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IETF RFC 833
Who talks TCP?
Last modified on Wednesday, September 23rd, 1992
 Permanent link to RFC 833
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Network Working Group D. Smallberg
Request for Comments: 833 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 14-Dec-82 from ~8:00 am to ~4:30 pm PST.
Dead, refused, and unreachable hosts were retried 14-Dec-82 from ~10:15 pm
to ~11:45 pm PST.
(Duplicately listed hosts were removed slightly differently from the way
they were in last week's report, so the row totals in the summary
tables below are slightly changed from last week.)
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 | 18 | 6 | 2 | 27 | 77 | 130
l +-----------+-------------+---------+------+------------+
a tcp | 10 | 0 | 0 | 4 | 10 | 24
i +-----------+-------------+---------+------+------------+
m Nothing | 95 | 8 | 2 | 39 | 16 | 160
+-----------+-------------+---------+------+------------+----
123 14 4 70 103 | 314
FTP Result
accepted or
no tcp/ftp unreachable refused dead accepted+
+-----------+-------------+---------+------+------------+
C tcp/ftp | 14 | 6 | 1 | 26 | 60 | 107
l +-----------+-------------+---------+------+------------+
a tcp | 11 | 0 | 2 | 4 | 7 | 24
i +-----------+-------------+---------+------+------------+
m Nothing | 104 | 8 | 8 | 40 | 23 | 183
+-----------+-------------+---------+------+------------+----
129 14 11 70 90 | 314
Page 1
SMTP Result
no tcp/smtp unreachable refused dead accepted
+-----------+-------------+---------+------+------------+
C tcp/smtp | 6 | 6 | 1 | 26 | 57 | 96
l +-----------+-------------+---------+------+------------+
a tcp | 12 | 0 | 3 | 4 | 5 | 24
i +-----------+-------------+---------+------+------------+
m Nothing | 113 | 8 | 13 | 40 | 20 | 194
+-----------+-------------+---------+------+------------+----
131 14 17 70 82 | 314
Results in alphabetical order:
Name Address Claims Telnet FTP SMTP
---- ------- ------ ------ --- ----
acc 10.2.0.54 ----
ada-vax 10.0.0.52 ---- refused refused accepted
aerospace 10.2.0.65 T---
afgl 10.1.0.66 ---- d e a d
afsc-ad 10.0.0.53 T--- accepted accepted
afsc-dev 10.2.0.53 ----
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--- d e a d
anl 10.0.0.55 ----
anl-mcs 10.1.0.55 ---- d e a d
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
bbnccf 3.0.0.4 -tfs accepted accepted accepted
bbncci 3.3.0.4 -tfs accepted accepted accepted
bbnf 10.0.0.5 -tf- accepted accepted accepted
bbng 10.1.0.5 -tf- accepted accepted accepted
Page 2
bbnp 10.2.0.72 -tfs accepted accepted accepted
bbnq 3.2.0.7 -tfs accepted accepted accepted
bbns 10.3.0.82 -tfs accepted accepted accepted
bbnt 3.3.0.7 -tfs accepted accepted accepted
bbnw 3.3.0.6 -tfs accepted accepted accepted
bbnx 3.0.0.8 -tfs accepted accepted accepted
bbny 3.2.0.8 -tfs accepted accepted accepted
bnl 10.1.0.58 ----
bragg-sta1 10.1.0.38 -t--
brl 10.0.0.29 ----
brl-bmd 10.3.0.29 ----
