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1 April RFC



IETF RFC 834

Who talks TCP?

Last modified on Wednesday, September 23rd, 1992

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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 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 bbnp 10.2.0.72 -tfs accepted accepted accepted Page 2

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 ---- cca-vms 10.1.0.31 T--- accepted accepted accepted cctc 10.0.0.20 -t-- centacs-mmp 10.0.0.60 ---- u n r e a c h a b l e centacs-tf 10.3.0.60 ---- u n r e a c h a b l e 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 ---- accepted accepted accepted cmu-cs-b 10.0.0.14 ---- cmu-cs-c 10.3.0.14 ---- cmu-cs-cad 128.2.254.133 -tfs accepted accepted cmu-cs-g 128.2.254.132 -tfs accepted refused accepted cmu-cs-gandalf 128.2.254.140 -tfs accepted refused accepted cmu-cs-ius 128.2.254.128 -tfs accepted refused 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 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 ---- collins-pr 10.0.0.46 T--- cornell 10.3.0.96 -tfs u n r e a c h a b l e csnet-cic 3.0.0.14 -tfs d e a d csnet-purdue 10.2.0.37 -tfs accepted accepted accepted 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 accepted accepted+ accepted dcn3 128.4.0.3 -tfs u n r e a c h a b l e dcn4 128.4.0.4 -tfs d e a d dcn5 128.4.0.5 -tfs accepted accepted+ accepted 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 dec-2136 10.0.0.79 T--- accepted refused refused Page 3

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 ---- 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 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 ---- ford-ecc 128.5.0.11 -tfs u n r e a c h a b l e 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 u n r e a c h a b l e ford-lab 128.5.0.8 -tfs accepted accepted+ accepted ford-res 128.5.0.10 -tfs u n r e a c h a b l e ford-srl 128.5.0.12 -tfs u n r e a c h a b l e ford-vax 1 u n r e a c h a b l e 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 u n r e a c h a b l e 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 ---- u n r e a c h a b l e kestrel 10.3.0.32 ---- lbl 10.0.0.34 ---- lbl-csam 10.1.0.34 ---s ll 10.0.0.10 ---- 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 ll-xn 10.2.0.10 ---- Page 4

lll-mfe 10.1.0.21 ---- lll-unix 10.0.0.21 ---- d e a d logicon 10.2.0.3 ---- d e a d martin 10.3.0.53 ---- martin-b 10.1.0.64 ---- accepted accepted accepted mcclellan 10.3.0.78 ---- u n r e a c h a b l e mit-ai 10.2.0.6 ---- d e a d 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 ---- d e a d 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 ---- nbs-pl 10.3.0.19 ---- 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 ---- accepted accepted accepted nosc-cc 10.0.0.3 ---- accepted accepted accepted nosc-sdl 10.1.0.35 ---- nosc-secure2 10.0.0.35 ---- nosc-secure3 10.3.0.35 ---- u n r e a c h a b l e nosc-spel 10.1.0.3 ---- d e a d nprdc 10.3.0.3 ---- accepted accepted accepted nps 10.0.0.33 T--- nrl 10.0.0.8 ---- nrl-aic 10.1.0.8 T--- nrl-css 10.7.0.8 ---- accepted accepted refused nrl-tops10 10.3.0.8 ---- nswc-dl 10.0.0.84 ---- nswc-wo 10.2.0.8 ---- nusc 10.3.0.92 ---- u n r e a c h a b l e nusc-npt 10.2.0.92 ---- nwc-387a 10.0.0.85 ---- accepted accepted accepted nwc-387b 10.3.0 .85 ---- u n r e a c h a b l e 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- accepted refused refused 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-- refused refused refused office-8 10.0.0.93 ---- accepted refused refused okc-unix 10.3.0.46 ---- u n r e a c h a b l e Page 5

parc-maxc 10.0.0.32 ---- pent-unix 10.3.0.26 ---- u n r e a c h a b l e purdue 128.10.0.1 -tfs accepted accepted accepted purdue-tn 14.0.0.1 -tfs u n r e a c h a b l e radc-multics 10.0.0.18 ---- radc-tops20 10.3.0.18 ---- accepted refused refused radc-unix 10.5.0.18 ---- 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 ---- u n r e a c h a b l e 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 ---- accepted accepted+ accepted 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 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-- accepted refused refused su-ai 10.0.0.11 ---- su-dsn 10.1.0.56 ---- su-score 10.3.0.11 -t-- sumex-aim 10.0.0.56 ---- tanum-expak 4.0.0.3 ---- tanum-monitor 4.0.0.43 ---- tycho 10.0.0.57 ---- ucb-arpa 10.0.0.78 -tf- accepted accepted accepted ucb-c70 10.1.0.78 ---- ucb-ingres 10.2.0.78 -tf- d e a d ucbarpa 46.0.0.4 -tf- d e a d ucbcad 46.0.0.5 -tf- d e a d ucbcalder 46.0.0.12 -tf- d e a d ucbdali 46.0.0.13 -tf- d e a d ucbernie 46.0.0.6 -tf- d e a d Page 6

