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Re: passive mode ftp on kernel 2.2.19

To: Joseph Mack <mack.joseph@xxxxxxx>
Subject: Re: passive mode ftp on kernel 2.2.19
Cc: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
From: Julian Anastasov <ja@xxxxxx>
Date: Thu, 3 May 2001 22:07:26 +0300 (EEST)
        Hello,

On Thu, 3 May 2001, Joseph Mack wrote:

> > > How about instead if we configured the VIP as a hidden IP on eth0 and
> > > put the RIP on a 2nd card say eth1?
> >
> >         If eth1/hidden=1 this is working, you can put many VIPs on eth1.
> > This setup assumes the broadcast ARP probes come from eth0. In this
>   ^^^^^^^^^^
>
> my setup or your setup?

        My :)

> I was proposing eth0=VIP (hidden). eth1=RIP (not hidden). I was assuming
> that processes would use eth0 as source_addr. Is there a setup where
> the process will call from the VIP rather than the RIP. This would
> solve the identd problem too.

        If the broadcast probes come from eth0, the IP addresses on
eth0 are not hidden. One interface is hidden for broadcast probes coming
from different devices only.

        The ident problem can't be solved with routing. The ident
proto does not rely on the routing to select source address for the
outgoing connection. The software simply binds to VIP.

        But if the VIP is mentioned as prefereed source address in routes
I assume it will be selected. The restriction is for the autoselection
when there is no preferred source address. In this case the hidden
interfaces are skipped and IP address from another device is selected.

> Joe
>
> --
> Joseph Mack PhD, Senior Systems Engineer, Lockheed Martin
> contractor to the National Environmental Supercomputer Center,
> mailto:mack.joseph@xxxxxxx ph# 919-541-0007, RTP, NC, USA


Regards

--
Julian Anastasov <ja@xxxxxx>



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