cca-unix 10.0.0.31 ---- accepted accepted accepted
cca-vms 10.1.0.31 T--- accepted accepted accepted
cctc 10.0.0.20 -t--
centacs-mmp 10.0.0.60 ---- d e a d
centacs-tf 10.3.0.60 ---- d e a d
cincpacflt-wm 10.1.0.36 ----
cit-20 10.0.0.54 T--- accepted accepted accepted
cit-vax 10.1.0.54 T--- accepted accepted accepted
clarksburg-expak 8.0.0.4 ---- u n r e a c h a b l e
clarksburg-monitor 8.0.0.44 ---- u n r e a c h a b l e
cmu 128.2.254.255 ---s d e a d
cmu-cs-a 10.1.0.14 ----
cmu-cs-b 10.0.0.14 ---- d e a d
cmu-cs-c 10.3.0.14 ----
cmu-cs-cad 128.2.254.133 -tfs accepted accepted accepted
cmu-cs-g 128.2.254.132 -tfs accepted accepted accepted
cmu-cs-gandalf 128.2.254.140 -tfs accepted accepted accepted
cmu-cs-ius 128.2.254.128 -tfs accepted accepted accepted
cmu-cs-j 128.2.254.144 -tfs d e a d
cmu-cs-k 128.2.254.136 -tfs d e a d
cmu-cs-ps 128.2.254.130 ---- d e a d
cmu-cs-speech 128.2.254.145 -tfs accepted accepted
cmu-cs-spice 128.2.254.139 -tfs accepted accepted accepted
cmu-cs-vlsi 128.2.254.129 -tfs accepted accepted accepted
cmu-cs-zog 128.2.254.131 -tfs accepted accepted accepted
cmu-ri-fas 128.2.254.138 -tfs accepted refused accepted
cmu-ri-isl 128.2.254.143 -tfs d e a d
cmu-ri-leg 128.2.254.141 -tfs d e a d
coins-gateway 10.1.0.57 ----
coins-tas 10.0.0.36 ---- d e a d
collins-pr 10.0 .0.46 T---
cornell 10.3.0.96 -tfs accepted accepted accepted
csnet-cic 3.0.0.14 -tfs d e a d
csnet-purdue 10.2.0.37 -tfs u n r e a c h a b l e
csnet-sh 192.5.2.3 T--- accepted accepted+ accepted
dcn1 128.4.0.1 -tfs accepted accepted+ accepted
dcn2 128.4.0.2 -tfs d e a d
dcn3 128.4.0.3 -tfs accepted accepted+ accepted
dcn4 128.4.0.4 -tfs d e a d
dcn5 128.4.0.5 -tfs u n r e a c h a b l e
dcn6 128.4.0.6 -tfs accepted accepted+ accepted
dcn7 128.4.0.7 -tfs d e a d
dcn8 128.4.0.8 -tfs d e a d
dcn9 128.4.0.9 -tfs d e a d
Page 3
dec-2136 10.0.0.79 T--- accepted refused refused
dec-marlboro 10.1.0.79 T---
dfvlr1 128.7.0.1 -tfs u n r e a c h a b l e
dfvlr2 128.7.0.2 -tfs u n r e a c h a b l e
dfvlr3 128.7.0.3 -tfs u n r e a c h a b l e
dfvlr7 128.7.0.7 -tfs u n r e a c h a b l e
dti 10.1.0.12 ---- d e a d
dti-vms 10.0.0.12 ---s accepted accepted accepted
dtnsrdc 10.1.0.81 ----
edn-host1 21.1.0.1 -tfs accepted accepted
edn-unix 10.3.0.20 -tfs accepted
etac 10.0.0.59 ----
etam-expak 4.0.0.1 ----
etam-monitor 4.0.0.41 ----
fnoc 10.1.0.33 ---- d e a d
fnoc-secure 10.3.0.33 ---- d e a d
ford-ecc 128.5.0.11 -tfs d e a d
ford-eed 128.5.0.14 -tfs accepted accepted+ accepted
ford-ers 128.5.0 .13 -tfs accepted accepted+ accepted
ford-foe 128.5.0.15 -tfs d e a d
ford-lab 128.5.0.8 -tfs accepted accepted+ accepted
ford-res 128.5.0.10 -tfs d e a d
ford-srl 128.5.0.12 -tfs d e a d
ford-vax 128.5.0.9 -tfs d e a d
ford-wdl1 128.5.32.1 -tfs accepted accepted accepted
ford-wdl2 128.5.32.2 -tfs d e a d
ford-wdl3 128.5.32.3 -tfs d e a d
ford-wdl4 128.5.32.4 -tfs d e a d
ford-wdl5 128.5.32.5 -tfs d e a d
ford-wdl6 128.5.32.6 -t-- accepted accepted accepted