ucbesvax 46.0.0.9 -tf- d e a d ucbingres 46.0.0.19 -tf- d e a d ucbkim 46.0.0.11 -tf- d e a d ucbmatisse 46.0.0.14 -tf- d e a d ucbmedea 46.0.0.15 -tf- d e a d ucbmonet 46.0.0.7 -tf- d e a d ucbvax 46.0.0.10 -tf- d e a d ucl-cs 11.3.1.42 -t-- accepted ucl-ucl2 11.3.2.42 ---- accepted refused ucl-ucl3 11.3.3.42 ---- d e a d ucl-ucl4 11.3.4.42 ---- d e a d ucl-ucl5 11.3.5.42 ---- d e a d 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 ---- udel-ee 10.2.0.96 -tf- accepted accepted accepted udel-relay 10.0.0.96 ---- udel-tcp 10.1.0.96 -tf- accepted accepted accepted udel-tn 14.0.0.3 -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 accepted accepted+ accepted 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 refused refused 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 accepted 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--- accepted accepted+ refused 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- u n r e a c h a b l e uwisc-tn 14.0.0.2 -tfs u n r e a c h a b l e washington 10.0.0.91 ---- wharton-10 10.3.0.24 ---- wpafb 10.0.0.47 ---- 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 Page 7

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 ---- 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 ---- ames-67 10.0.0.16 T--- 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 ---- d e a d 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 accepted accepted+ accepted arpa-dms 10.0.0.28 ---- brl 10.0.0.29 ---- nosc-cc 10.0.0.3 ---- accepted accepted accepted cca-unix 10.0.0.31 ---- 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 ---- 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 ---- 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-- accepted refused refused ada-vax 10.0.0.52 ---- afsc-ad 10.0.0.53 T--- cit-20 10.0.0.54 T--- accepted accepted accepted anl 10.0.0.55 ---- sumex-aim 10.0.0.56 ---- tycho 10.0.0.57 ---- nyu 10.0.0.58 ---- etac 10.0.0.59 ---- mit-multics 10.0.0.6 -t-s centacs-mmp 10.0.0.60 ---- u n r e a c h a b l e utexas-11 10.0.0.62 ---- afsc-sd 10.0.0.65 ---- mitre-bedford 10.0.0.66 ---- afsc-hq 10.0.0.67 ---- Page 8

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- accepted accepted accepted dec-2136 10.0.0.79 T--- accepted refused refused nrl 10.0.0.8 ---- hi-multics 10.0.0.80 ---- nalcon 10.0.0.81 ---- nswc-dl 10.0.0.84 ---- nwc-387a 10.0.0.85 ---- accepted accepted accepted sandia 10.0.0.87 ---- nlm-mcs 10.0.0.88 ---- accepted accepted accepted harv-10 10.0.0.9 ---- washington 10.0.0.91 ---- office-8 10.0.0.93 ---- accepted refused refused s1-gateway 10.0.0.95 ---- udel-relay 10.0.0.96 ---- ucla-ccn 10.1.0.1 T--- accepted ll-tcp 10.1.0.10 T--- d e a d dti 10.1.0.12 ---- gunter-adam 10.1.0.13 ---- accepted accepted+ accepted cmu-cs-a 10.1.0.14 ---- accepted accepted accepted 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 refused refused 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 nosc-sdl 10.1.0.35 ---- 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 ---- su-dsn 10.1.0.56 ---- coins-gateway 10.1.0.57 ---- bnl 10.1.0.58 ---- mit-dms 10.1.0.6 ---- d e a d utexas-20 10.1.0.62 ---- martin-b 10.1.0.64 ---- accepted accepted accepted afgl 10.1.0.66 ---- Page 9

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--- 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- accepted refused refused s1-a 10.1.0.95 ---- udel-tcp 10.1.0.96 -tf- accepted accepted accepted sri-sta6 10.1.1.51 ---- srijoyce 10.1.4.51 -tf- accepted accepted refused ucla-security 10.2.0.1 ---- 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 accepted accepted accepted 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 ---- accepted accepted acc 10.2.0.54 ---- rutgers 10.2.0.58 ---- accepted accepted+ accepted mit-ai 10.2.0.6 ---- d e a d aerospace 10.2.0.65 T--- d e a d 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- d e a d nswc-wo 10.2.0.8 ---- 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-- cmu-cs-c 10.3.0.14 ---- ames-11 10.3.0.16 ---- radc-tops20 10.3.0.18 ---- accepted refused refused nbs-pl 10.3.0.19 ---- sri-tsc 10.3.0.2 -tfs edn-unix 10.3.0.20 -tfs accepted accepted usc-ecl 10.3.0.23 -t-- accepted accepted+ accepted wharton-10 10.3.0.24 ---- pent-unix 10.3.0.26 ---- u n r e a c h a b l e Page 10

