PF slowing down file copies

[Bill Moran]

In response to "José Pablo Fernández" <pablo.fernandez at rs.com.ar>:

> On Wednesday 21 February 2007 05:39, Nikos Vassiliadis wrote:
> > On Wednesday 21 February 2007 01:21, José Pablo Fernández wrote:
> > > My problem is that when I copy a file from one network to the other, the
> > > first 128KB seems to be copied instantaneously, the second 128KB take
> > > more than two minutes and I've seen the third 128KB being copied very
> > > rarely.
> >
> > This might be an MTU problem. Is the MTU set to 1500 everywhere?
> > You can try using a smaller MTU - like 1400 - on two computers,
> > try a transfer and if that works, you'll have to check the
> > switches involved.
> 
> Where is/should the MTU be set?

ifconfig <interface> mtu 1400
(for example)

> 
> > > This is using Secure CoPy.
> >
> > Do you mean scp(1)?
> 
> Yes.
> 
> > Also, what's going on when you disable pf?
> 
> When I disable PF I can't reach outside because that is what is in charge of 
> NATing, but I can reach the other network, and the copy just works.

Have you tried stripping your pf rules down to JUST nat to see if the
problem changes?

-- 
Bill Moran
Collaborative Fusion Inc.