ford1 128.5.0.1 -tfs accepted accepted+ accepted
ford2 128.5.0.2 -tfs accepted accepted+ accepted
ford3 128.5.0.3 -tfs accepted accepted+ accepted
ford4 128.5.0.4 -tfs d e a d
fucino 4.0.0.88 ----
fucino-expak 4.0.0.95 ----
fucino-monitor 4.0.0.94 ----
goonhilly-expak 4.0.0.2 ----
goonhilly-monitor 4.0.0.42 ----
gunter-adam 10.1.0.13 ---- accepted accepted accepted
gunter-unix 10.0.0.13 ----
harv-10 10.0.0.9 ----
hi-multics 10.0.0.80 ----
isi-png11 10.1.0.27 ----
isi-speech11 10.0.0.22 ----
isi-vaxa 10.2.0.27 -t-- accepted accepted accepted
jpl-vax 10.3.0.54 ---- d e a d
kestrel 10.3.0.32 ----
lbl 10.0.0.34 ----
lbl-csam 10.1.0.34 ---s accepted refused accepted
ll 10.0.0.10 ---- d e a d
ll-11 10.3.0.10 ----
ll-asg 10.1.0.44 ---- d e a d
ll-iptcp 10.3.44.10 T---
ll-tcp 10.1.0.10 T--- d e a d
Page 4
ll-xn 10.2.0.10 ----
lll-mfe 10.1.0.21 ----
lll-unix 10.0.0.21 ----
logicon 10.2.0.3 ---- d e a d
martin 10.3.0.53 ---- d e a d
martin-b 10.1.0.64 ----
mcclellan 10.3.0.78 ---- d e a d
mit-ai 10.2.0.6 ----
mit-ajax 18.10.0.64 -tf- accepted accepted accepted
mit-cls 18.10.0.76 -tfs
mit-csr 18.10.0.8 ---s accepted accepted
mit-devmultics 10.3.0.31 -t-s d e a d
mit-dms 10.1.0.6 ----
mit-mc 10.3.0.44 ----
mit-ml 10.3.0.6 ----
mit-multics 10.0.0.6 -t-s
mit-tstgw 10.2.0.44 T--- d e a d
mit-xx 10.0.0.44 ---- accepted accepted+ refused
mitre 10.0.0.17 T---
mitre-bedford 10.0.0.66 ----
nadc 10.2.0.24 ----
nalcon 10.0.0.81 ---- d e a d
nbs-pl 10.3.0.19 ---- d e a d
nbs-sdc 10.1.0.19 ----
nbs-unix 10.2.0.19 ----
nbs-vms 10.0.0.19 ----
ncsc 10.1.0.53 ---- d e a d
ndre1 48.3.1.41 -tfs accepted accepted+ accepted
nems 10.3.0.81 -tfs accepted accepted accepted
nlm-mcs 10.0.0.88 ----
nosc-cc 10.0.0.3 ---- accepted accepted refused
nosc-sdl 10.1.0.35 ---- d e a d
nosc-secure2 10.0.0.35 ----
nosc-secure3 10.3.0.35 ---- d e a d
nosc-spel 10.1.0.3 ---- d e a d
nprdc 10.3.0.3 ---- d e a d
nps 10.0.0.33 T---
nrl 10.0.0.8 ---- d e a d
nrl-aic 10.1.0.8 T--- accepted accepted accepted
nrl-css 10.7.0.8 ---- accepted accepted accepted
nrl-tops10 10.3.0.8 ----
nswc-dl 10.0.0.84 ---- accepted accepted
nswc-wo 10.2.0.8 ---- d e a d
nusc 10.3.0.92 ----
nusc-npt 10.2.0.92 ----
nwc-387a 10.0.0.85 ----
nwc-387b 10.3.0.85 ----
nwc-elf 10.1.0.85 ---- u n r e a c h a b l e
nyu 10.0.0.58 ----
office-1 10.0.0.43 T---
office-10 10.1.0.93 -tf- d e a d
office-12 10.2.0.93 T--- d e a d
office-2 10.1.0.43 T---
office-3 10.2.0.43 T--- accepted refused refused
office-7 10.3.0.43 -t-- accepted refused refused
Page 5
office-8 10.0.0.93 ----
okc-unix 10.3.0.46 ---- accepted
parc-maxc 10.0.0.32 ----
pent-unix 10.3.0.26 ---- u n r e a c h a b l e
purdue 10.0.0.37 -tfs accepted accepted accepted
purdue-tn 14.0.0.1 -tfs accepted accepted accepted
radc-multics 10.0.0.18 ----
radc-tops20 10.3.0.18 ----
radc-unix 10.5.0.18 ---- d e a d
radc-xper 10.1.0.18 ---- d e a d
raisting 4.0.0.72 ----
raisting-expak 4.0.0.79 ----
raisting-monitor 4.0.0.78 ----
