Pingable IPs on backbones?
Christopher A. Woodfield
rekoil at semihuman.com
Tue Jan 30 21:45:36 UTC 2001
I just had one of those "duh" experiences today, and it made me think a
bit...
At my job at <vijay> a promising local ISP </vijay>, I was turning up a
customer, who decided to test his connectivity by trying to ping and trace
to www.sprint.net and www.uu.net. As it turns out, both servers are behind
firewalls, that block ICMP and UDP, so you can't ping or trace to either
server. But then my customer asked me, "OK, can you give me a hostname in
UU's netspace that I CAN ping?" It took some thought and experimentation
to find one (mail.uu.net and ns1.sprint.net, in case anyone wants to
know).
What this brought to mind was this question: would it be worth my time to
compile a list of pingable and traceable IPs that live on the major
backbones for connectivity testing and troubleshooting? I do wind up
seeing a lot of cloobies trying to ping a site, and assuming it's down
because IMCP-blocked.
Thoughts?
-C
---------------------------
Christopher A. Woodfield rekoil at semihuman.com
PGP Public Key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xB887618B
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