Re: Can ipfilter be used to remap TCP ports?

This is a discussion on Re: Can ipfilter be used to remap TCP ports? within the IPFilter forums, part of the System Security and Security Related category; > > Hi Darren, > > I have a similar problem, where I need to make all outgoing IKE traffic ...


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Old 07-20-2005
Darren Reed
 
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Default Re: Can ipfilter be used to remap TCP ports?

>
> Hi Darren,
>
> I have a similar problem, where I need to make all outgoing IKE traffic to
> have a source port of 500 (all outgoing port 500 traffic towards a certain
> IP must also have the same source port). I have tried the following rule
> that you gave with no luck:


That is a bad idea. NAT-T mode of IKE uses 4500.

> map lnc0 from any to xx.xx.xx.xx/32 port = 500 -> 0/0 port = 500 udp


map lnc0 from any to xx.xx.xx.xx/32 port = 500 -> 0/0 port 500 udp

Darren
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