[Gllug] OT: Traceroute

[Doug Winter]

On Tue 18 Mar Shevek wrote:
> It isn't continuing with "another route". It's just that it can't get any 
> ICMP packets from that hop. This is more common than it ought to be.
> 
> Usually this means that some brain damaged sysadmin has decided that ICMP 
> is a "security issue" and has blocked it, so traceroute doesn't work. Try 
> a TCP based traceroute instead.
> 
> Recommend Stevens TCP/IP volume 1.

Yeah.  Far too many people block ICMP as a blanket policy with
predictable results.  ICMP is a core part of IP and shouldn't be mucked
about with unless you *really* *really* know what you are doing.

doug.

-- 
http://www.britishsteal.com                        doug at pigeonhold.com
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