rand-relay 10.1.0.7 ----
rand-unix 10.3.0.7 ----
robins-unix 10.3.0.64 ---- d e a d
rochester 10.4.0.18 ----
rutgers 10.2.0.58 ---- accepted accepted+ accepted
s1-a 10.1.0.95 ----
s1-b 10.2.0.95 ---- d e a d
s1-c 10.3.0.95 ---- accepted accepted accepted
s1-gateway 10.0.0.95 ----
sandia 10.0.0.87 ----
satnet 4.0.0.0 ----
satnet-sink 4.0.0.37 ----
seismo 10.0.0.25 ---- accepted accepted accepted
src-ccp 10.0.0.39 ---- u n r e a c h a b l e
src-nep 10.2.0.39 ---- u n r e a c h a b l e
src-unix 10.1.0.39 ---- u n r e a c h a b l e
sri-ai 10.2.0.73 ----
sri-csl 10.2.0.2 ----
sri-iu 10.3.0.73 ---- refused refused refused
sri-kl 10.1.0.2 ----
sri-nic 10.0.0.73 -t-- accepted refused refused
sri-nsc11 10.0.0.2 ----
sri-prmh 10.3.2.51 T--- accepted accepted refused
sri-sta2 10.3.1.51 ----
sri-sta6 10.1.1.51 ----
sri-tsc 10.3.0.2 -tfs accepted accepted+
sri-unix 10.2.0.51 ----
sri-warf 10.1.0.73 ----
srijoyce 10.1.4.51 -tf- accepted accepted refused
st-nic 10.0.0.51 -t--
su-ai 10.0.0.11 ----
su-dsn 10.1.0.56 ----
su-score 10.3.0.11 -t-- accepted accepted+ refused
sumex-aim 10.0.0.56 ---- d e a d
tanum-expak 4.0.0.3 ----
tanum-monitor 4.0.0.43 ----
tycho 10.0.0.57 ---- d e a d
ucb-arpa 10.0.0.78 -tf-
ucb-c70 10.1.0.78 ----
ucb-ingres 10.2.0.78 -tf- accepted accepted refused
ucbarpa 46.0.0.4 -tf- accepted accepted accepted
ucbcad 46.0.0.5 -tf-
Page 6
ucbcalder 46.0.0.12 -tf-
ucbernie 46.0.0.6 -tf-
ucbmatisse 46.0.0.14 -tf-
ucbesvax 46.0.0.9 -tf-
ucbdali 46.0.0.13 -tf-
ucbkim 46.0.0.11 -tf-
ucbingres 46.0.0.19 -tf-
ucbmedea 46.0.0.15 -tf- accepted accepted
ucbmonet 46.0.0.7 -tf- accepted accepted refused
ucbvax 46.0.0.10 -tf-
ucl-cs 11.3.1.42 -t-- accepted
ucl-ucl2 11.3.2.42 ---- accepted
ucl-ucl3 11.3.3.42 ---- d e a d
ucl-ucl4 11.3.4.42 ----
ucl-ucl5 11.3.5.42 ----
ucl-ucl6 11.3.6.42 ---- d e a d
ucl-ucl7 11.3.7.42 ---- d e a d
ucla-ats 10.0.0.1 ---- d e a d
ucla-ccn 10.1.0.1 T--- accepted
ucla-locus 10.3.0.1 ---- accepted accepted accepted
ucla-security 10.2.0.1 ---- d e a d
udel-ee 10.2.0.96 -tf- accepted accepted accepted
udel-relay 10.0.0.96 ---- d e a d
udel-tcp 10.1.0.96 -tf- accepted accepted refused
udel-tn 14.0.0.3 -tfs
umd1 128.8.0.1 -tfs accepted accepted+ accepted
umd2 128.8.0.2 -t-- refused refused refused
umd3 128.8.0.3 -tfs accepted accepted+ accepted
umd4 128.8.0.4 -tfs d e a d
umd5 128.8.0.5 -tfs d e a d
umd6 128.8.0.6 -tfs d e a d
umd7 128.8.0.7 -tfs d e a d
usafa-gateway 10.2.0.69 ---- d e a d
usc-ecl 10.3.0.23 -t-- accepted accepted+ accepted
usc-eclb 10.0.0.23 -t-- accepted accepted+ accepted
usc-eclc 10.1.0.23 -t-- accepted accepted+ accepted
usc-isi 10.1.0.22 -t-s accepted accepted+ accepted
usc-isib 10.3.0.52 -t-s accepted accepted+ accepted
usc-isid 10.0.0.27 -t-s refused accepted accepted
usc-isie 10.1.0.52 -t-s accepted accepted+ accepted
usc-isif 10.2.0.52 -t-s accepted accepted+ accepted
usgs1-amdahl 10.2 .0.68 ----
usgs1-multics 10.0.0.68 ----
usgs2-multics 10.0.0.69 ----
