[lug] Setting values in IP headers

[Budyanto Himawan]

Thank you. Yes the source for netfilter or even iptables would be a good place to look.
 


John Hernandez <John.Hernandez at noaa.gov> wrote:
This can be done with Linux netfilter, for example 'iptables -j TOS 
--set-tos '. Run 'iptables -j TOS -h' to see a list of possible 
values.

I'm not sure how this is implemented in C, but the netfilter source 
might be a good place to start.

http://www.netfilter.org/documentation/

Budyanto Himawan wrote:
> Hi,
> 
> Does anybody know if it's possible to change values to some fields
> in the IP headers (in particular the TOS field)? Is there a c function 
> that can achieve this?
> 
> I'm trying to see if I can control the TOS fields of ip packets going 
> out of my linux box.
> 
> Thanks
> 
> 
> ===========================
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> ===========================
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