Large scale NAT - problem resolved

[Julian Elischer]

On Wed, 28 Jan 2004 veedee at c7.campus.utcluj.ro wrote:

> On Wed, Jan 28, 2004 at 01:06:06PM -0800, Julian Elischer wrote:
> > 
> > 
> > On Wed, 28 Jan 2004, Ruslan Ermilov wrote:
> > 
> > > On Wed, Jan 28, 2004 at 10:46:03PM +0200, veedee at c7.campus.utcluj.ro wrote:
> > > > On Wed, Jan 28, 2004 at 10:41:20PM +0200, Ruslan Ermilov wrote:
> > > > > On Wed, Jan 28, 2004 at 12:15:56AM -0800, Julian Elischer wrote:
> > > > > > 
> > > > > > On Wed, 28 Jan 2004, Andriy Korud wrote:
> > > > > > 
> > > > > > > 
> > > > > > > Hi,
> > > > > > > At last I've managed to build stable NAT on FreeBSD box for 34Mbit link and
> > > > > > > ~2000 clients (cable modem network).
> > > > > > > At full speed (34Mbit) CPU usage is 0% and system load is 0.0 :-)
> > > > > > > 
> > > > > > 
> > > > > > It'd be really interesting to see how natd would handle such a load....
> > > > > > 
> > > > > You must be kidding.  ;)
> > > > 
> > > > Agreed. NATd "crashes" with 400 clients on AMD Athlon 900Mhz. :( ipnat
> > > > works fine.
> > > > 
> > > > This raises a question... is there any point in still having natd? (don't
> > > > throw rocks at me please, I'm just asking). Or maybe it's still being used
> > > > for servers with less clients to nat?
> > > >  
> > > If your Internet connection is 128kbit/s, it can cope with it nicely.
> > > One day I will write the ng_nat(4) module.
> > 
> > actually it can cope with a LOT more than that.. We see no degredation
> > nating a 100Mb link.. (though not fully).
> 
> I got ~400 (was 400, now 450 this year) clients on an 100Mbps link and it
> only works with ipnat for me :(

we only have a few "clients" so possibly it's related to that..



> 
> > 
> > 
> > > 
> > > 
> > > Cheers,
> > > -- 
> > > Ruslan Ermilov
> > > FreeBSD committer
> > > ru at FreeBSD.org
> > > 
> > 
> 
> -- 
> | Radu Bogdan 'veedee' Rusu
> | NetSysAdm at campus dot utcluj dot ro
> | Personal gallery at http://rbrusu.com
> | ...mirroring FreeBSD and coffee
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