Re: Cisco Traceroute and UDP src port range.

two or three days ago i was asked to filter outgoing traceroute packets.
matching on source UDP port is like a solution (if you know what ports
are used) :)

On Fri, May 1, 2009 at 2:17 PM, Dale Shaw <dale.shaw_at_gmail.com> wrote:
> I reckon any task that asked you to do that wouldn't actually require
> you to know the range :-)
>
> (in other words, it'd be a reflexive ACL or CBAC task where return
> traffic associated outbound probes would be automagically permitted
> based on a state table entry.)
>
> cheers,
> Dale
>
> On Fri, May 1, 2009 at 1:57 PM, CCIE RS <cc13rs_at_gmail.com> wrote:
>> Thanks for the Link Scott!
>> I am asking this question form the perspective of LAB exam where, If asked
>> to configure an ACL (Somewhere in the path), but still allow outgoing
>> traceroute Packets.
>> I know the UDP port range starts form 33434, but I am clueless about the
>> upper limit. :(
>>
>> -CC13RS.
>
>
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Received on Fri May 01 2009 - 14:46:20 ART