inoc           10.2.0.82     -tfs                       
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     -tfs                       
bbn-rsm            10.4.0.82     -t--             d e a d
bbn-tenexb         10.0.0.49     -tf-   accepted  accepted+ accepted
bbn-tenexc         10.3.0.49     -tf-   accepted  accepted  accepted
bbn-unix           10.1.0.72     -tfs   accepted  accepted  accepted
bbn-vax            10.1.0.82     -tfs   accepted  accepted  accepted
bbna               10.3.0.5      -tfs   accepted  accepted  accepted
bbncca             3.0.0.2       -tfs   accepted  accepted  accepted
bbnccb             3.1.0.2       -tfs   accepted  accepted  accepted
bbnccc             3.2.0.2       -tfs             d e a d
bbnccd             3.3.0.2       -tfs   accepted  accepted  accepted

Results in host table order:

Name               Address      Claims  Telnet    FTP       SMTP
----               -------      ------  ------    ---       ----
ll                 10.0.0.10     ---s   accepted  accepted  accepted
su-ai              10.0.0.11     -tfs                       
compion-vms        10.0.0.12     -tfs   accepted  accepted  accepted
gunter-unix        10.0.0.13     ----             d e a d
cmu-cs-b           10.0.0.14     ----             d e a d
ames-tss           10.0.0.16     -tf-   accepted  accepted  refused
mitre              10.0.0.17     -tfs   accepted  accepted  accepted
radc-multics       10.0.0.18     -tfs   accepted  accepted  accepted
nbs-vms            10.0.0.19     ----   accepted  accepted  accepted
sri-nsc11          10.0.0.2      ----                       
cctc               10.0.0.20     -t--                       
lll-unix           10.0.0.21     ----             d e a d
isi-speech11       10.0.0.22     ----                       
usc-eclb           10.0.0.23     -tfs   accepted  accepted+ accepted
nadc               10.0.0.24     -tfs   accepted  accepted  accepted
seismo             10.0.0.25     -tfs   accepted  accepted  accepted
usc-isid           10.0.0.27     -tfs   accepted  accepted+ accepted
arpa-dms           10.0.0.28     ----             d e a d
brl                10.0.0.29     -tfs   accepted  accepted  refused
nosc-cc            10.0.0.3      -tfs   accepted  accepted  accepted
cca-unix           10.0.0.31     -tfs   accepted  accepted+ accepted
parc-maxc          10.0.0.32     -tfs   accepted  accepted+ accepted
nps                10.0.0.33     T---                       
nosc-secure2       10.0.0.35     ----                       
coins-tas          10.0.0.36     ----                       
purdue             10.0.0.37     -tfs   accepted  accepted  accepted
utah-cs            10.0.0.4      -tfs   accepted  accepted+ accepted
office-1           10.0.0.43     T---                       
mit-xx             10.0.0.44     -tfs   accepted  accepted+ accepted
collins-pr         10.0.0.46     T---             d e a d
wpafb              10.0.0.47     ----   accepted  accepted  
afwl               10.0.0.48     -tf-             d e a d