LARTC - Mar 2003 - IMQ/iptables question

Hello,

		I am using IMQ on my firewall to manage downloads by two networks within 
the firewall. I mark traffic in iptables, and jump to IMQ from postrouting. 
This allows me to manage the traffic coming from the internet even though 
it is leaving on 2 interfaces, however I think I''ve hit a limitation of
IMQ. If the firewall machine downloads from the internet link then 
postrouting rules are not hit in iptables. I did try putting a rule in 
input jumping to IMQ, but I wasn''t particularly surprised when I
didn''t see
the traffic on imq0.

	Is there a way to manage the input traffic to the firewall from the 
internet alongside the two internal networks? I guess policing might be the 
only option?


Thanks
_____________________________________________________________
David Watson, Network Manager, Team17 Software Ltd.
Phone: +44-1924-267776			Fax: +44-1924-267658
_____________________________________________________________

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On Friday 14 March 2003 15:13, David Watson wrote:
> Hello,
>
> 		I am using IMQ on my firewall to manage downloads by two networks within
> the firewall. I mark traffic in iptables, and jump to IMQ from postrouting.
> This allows me to manage the traffic coming from the internet even though
> it is leaving on 2 interfaces, however I think I''ve hit a
limitation of
> IMQ. If the firewall machine downloads from the internet link then
> postrouting rules are not hit in iptables. I did try putting a rule in
> input jumping to IMQ, but I wasn''t particularly surprised when I
didn''t see
> the traffic on imq0.
So you tried putting packets from the input table in the imq device, but that 
didn''t worked?  Strange.
> 	Is there a way to manage the input traffic to the firewall from the
> internet alongside the two internal networks? I guess policing might be the
> only option?
If you are able to put the traffic from the input iptable in the imq device, 
you can.

Stef

-- 

stef.coene@docum.org
 "Using Linux as bandwidth manager"
     http://www.docum.org/
     #lartc @ irc.oftc.net

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