[erlang-questions] IP packet manipulation within Erlang

Leon de Rooij <>
Thu Jan 7 09:35:34 CET 2010


Hi,

I didn't try it myself yet, but I as I understand it, you can use  
tuntap to route ip traffic into erlang:

http://cean.process-one.net/packages/index.yaws?action=detail&name=tuntap

regards,

Leon


On Jan 7, 2010, at 9:15 AM, Martti Kuparinen wrote:

> Hi,
>
> How suitable is Erlang for a small project where I'd like to
>
> - grab all incoming IP packets
> - perform some IP header manipulation
> - send out the modified packets
>
> I'm aware I need some kind of bpf/pcap driver to get the packets  
> into Erlang (or does Erlang now have something in this front).
>
> Do you guys have any idea how fast this whole thing would be  
> compared to doing same in normal userland C program? Or even  
> compared to doing the manipulation within Linux kernel.
>
> Martti
>
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