usgs3-multics 10.0.0.70 ----
utah-20 10.3.0.4 T---
utah-cs 10.0.0.4 -tfs accepted accepted refused
utexas-11 10.0.0.62 ----
utexas-20 10.1.0.62 ----
uw-vlsi 10.3.0.91 -tf- d e a d
uwisc-tn 14.0.0.2 -tfs accepted accepted+ accepted
washington 10.0.0.91 ----
wharton-10 10.3.0.24 ----
wpafb 10.0.0.47 ---- accepted accepted
wpafb-afwal 10.1.0.47 ----
yale 10.2.0.9 ----
ypg 10.0.0.75 ---- u n r e a c h a b l e
Results in host table order:
Name Address Claims Telnet FTP SMTP
---- ------- ------ ------ --- ----
ucla-ats 10.0.0.1 ---- d e a d
ll 10.0.0.10 ---- d e a d
su-ai 10.0.0.11 ----
dti-vms 10.0.0.12 ---s accepted accepted accepted
gunter-unix 10.0.0.13 ----
cmu-cs-b 10.0.0.14 ---- d e a d
ames-67 10.0.0.16 T--- d e a d
mitre 10.0.0.17 T---
radc-multics 10.0.0.18 ----
nbs-vms 10.0.0.19 ----
sri-nsc11 10.0.0.2 ----
cctc 10.0.0.20 -t--
lll-unix 10.0.0.21 ----
isi-speech11 10.0.0.22 ----
usc-eclb 10.0.0.23 -t-- accepted accepted+ accepted
seismo 10.0.0.25 ---- accepted accepted accepted
usc-isid 10.0.0.27 -t-s refused accepted accepted
arpa-dms 10.0.0.28 ----
brl 10.0.0.29 ----
nosc-cc 10.0.0.3 ---- accepted accepted refused
cca-unix 10.0.0.31 ---- accepted accepted accepted
parc-maxc 10.0.0.32 ----
nps 10.0.0.33 T---
lbl 10.0.0.34 ----
nosc-secure2 10.0.0.35 ----
coins-tas 10.0.0.36 ---- d e a d
purdue 10.0.0.37 -tfs accepted accepted accepted
src-ccp 10.0.0.39 ---- u n r e a c h a b l e
utah-cs 10.0.0.4 -tfs accepted accepted refused
office-1 10.0.0.43 T---
mit-xx 10.0.0.44 ---- accepted accepted+ refused
collins-pr 10.0.0.46 T---
wpafb 10.0.0.47 ---- accepted accepted
afwl 10.0.0.48 ----
bbnb 10.0.0.49 -t-- accepted refused refused
bbnf 10.0.0.5 -tf- accepted accepted accepted
st-nic 10.0.0.51 -t--
ada-vax 10.0.0.52 ---- refused refused accepted
afsc-ad 10.0.0.53 T--- accepted accepted
cit-20 10.0.0.54 T--- accepted accepted accepted
anl 10.0.0.55 ----
sumex-aim 10.0.0.56 ---- d e a d
tycho 10.0.0.57 ---- d e a d
nyu 10.0.0.58 ----
etac 10.0.0.59 ----
mit-multics 10.0.0.6 -t-s
centacs-mmp 10.0.0.60 ---- d e a d
utexas-11 10.0.0.62 ----
Page 8
mitre-bedford 10.0.0.66 ----
afsc-sd 10.0.0.65 ----
afsc-hq 10.0.0.67 ----
usgs1-multics 10.0.0.68 ----
usgs2-multics 10.0.0.69 ----
usgs3-multics 10.0.0.70 ----
bbn-nu 10.0.0.72 ---s
sri-nic 10.0.0.73 -t-- accepted refused refused
ypg 10.0.0.75 ---- u n r e a c h a b l e
ucb-arpa 10.0.0.78 -tf-
dec-2136 10.0.0.79 T--- accepted refused refused
nrl 10.0.0.8 ---- d e a d
hi-multics 10.0.0.80 ----
nalcon 10.0.0.81 ---- d e a d
nswc-dl 10.0.0.84 ---- accepted accepted
nwc-387a 10.0.0.85 ----
sandia 10.0.0.87 ----
nlm-mcs 10.0.0.88 ----
harv-10 10.0.0.9 ----
washington 10.0.0.91 ----
office-8 10.0.0.93 ----
s1-gateway 10.0.0.95 ----
udel-relay 10.0.0.96 ---- d e a d
ucla-ccn 10.1.0.1 T--- accepted
ll-tcp 10.1.0.10 T--- d e a d
dti 10.1.0.12 ---- d e a d
gunter-adam 10.1.0.13 ---- accepted accepted accepted
cmu-cs-a 10.1.0.14 ----
radc-xper 10.1.0.18 ---- d e a d
