RE: Access list question

From: David Prall (dcp@dcptech.com)
Date: Fri Oct 17 2008 - 17:26:21 ART


What kind of traceroute, different implementations work in differnet ways.
Typical unix/cisco traceroute sends a packet to the destination using
udp/33434 and then increments them by one for each hop. So you could block
everything destined to these ports.

Access-list 100 deny udp any any range 33434-33464
Access-list 100 permit ip any any

--
http://dcp.dcptech.com
 
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> ccie820@gmail.com
> Sent: Friday, October 17, 2008 3:55 PM
> To: ccielab@groupstudy.com
> Subject: Access list question
> 
> *All,
> 
> Is there way to block traceroutes and allow pings ?
> Your help will be very much appreciated.
> 
> GG
> *
> 
> 
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