[plug] no ping

[James Devenish]

In message <20040523031721.GB25809 at patrick.wattle.id.au>
on Sun, May 23, 2004 at 11:17:21AM +0800, Cameron Patrick wrote:
> James Devenish wrote:
> | > > traceroute www.bom.gov.au
> | > Thought he said ICMP is blocked?
> | I assumed it was an inaccurate statement and gave them the benefit of
> | the doubt that they weren't that bad an ISP.
> FWIW I can't ping www.bom.gov.au but I can traceroute to it.  I think
> that traceroute uses UDP, not ICMP anyway.

In my understanding, both traceroute or tcptraceroute must rely on ICMP,
even though their solicitations are done with UDP or TCP. If the traces
work for you and Mark, then your ISPs are not "blocking ICMP" wholesale
(and they shouldn't, either).