Wierd Network problem

[Craig Russell]

Yes, I have tried different cables, even different
physical ports (although same type of port).  There
was a bug filed against 6.1 for the bge interfaces
that maybe related, although the bug indicated
absolutely no network conductivity.  There was a patch
released and I'm trying to recompile with that patch. 
I must admit I'm having a hard time figuring out how
to apply the patch but once I get past that hurdle
I'll see what happens.

If I can't ge the bge interface working my next best
solution will be to just install another card in one
of the pci slots and use that instead.  Ideally, I
would upgrade to 6.2 but cpanel won't support 6.2 so
I'm stuck on 6.1 for the time being.

Thanks for the reply,

Craig Russell

--- Martin Hepworth <maxsec at gmail.com> wrote:

> Criag
> 
> have you tried cables? Could be a duff network cable
> or even speed mismatch
> between you and the router/switch.
> 
> -
> martin
> 
> On 5/12/07, Craig Russell <crussell_1969 at yahoo.com>
> wrote:
> >
> > I have a dell poweredge 6650 installed with
> freebsd
> > 6.1 and on the local router, everything works
> great
> > (ie, a computer on a different subnet off the same
> > router can access it fine) but coming from outside
> of
> > the network access is incredibly slow.  My first
> > thought was that it must be a routing issue, but I
> > have two other freebsd 6.1 servers on that same
> subnet
> > and I can access them fine from outside.  I dug a
> > little further and compared the servers that are
> > working with those that are not and these are the
> > differences that I have found.
> >
> > On the servers that are working (dell poweredge
> > 2450's) the interface is an fxp0 and here is the
> > output of ifconfig:
> > fxp0:
> > flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST>
> mtu
> > 1500
> > options=8<VLAN_MTU>
> > inet6 fe80::2b0:d0ff:fee1:f66a%fxp0 prefixlen 64
> > scopeid 0x1
> > inet 64.25.218.2 netmask 0xffffff80 broadcast
> > 64.25.218.127
> > ether 00:b0:d0:e1:f6:6a
> > media: Ethernet autoselect (100baseTX
> <full-duplex>)
> >         status: active
> >
> > on the server that is not working:
> >
> > bge0:
> > flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST>
> mtu
> > 1500
> > options=1b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING>
> > inet6 fe80::211:43ff:fedc:9aa2%bge0 prefixlen 64
> > scopeid 0x1
> > inet 64.25.218.10 netmask 0xffffff80 broadcast
> > 64.25.218.127
> > ether 00:11:43:dc:9a:a2
> > media: Ethernet autoselect (100baseTX
> <full-duplex>)
> > status: active
> >
> > The first thing that i noticed is that on the
> option
> > line there is quite a bit of difference between
> the
> > two.  So using the command line ifconfig tool I
> > removed RXCSUM, TXCSUM from the bge0 interface.
> > Voila!  Speed increased and the server was
> actually
> > accessible from off net.  Unfortunately, as soon
> as I
> > tried to access any other port, the interface
> crashes.
> > Eventually the watchdog picks up on that and
> restarts
> > the interface.  But the problem is completely
> > repeatable.
> >
> > The server that I am having problems with is
> running
> > cpanel 10.9; the two that are working are running
> the
> > dns-only version of cpanel.  I am not picking up
> any
> > errors in the logs.  This could be related to
> cpanel,
> > or not, I'm not really sure, although it shouldn't
> be.
> >
> > The other unique thing about the setup, that very
> well
> > may be affecting is that the router in question
> has
> > two subnets configured on the internal port. 
> There is
> > a nat'd subnet for our local users and there is
> the
> > public subnet that these servers sit on.  The
> final
> > resting place for all three is in a datacenter
> that
> > isn't built yet, so rather than reconfigure
> everything
> > once that was done I simply routed the final
> subnet to
> > our office and set it up their.  The router is a
> > mikrotik RB112 board which only has one ethernet
> port
> > so I couldn't dedicate a port for the new subnet. 
> As
> > I said, my first thought was that the problem was
> in
> > the router, but the other two servers are running
> > fine.
> >
> > Any suggestions?
> >
> > Thank you,
> > Craig Russell
> > _______________________________________________
> > freebsd-questions at freebsd.org mailing list
> >
>
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> > To unsubscribe, send any mail to "
> > freebsd-questions-unsubscribe at freebsd.org"
> >
> _______________________________________________
> freebsd-questions at freebsd.org mailing list
>
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> To unsubscribe, send any mail to
> "freebsd-questions-unsubscribe at freebsd.org"
>