nbs-sdc 10.1.0.19 ----
sri-kl 10.1.0.2 ----
lll-mfe 10.1.0.21 ----
usc-isi 10.1.0.22 -t-s accepted accepted+ accepted
usc-eclc 10.1.0.23 -t-- accepted accepted+ accepted
isi-png11 10.1.0.27 ----
nosc-spel 10.1.0.3 ---- d e a d
cca-vms 10.1.0.31 T--- accepted accepted accepted
fnoc 10.1.0.33 ---- d e a d
lbl-csam 10.1.0.34 ---s accepted refused accepted
nosc-sdl 10.1.0.35 ---- d e a d
cincpacflt-wm 10.1.0.36 ----
bragg-sta1 10.1.0.38 -t--
src-unix 10.1.0.39 ---- u n r e a c h a b l e
office-2 10.1.0.43 T---
ll-asg 10.1.0.44 ---- d e a d
wpafb-afwal 10.1.0.47 ----
bbng 10.1.0.5 -tf- accepted accepted accepted
usc-isie 10.1.0.52 -t-s accepted accepted+ accepted
ncsc 10.1.0.53 ---- d e a d
cit-vax 10.1.0.54 T--- accepted accepted accepted
anl-mcs 10.1.0.55 ---- d e a d
su-dsn 10.1.0.56 ----
coins-gateway 10.1.0.57 ----
bnl 10.1.0.58 ----
Page 9
mit-dms 10.1.0.6 ----
utexas-20 10.1.0.62 ----
martin-b 10.1.0.64 ----
afgl 10.1.0.66 ---- d e a d
rand-relay 10.1.0.7 ----
sri-warf 10.1.0.73 ----
ucb-c70 10.1.0.78 ----
dec-marlboro 10.1.0.79 T---
nrl-aic 10.1.0.8 T--- accepted accepted accepted
dtnsrdc 10.1.0.81 ----
bbn-vax 10.1.0.82 -tfs accepted accepted accepted
nwc-elf 10.1.0.85 ---- u n r e a c h a b l e
office-10 10.1.0.93 -tf- d e a d
s1-a 10.1.0.95 ----
udel-tcp 10.1.0.96 -tf- accepted accepted refused
sri-sta6 10.1.1.51 ----
srijoyce 10.1.4.51 -tf- accepted accepted refused
ucla-security 10.2.0.1 ---- d e a d
ll-xn 10.2.0.10 ----
nbs-unix 10.2.0.19 ----
sri-csl 10.2.0.2 ----
nadc 10.2.0.24 ----
isi-vaxa 10.2.0.27 -t-- accepted accepted accepted
logicon 10.2.0.3 ---- d e a d
csnet-purdue 10.2.0.37 -tfs u n r e a c h a b l e
src-nep 10.2.0.39 ---- u n r e a c h a b l e
office-3 10.2.0.43 T--- accepted refused refused
mit-tstgw 10.2.0.44 T--- d e a d
sri-unix 10.2.0.51 ----
usc-isif 10.2.0.52 -t-s accepted accepted+ accepted
afsc-dev 10.2.0.53 ----
acc 10.2.0.54 ----
rutgers 10.2.0.58 ---- accepted accepted+ accepted
mit-ai 10.2.0.6 ----
aerospace 10.2.0.65 T---
usgs1-amdahl 10.2.0.68 ----
usafa-gateway 10.2.0.69 ---- d e a d
bbn-clxx 10.2.0.71 -tfs accepted accepted accepted
bbnp 10.2.0.72 -tfs accepted accepted accepted
sri-ai 10.2.0.73 ----
ucb-ingres 10.2.0.78 -tf- accepted accepted refused
nswc-wo 10.2.0.8 ---- d e a d
yale 10.2.0.9 ----
nusc-npt 10.2.0.92 ----
office-12 10.2.0.93 T--- d e a d
s1-b 10.2.0.95 ---- d e a d
udel-ee 10.2.0.96 -tf- accepted accepted accepted
ucla-locus 10.3.0.1 ---- accepted accepted accepted
ll-11 10.3.0.10 ----
su-score 10.3.0.11 -t-- accepted accepted+ refused
cmu-cs-c 10.3.0.14 ----
ames-11 10.3.0.16 ----
radc-tops20 10.3.0.18 ----
nbs-pl 10.3.0.19 ---- d e a d
sri-tsc 10.3.0.2 -tfs accepted accepted+
Page 10
usc-ecl 10.3.0.23 -t-- accepted accepted+ accepted
edn-unix 10.3.0.20 -tfs accepted
wharton-10 10.3.0.24 ----
pent-unix 10.3.0.26 ---- u n r e a c h a b l e
arpa-png11 10.3.0.28 ----
brl-bmd 10.3.0.29 ----
nprdc 10.3.0.3 ---- d e a d
