[Serusers] NAT with multiple SERs

[Andreas Granig]

Klaus Darilion wrote:
> Juha Heinanen wrote:
>> should have been "in via header".
> 
> Nice idea, never thought of this before. But I see also some problems:

I was also surprised about the solutions like redirecting registers or 
routing options via ser-2, and they look quite promising at first 
glance. But unfortunately the former isn't supported by our (and a lot 
of others, I fear) UACs and the latter will result in quite a big hack, 
apart from the problems when one ser goes down and can't keep the nat 
binding opened. And both won't scale very well IMHO.

So maybe I'll have a look at an LVS solution after all to present only 
one public IP to the UACs.

Andy