Network Working Group D. Smallberg

Request for Comments: 846 February 1983

Who Talks TCP? -- Survey of 22 February 1983

The list of hosts was taken from the NIC hostname table of 18-Feb-83.
The tests were run on 22-Feb-83 from 8 am to ~8:05 pm PST from
    ISI-VAXA.ARPA.
Dead, refused, and unreachable hosts were retried from 10 am 23-Feb-83
     to ~6:40 pm PST.

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    |       4     |     4   |  29  |    181     | 234
l             +-----------+-------------+---------+------+------------+
a  tcp        |      4    |       1     |     0   |   3  |      2     |  10
i             +-----------+-------------+---------+------+------------+
m  Nothing    |     41    |       2     |     0   |  31  |      7     |  81
             +-----------+-------------+---------+------+------------+----
            61            7           4      63       190     | 325

   FTP                                Result
                                                   accepted or
              no tcp/ftp   unreachable   refused   dead   accepted+
             +-----------+-------------+---------+------+------------+
C  tcp/ftp    |     13    |       4     |     4   |  27  |    173     | 221
l             +-----------+-------------+---------+------+------------+
a  tcp        |      4    |       1     |     0   |   3  |      2     |  10
i             +-----------+-------------+---------+------+------------+
m  Nothing    |     50    |       2     |     3   |  33  |      6     |  94
             +-----------+-------------+---------+------+------------+----
            67            7           7      63       181     | 325
   SMTP                               Result

              no tcp/smtp  unreachable   refused   dead   accepted
             +-----------+-------------+---------+------+------------+
C  tcp/smtp   |     18    |       4     |     4   |  26  |    157     | 209
l             +-----------+-------------+---------+------+------------+
a  tcp        |      4    |       1     |     0   |   3  |      2     |  10
i             +-----------+-------------+---------+------+------------+
m  Nothing    |     47    |       2     |     4   |  34  |     19     | 106
             +-----------+-------------+---------+------+------------+----
            69            7           8      63       178     | 325

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-             d e a d
afsc-ad            10.0.0.53     -tf-             d e a d
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-   accepted  accepted  
aids-unix          10.2.0.56     -tfs             d e a d
alta-coma          3.1.0.50      T---                       
ames-tss           10.0.0.16     -tfs   accepted  accepted  accepted
ames-vmsb          10.3.0.16     ----   accepted  accepted  accepted
anl                10.0.0.55     ----                       
anl-mcs            10.1.0.55     -tfs   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   accepted  accepted  accepted
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   accepted  accepted  accepted
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     -tfs   accepted  accepted+ accepted
bbn-tenexc         10.3.0.49     -tfs   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   accepted  accepted  accepted

Results in host table order:

Name               Address      Claims  Telnet    FTP       SMTP
----               -------      ------  ------    ---       ----
ll                 10.0.0.10     -tfs   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     -tfs   accepted  accepted  accepted
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     -tfs   accepted  accepted  accepted
sri-nsc11          10.0.0.2      ----                       
cctc               10.0.0.20     -t--                       
lll-unix           10.0.0.21     -tfs             d e a d
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  accepted
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     ---s                       
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     -tf-   accepted  accepted  
afwl               10.0.0.48     -tf-   accepted  accepted  
bbn-tenexb         10.0.0.49     -tfs   accepted  accepted+ accepted
bbnf               10.0.0.5      -tfs   accepted  accepted  accepted
st-nic             10.0.0.51     -t--             d e a d
ada-vax            10.0.0.52     -tfs   accepted  accepted  accepted