Re: [A BUG?]: routing with multiple default routes

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Bill Davidsen wrote:
> Patrick McHardy wrote:
> 
>>> So is the "src" portion of my table intended to set the source IP, or
>>> did I misread the doc? And is that a bug or a feature?
>>>     
>>
>>
>>
>> Source address selection is done before the first packet is generated,
>> so the marks can't affect it. They just cause rerouting of the packet,
>> but don't change the source address afterwards.
>>   
> 
> So what is the source specification used for then? If it doesn't set the
> source IP, (and it doesn't, I need an SNAT rule), and it doesn't force
> that source IP out the designated NIC, (doesn't do that, that's why I
> came up with all the MARK rules), what exactly does it do? Or is it just
> for documentation?


With routing by fwmark, its entirely useless. The only possibility
to use it would be to support setting a per-socket nfmark value.
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