mit-devmultics 10.3.0.31 -t-s d e a d
kestrel 10.3.0.32 ----
fnoc-secure 10.3.0.33 ---- d e a d
nosc-secure3 10.3.0.35 ---- d e a d
utah-20 10.3.0.4 T---
office-7 10.3.0.43 -t-- accepted refused refused
mit-mc 10.3.0.44 ----
okc-unix 10.3.0.46 ---- accepted
bbnc 10.3.0.49 -t-- accepted refused refused
bbna 10.3.0.5 -tf- accepted accepted accepted
sri-sta2 10.3.1.51 ----
sri-prmh 10.3.2.51 T--- accepted accepted refused
usc-isib 10.3.0.52 -t-s accepted accepted+ accepted
martin 10.3.0.53 ---- d e a d
jpl-vax 10.3.0.54 ---- d e a d
mit-ml 10.3.0.6 ----
centacs-tf 10.3.0.60 ---- d e a d
robins-unix 10.3.0.64 ---- d e a d
rand-unix 10.3.0.7 ----
sri-iu 10.3.0.73 ---- refused refused refused
mcclellan 10.3.0.78 ---- d e a d
nrl-tops10 10.3.0.8 ----
nems 10.3.0.81 -tfs accepted accepted accepted
bbns 10.3.0.82 -tfs accepted accepted accepted
nwc-387b 10.3.0.85 ----
uw-vlsi 10.3.0.91 -tf- d e a d
nusc 10.3.0.92 ----
s1-c 10.3.0.95 ---- accepted accepted accepted
cornell 10.3.0.96 -tfs accepted accepted accepted
ll-iptcp 10.3.44.10 T---
rochester 10.4.0.18 ----
bbn-rsm 10.4.0.82 -t-- accepted
radc-unix 10.5.0.18 ---- d e a d
bbn-noc2 10.6.0.82 -tfs accepted accepted accepted
nrl-css 10.7.0.8 ---- accepted accepted accepted
ucl-cs 11.3.1.42 -t-- accepted
ucl-ucl2 11.3.2.42 ---- accepted
ucl-ucl3 11.3.3.42 ---- d e a d
ucl-ucl4 11.3.4.42 ----
ucl-ucl5 11.3.5.42 ----
ucl-ucl6 11.3.6.42 ---- d e a d
ucl-ucl7 11.3.7.42 ---- d e a d
cmu-cs-ius 128.2.254.128 -tfs accepted accepted accepted
cmu-cs-vlsi 128.2.254.129 -tfs accepted accepted accepted
cmu-cs-ps 128.2.254.130 ---- d e a d
cmu-cs-zog 128.2.254.131 -tfs accepted accepted accepted
cmu-cs-g 128.2.254.132 -tfs accepted accepted accepted
cmu-cs-cad 128.2.254.133 -tfs accepted accepted accepted
Page 11
cmu-cs-k 128.2.254.136 -tfs d e a d
cmu-ri-fas 128.2.254.138 -tfs accepted refused accepted
cmu-cs-spice 128.2.254.139 -tfs accepted accepted accepted
cmu-cs-gandalf 128.2.254.140 -tfs accepted accepted accepted
cmu-ri-leg 128.2.254.141 -tfs d e a d
cmu-ri-isl 128.2.254.143 -tfs d e a d
cmu-cs-j 128.2.254.144 -tfs d e a d
cmu-cs-speech 128.2.254.145 -tfs accepted accepted
cmu 128.2.254.255 ---s d e a d
dcn1 128.4.0.1 -tfs accepted accepted+ accepted
dcn2 128.4.0.2 -tfs d e a d
dcn3 128.4.0.3 -tfs accepted accepted+ accepted
dcn4 128.4.0.4 -tfs d e a d
dcn5 128.4.0.5 -tfs u n r e a c h a b l e
dcn6 128.4.0.6 -tfs accepted accepted+ accepted
dcn7 128.4.0.7 -tfs d e a d
dcn8 128.4.0.8 -tfs d e a d
dcn9 128.4.0.9 -tfs d e a d
ford1 128.5.0.1 -tfs accepted accepted+ accepted
ford2 128.5.0.2 -tfs accepted accepted+ accepted
ford3 128.5.0.3 -tfs accepted accepted+ accepted
ford4 128.5.0.4 -tfs d e a d
ford-lab 128.5.0.8 -tfs accepted accepted+ accepted
ford-vax 128.5.0.9 -tfs d e a d
ford-res 128.5.0.10 -tfs d e a d
ford-ecc 128.5.0.11 -tfs d e a d
ford-srl 128.5.0.12 -tfs d e a d
ford-ers 128.5.0.13 -tfs accepted accepted+ accepted
ford-eed 128.5.0.14 -tfs accepted accepted+ accepted