arpa-png11 10.3.0.28 ---- brl-bmd 10.3.0.29 ---- nprdc 10.3.0.3 ---- accepted accepted accepted mit-devmultics 10.3.0.31 -t-s d e a d kestrel 10.3.0.32 ---- fnoc-secure 10.3.0.33 ---- nosc-secure3 10.3.0.35 ---- u n r e a c h a b l e utah-20 10.3.0.4 T--- accepted accepted+ refused office-7 10.3.0.43 -t-- refused refused refused mit-mc 10.3.0.44 ---- okc-unix 10.3.0.46 ---- u n r e a c h a b l e 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 ---- jpl-vax 10.3.0.54 ---- u n r e a c h a b l e mit-ml 10.3.0.6 ---- centacs-tf 10.3.0.60 ---- u n r e a c h a b l e robins-unix 10.3.0.64 ---- u n r e a c h a b l e rand-unix 10.3.0.7 ---- sri-iu 10.3.0.73 ---- accepted accepted+ accepted mcclellan 10.3.0.78 ---- u n r e a c h a b l e 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 ---- u n r e a c h a b l e uw-vlsi 10.3.0.91 -tf- u n r e a c h a b l e nusc 10.3.0.92 ---- u n r e a c h a b l e s1-c 10.3.0.95 ---- accepted accepted accepted cornell 10.3.0.96 -tfs u n r e a c h a b l e 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 ---- bbn-noc2 10.6.0.82 -tfs accepted accepted accepted nrl-css 10.7.0.8 ---- accepted accepted refused ucl-cs 11.3.1.42 -t-- accepted ucl-ucl2 11.3.2.42 ---- accepted refused ucl-ucl3 11.3.3.42 ---- d e a d ucl-ucl4 11.3.4.42 ---- d e a d ucl-ucl5 11.3.5.42 ---- d e a d 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 refused 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 refused accepted cmu-cs-cad 128.2.254.133 -tfs accepted accepted 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 refused accepted Page 11

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 cmu 128.2.254.255 ---s d e a d purdue 128.10.0.1 -tfs accepted accepted accepted dcn1 128.4.0.1 -tfs accepted accepted+ accepted dcn2 128.4.0.2 -tfs accepted accepted+ accepted dcn3 128.4.0.3 -tfs u n r e a c h a b l e dcn4 128.4.0.4 -tfs d e a d dcn5 128.4.0.5 -tfs accepted accepted+ accepted 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 u n r e a c h a b l e ford-lab 128.5.0.8 -tfs accepted accepted+ accepted ford-vax 128.5.0.9 -tfs u n r e a c h a b l e ford-res 128.5.0.10 -tfs u n r e a c h a b l e ford-ecc 128.5.0.11 -tfs u n r e a c h a b l e ford-srl 128.5.0.12 -tfs u n r e a c h a b l e 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 u n r e a c h a b l e ford-wdl1 128.5.32.1 -tfs u n r e a c h a b l e ford-wdl2 128.5.32.2 -tfs u n r e a c h a b l e ford-wdl3 128.5.32.3 -tfs u n r e a c h a b l e ford-wdl4 128.5.32.4 -tfs u n r e a c h a b l e ford-wdl5 128.5.32.5 -tfs u n r e a c h a b l e ford-wdl6 128.5.32.6 -t-- u n r e a c h a b l e 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 accepted accepted+ accepted 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 u n r e a c h a b l e uwisc-tn 14.0.0.2 -tfs u n r e a c h a b l e udel-tn 14.0.0.3 -tfs u n r e a c h a b l e 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 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 Page 12

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- d e a d ucbcad 46.0.0.5 -tf- d e a d ucbernie 46.0.0.6 -tf- d e a d ucbmonet 46.0.0.7 -tf- d e a d ucbesvax 46.0.0.9 -tf- d e a d ucbvax 46.0.0.10 -tf- d e a d ucbkim 46.0.0.11 -tf- d e a d ucbcalder 46.0.0.12 -tf- d e a d ucbdali 46.0.0.13 -tf- d e a d ucbmatisse 46.0.0.14 -tf- d e a d ucbmedea 46.0.0.15 -tf- d e a d ucbingres 46.0.0.19 -tf- d e a d 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: 42764 bytes PUBLICATION DATE: Wednesday, September 23rd, 1992 LEGAL RIGHTS: The IETF Trust (see BCP 78)


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© RFC 834: The IETF Trust, Wednesday, September 23rd, 1992
© the RFC Archive, 2024, RFC-Archive.org
Maintainer: J. Tunnissen

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