Network Working Group R. Clements
Request for Comments: 844 February 1983
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Who Talks ICMP, too? Survey of 18 February 1983
A survey was undertaken to determine how many hosts are able to respond to TELNET connections from a user at a class C site. This requires, in addition to IP and TCP, participation in gateway routing via ICMP and handling of class C addresses.
The list of hosts was taken from RFC843, extracting only those
hosts which are listed there as accepting TELNET connections.
The tests were run on 18-Feb-83 from 3 PM to 6:30 PM EST
from a terminal concentrator located at 192.1.2.22, at BBN.
This net (192.1.2.xxx) is connected to the internet through
a routing gateway, and this terminal concentrator speaks ICMP
including redirection and reporting to the user.
The connection attempts were done manually by typing the dotted form addresses, so only three passes were made through the table of hosts. Therefore a few may have been missed due to being down at these times.
Summary information:
Type # OK ut of OK
---- ---- ----- ----
On net 10 77 21 3.6% other class A 20 4 8.8% non-class A 30 2 3.8%
Total 127 87 7.9%
Name Address Result ---- ------- ------ ll 10.0.0.10 no response compion-vms 10.0.0.12 no response ames-tss 10.0.0.16 refused mitre 10.0.0.17 OK radc-multics 10.0.0.18 OK nbs-vms 10.0.0.19 no response usc-eclb 10.0.0.23 OK nadc 10.0.0.24 OK seismo 10.0.0.25 OK usc-isid 10.0.0.27 OK brl 10.0.0.29 no response nosc-cc 10.0.0.3 OK cca-unix 10.0.0.31 OK parc-maxc 10.0.0.32 OK purdue 10.0.0.37 OK utah-cs 10.0.0.4 host unreachable wpafb 10.0.0.47 no response afwl 10.0.0.48 no response bbn-tenexb 10.0.0.49 OK bbnf 10.0.0.5 OK ada-vax 10.0.0.52 no response afsc-ad 10.0.0.53 no response cit-20 10.0.0.54 OK sumex-aim 10.0.0.56 OK nyu 10.0.0.58 no response mit-multics 10.0.0.6 OK utexas-11 10.0.0.62 OK usgs1-multics 10.0.0.68 OK usgs2-multics 10.0.0.69 OK usgs3-multics 10.0.0.70 OK sri-nic 10.0.0.73 OK ucb-arpa 10.0.0.78 no response nrl 10.0.0.8 no response hi-multics 10.0.0.80 OK dtnsrdc 10.0.0.81 OK bbnt 10.0.0.82 OK nswc-dl 10.0.0.84 OK sandia 10.0.0.87 OK nlm-mcs 10.0.0.88 OK lanl-unix 10.0.0.90 OK washington 10.0.0.91 OK