ford-foe 128.5.0.15 -tfs d e a d
ford-wdl1 128.5.32.1 -tfs accepted accepted accepted
ford-wdl2 128.5.32.2 -tfs d e a d
ford-wdl3 128.5.32.3 -tfs d e a d
ford-wdl4 128.5.32.4 -tfs d e a d
ford-wdl5 128.5.32.5 -tfs d e a d
ford-wdl6 128.5.32.6 -t-- accepted accepted accepted
dfvlr1 128.7.0.1 -tfs u n r e a c h a b l e
dfvlr2 128.7.0.2 -tfs u n r e a c h a b l e
dfvlr3 128.7.0.3 -tfs u n r e a c h a b l e
dfvlr7 128.7.0.7 -tfs u n r e a c h a b l e
umd1 128.8.0.1 -tfs accepted accepted+ accepted
umd2 128.8.0.2 -t-- refused refused refused
umd3 128.8.0.3 -tfs accepted accepted+ accepted
umd4 128.8.0.4 -tfs d e a d
umd5 128.8.0.5 -tfs d e a d
umd6 128.8.0.6 -tfs d e a d
umd7 128.8.0.7 -tfs d e a d
purdue-tn 14.0.0.1 -tfs accepted accepted accepted
uwisc-tn 14.0.0.2 -tfs accepted accepted+ accepted
udel-tn 14.0.0.3 -tfs
mit-csr 18.10.0.8 ---s accepted accepted
mit-ajax 18.10.0.64 -tf- accepted accepted accepted
mit-cls 18.10.0.76 -tfs
csnet-sh 192.5.2.3 T--- accepted accepted+ accepted
edn-host1 21.1.0.1 -tfs accepted accepted
Page 12
bbncca 3.0.0.2 -tfs accepted accepted accepted
bbnccf 3.0.0.4 -tfs accepted accepted accepted
bbnx 3.0.0.8 -tfs accepted accepted accepted
csnet-cic 3.0.0.14 -tfs d e a d
bbn-noc 3.1.0.14 -tfs accepted accepted accepted
bbnccb 3.1.0.2 -tfs accepted accepted accepted
bbn-unix 3.1.0.4 -tfs accepted accepted accepted
alta-coma 3.1.0.50 T---
bbn-admin 3.1.0.6 -tfs accepted accepted accepted
bbnccc 3.2.0.2 -tfs accepted accepted accepted
bbn-inoc 3.2.0.6 -tfs accepted accepted accepted
bbnq 3.2.0.7 -tfs accepted accepted accepted
bbny 3.2.0.8 -tfs accepted accepted accepted
bbnccd 3.3.0.2 -tfs accepted accepted accepted
bbncci 3.3.0.4 -tfs accepted accepted accepted
bbnw 3.3.0.6 -tfs accepted accepted accepted
bbnt 3.3.0.7 -tfs accepted accepted accepted
bbn-cd 3.3.0.9 -tfs accepted accepted accepted
satnet 4.0.0.0 ----
etam-expak 4.0.0.1 ----
goonhilly-expak 4.0.0.2 ----
tanum-expak 4.0.0.3 ----
satnet-sink 4.0.0.37 ----
etam-monitor 4.0.0.41 ----
goonhilly-monitor 4.0.0.42 ----
tanum-monitor 4.0.0.43 ----
raisting 4.0.0.72 ----
raisting-monitor 4.0.0.78 ----
raisting-expak 4.0.0.79 ----
fucino 4.0.0.88 ----
fucino-monitor 4.0.0.94 ----
fucino-expak 4.0.0.95 ----
ucbarpa 46.0.0.4 -tf- accepted accepted accepted
ucbcad 46.0.0.5 -tf-
ucbernie 46.0.0.6 -tf-
ucbmonet 46.0.0.7 -tf- accepted accepted refused
ucbesvax 46.0.0.9 -tf-
ucbvax 46.0.0.10 -tf-
ucbkim 46.0.0.11 -tf-
ucbcalder 46.0.0.12 -tf-
ucbdali 46.0.0.13 -tf-
ucbmatisse 46.0.0.14 -tf-
ucbmedea 46.0.0.15 -tf- accepted accepted
ucbingres 46.0.0.19 -tf-
ndre1 48.3.1.41 -tfs accepted accepted+ accepted
clarksburg-expak 8.0.0.4 ---- u n r e a c h a b l e
clarksburg-monitor 8.0.0.44 ---- u n r e a c h a b l e
Page 13
Who talks TCP?
RFC TOTAL SIZE: 42973 bytes
PUBLICATION DATE: Wednesday, September 23rd, 1992
LEGAL RIGHTS: The IETF Trust (see BCP 78)
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