[Vserver] Re: About the tcp/ip stack ...

From: Andrew Schulman <andrex_at_alumni.utexas.net>
Date: Fri 26 May 2006 - 17:49:53 BST
Message-ID: <n9ce72daok6nh9br77f3poernjb1oipi8h@4ax.com>

> > > "I don`t try this but it`s can be don`t work with FreeVPS.
> > > dhcpd use bpf for get requests, but bpf level very poor virtualizated at
> > > FreeVPS.
> > > I have plan to rewrite vnetdev module for use L2 address for separate
> > > packets between contexts and ability use any vps as default gateway for
> > > all other, but it`s not for 1.5 branch.
> > > At current time separate packets between contexts work with L3 addresses
> > > (IPv4/v6)."
> >
> > Sorry if this is OT for this list, but let me see if I understand: are you
> > saying that FreeVPS' virtual network interfaces isolate TCP traffic, but not
> > UDP? And therefore dhcpd won't run in a FreeVPS VPS? Can this really be
> > true? I can't find any other mention of it, and
> > http://www.freevps.com/tracker.html says that FreeVPS has "private udp
> > socket lists".
> >
> > If this is true it's very bad for FreeVPS.
> Although dhcp packets use UDP, they're very weird UDP packets because the
> client doesn't necessarily have an IP address at the time it needs to
> receive them. Thus, dhcpd uses a different socket layer than normal
> UDP/TCP, which I gather from the above is not divided between contexts in
> freevps.

Aren't they just broadcast packets, sent to on port 67/udp?
Anyway, this is OT here so I'll pursue it on the FreeVPS lists. Thanks,

Vserver mailing list
Received on Sat May 27 01:55:53 2006

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