Re: [Sheflug] (no subject)

[Andy Morris <andy [at] xxxxxxxxx>]

>
> And Lo! The Great Prophet Alex Hudson uttered these words of wisdom:
>
>> On Wed, 2003-10-01 at 00:31, Chris J wrote:
>>> I'm a little confused; Andy - by tracepath do you mean
>>> traceroute?
>>>
>>
>> Get with the programme, Granddad ;)
>>
>
> :P
>
>
> I've never come across it, nor have I got tracepath on my system,
> nor have I come across it on non-linux systems either. On those
> grounds, I think I'm justified (and /not/ ancient[1], contrary to
> popular belief). So ner :P
>
>
>> It traces path to destination discovering MTU along this path. It
>> uses UDP port port or some random port.  It is similar to
>> traceroute, only does not not require superuser privileges and
>> has no fancy options.
>>
>
> Fair 'nuff, so it's a more secure and less flexible traceroute :)
> Though as I mentioned elsewhere, I tend to use tcptraceroute these
> days.
>
>>
>>> Either way, traceroute on UNIX has always used UDP, so won't be
>>> affected by ICMP blocking.
>>>
>>
>> It actually would be if they were blocking ICMP; the packet death
>> would never get back to you. But, it doesn't look like they are
>> actually dropping ICMP, just ping ;)
>>
>
> Yeah, had I been more awake when posting I think I'd have been more
> specific. Echo-Reply and possibly Echo-Request have been blocked,
> but TTL-Exceeded is still allowed :)
>
> Chris...
> [1] mu mu.

Hi Chris,

I do mean tracepath , it is included with RH9 within the sbin folder, and this is why during demons blocking of ICMP 8, i managed to get a routing issue resolved.

Andy


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