semi-newbie question

[Dominic Mitchell]

On Thu, Apr 24, 2003 at 05:15:23PM +0100, Simon Gray wrote:
> Hi all,
> 
> Just a quick silly question. Just had dsl installed (solwise dsl router) got
> a few freebsd machines and some windows machines on it. All working
> perfectly apart from one thing.
> 
> For some reason the freebsd machines (both 5.0-release) won't do
> traceroutes, will do pings/dns/everything else fine. Router isn't blocking
> icmp or anything, because it works perfectly under windows.
> 
> The bsd machines aren't doing any form of firewalling or packet filtering.
> 
> This is what i get from one of the freebsd machines:
> 
> traceroute to www.linx.net (195.66.232.34), 64 hops max, 40 byte packets
>  1  my.router (192.168.0.1)  1.087 ms  0.764 ms  0.865 ms
>  2  * * *
>  3  * * *
> 
> Any ideas? Doesn't both me that i can do traceroutes from it, just curious
> to find out why.

Traceroute uses high numbered UDP ports outgoing.  It looks like
somethings blocking them...  Are you sure that there's no firewall at
all on that router?

-Dom