Re: Fw: Problems with lost packets
I dont see how it could be a MTU problem witht the windows boxes
as they works properly following his explanations..
Some stuffs to check:
- can you ping properly this www.gulic.org from the firewall itself ?
- Sniff the icmp packets (tcpdump or (t)ethereal from your firewall machine, on the inside and outside
interface and check what's happening (to see if the problem comes from your
local network or after).
JeF
On Wed, Apr 24, 2002 at 01:28:22PM -0400, ann@heberge.net wrote:
> Try to set the MTU parameters correctly under your windows boxes.
>
> stef
>
>
> Quoting Alberto Rodríguez <alberto@perezvera.com>:
>
> > Hello,
> >
> > I'm having problems with packets from internet.
> >
> > I have a little network. theare are a firewall which masquerade all
> > paquets.
> > Now I have a server for web, email etc...
> >
> > The firewall have a adsl line. theare are about 10 windows machines which
> > use internet conection by the firewall.
> >
> > All these machines ( the windows ones) use full internet without problems.
> > But the server have a big problem whit packets...
> >
> >
> > For instance, if I write ping www.gulic.org from the server, I get the
> > follow:
> >
> > ping www.gulic.org
> > PING www.gulic.org (193.145.135.17): 56 data bytes
> > 64 bytes from 193.145.135.17: icmp_seq=0 ttl=237 time=157.7 ms
> > 64 bytes from 193.145.135.17: icmp_seq=1 ttl=237 time=465.3 ms
> >
> >
> > and I only can receive one or two response to the ping, after Ctrl+C I get
> > the follow:
> >
> > --- www.gulic.org ping statistics ---
> > 9 packets transmitted, 2 packets received, 77% packet loss
> > round-trip min/avg/max = 157.7/311.5/465.3 ms
> >
> > The problem is only if I ping to a exterior IP. If I ping to an internal
> > one, the response of ping is normal:
> >
> > ping 10.0.0.64
> > PING 10.0.0.64 (10.0.0.64): 56 data bytes
> > 64 bytes from 10.0.0.64: icmp_seq=0 ttl=128 time=0.7 ms
> > 64 bytes from 10.0.0.64: icmp_seq=1 ttl=128 time=0.6 ms
> > 64 bytes from 10.0.0.64: icmp_seq=2 ttl=128 time=0.7 ms
> > 64 bytes from 10.0.0.64: icmp_seq=3 ttl=128 time=0.7 ms
> > 64 bytes from 10.0.0.64: icmp_seq=4 ttl=128 time=0.7 ms
> > 64 bytes from 10.0.0.64: icmp_seq=5 ttl=128 time=0.7 ms
> > 64 bytes from 10.0.0.64: icmp_seq=6 ttl=128 time=0.7 ms
> >
> > --- 10.0.0.64 ping statistics ---
> > 7 packets transmitted, 7 packets received, 0% packet loss
> > round-trip min/avg/max = 0.6/0.6/0.7 ms
> > servidor:~#
> >
> >
> >
> >
> > The server have a pci ethernet with the 8029 realtek chip.
> >
> > The server have a 2.4.18 kernel with xfs journaling support.
> >
> > The irq of the ethernet is 10 and is shared with the usb port.
> >
> >
> > Could anyone help me with this problem?
> >
> > Sorry for my bad English and thanks in advance.
> >
> >
> >
> >
> > --
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> >
>
>
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--
-> Jean-Francois Dive
--> jef@linuxbe.org
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