simple question as always..

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1

They seem to using access-list on their gateway routers. That would
explain your problem.

Mohamed

Dear nanog,

could someone explain to me why I can ping but traceroute
seems to have problem reaching it.

i.e.
ping -s auth3.ipass.com.
64 bytes from holmes.ipass.com (204.198.128.102): icmp_seq=0. time=352. ms

yet traceroute

...
6 s2/2-decker-hi.digisle.net (167.216.156.57) 147 ms 149 ms 148 ms
7 s2/2-decker-hi.digisle.net (167.216.156.57) 205 ms * 147 ms
8 * s2/2-decker-hi.digisle.net (167.216.156.57) 152 ms *
9 s2/2-decker-hi.digisle.net (167.216.156.57) 148 ms * 159 ms
10 * s2/2-decker-hi.digisle.net (167.216.156.57) 148 ms *
11 s2/2-decker-hi.digisle.net (167.216.156.57) 177 ms * 161 ms
...

thnx in adv.

tatsuya

= = = = = =
BEEOCB 03-3239-0607 fax 03-3239-2609
business network telecom
http://www.giganet.net

2

Hello mhirse,

you mean using filtering traceroute?
Then why it seems to show that as if boucing it?

I was told once that traceroute required each router on the
way to KNOW something whereas ping does not.
I just can not recall what this something is and I am
intend to find out.
Any takers?

tatsuya

いつもお世話になっております かわさき@ giganetです。

かわさき

= = = = = =
電話 03-3239-0607 fax 03-3239-2609
business network telecom
http://www.giganet.net