On 08/28/2012 11:12 AM, Mark van Dijk wrote:
> Tom hi,
>
> Back in 2011 you added the TTL target in tcrules per my request:
>
> http://www.mail-archive.com/[email protected]/msg12420.html
>
> Today I tried adding the rule to tcrules in shorewall 4.5.5.3 on the
> following (typical) setup:
>
> Internet -> eth0(in) -> Shorewall -> eth1(out) -> internal hosts
>
> /etc/shorewall/tcrules:
> TTL(+1)  eth0  eth1  all
>
> With said Shorewall version, I found that TTL is only allowed to be
> added to the FORWARD chain in the mangle table. However, in order to
> hide 'Shorewall' from e.g. traceroute in the above setup,
>   it has to be
> added to the PREROUTING chain of the mangle table. Currently this is not
> allowed. Could you please make it possible? In other words:
>
> TTL(+1):P  eth0  eth1  all

With the patch I posted, you don't want 'eth1' in the DEST column....

-Tom
-- 
Tom Eastep        \ When I die, I want to go like my Grandfather who
Shoreline,         \ died peacefully in his sleep. Not screaming like
Washington, USA     \ all of the passengers in his car
http://shorewall.net \________________________________________________



------------------------------------------------------------------------------
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
_______________________________________________
Shorewall-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/shorewall-users

Reply via email to