networking a Pogolinux system

We bought a Pogolinux system and installed RH Enterprise 3.0 on it.
Assigned static IP and other network parameters during installation.
When the system was rebooted, there is no network to outside. ifconfig
and "netstat -nr" show valid output as seen on another working Linux
box. Yet there is no network connection. Can't ping anything outside
and can't ping this machine from remotehost. mii-tool gives "100MBt
full duplex link UP" message. I don't have a clue what else to try.

On Mon, 07 Jun 2004 10:56:39 -0700, SS wrote:

> We bought a Pogolinux system and installed RH Enterprise 3.0 on it.
> Assigned static IP and other network parameters during installation.
> When the system was rebooted, there is no network to outside. ifconfig
> and "netstat -nr" show valid output as seen on another working Linux
> box. Yet there is no network connection. Can't ping anything outside
> and can't ping this machine from remotehost. mii-tool gives "100MBt
> full duplex link UP" message. I don't have a clue what else to try.

leds on the NIC?
ifconfig ethx
check the cable
maybe snort for traffic
iptables -L (make sure no firewall rules in place).

That's as far as I can go with the above info.
Ed.

If you selected firewall options when you installed RH, you should check
iptables or ipchains table.
a command is "iptables -L, ipchains -L".

If there is no rule, then you should check route table. a command is "ip
route ls".

If you have got above configurations all right, check your NIC. But, I think
that you may get wrong configurations of route table or firewall table.


==================================
"SS" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) m...
> We bought a Pogolinux system and installed RH Enterprise 3.0 on it.
> Assigned static IP and other network parameters during installation.
> When the system was rebooted, there is no network to outside. ifconfig
> and "netstat -nr" show valid output as seen on another working Linux
> box. Yet there is no network connection. Can't ping anything outside
> and can't ping this machine from remotehost. mii-tool gives "100MBt
> full duplex link UP" message. I don't have a clue what else to try.

I didn't install any firewall (this was within a safe network). "ip
route ls" gave something like

xxx.xx.36.0/22 dev eth0 scope link
169.254.0.0/16 dev eth0 scope link
127.0.0.0/8 dev lo scope link
default via xxx.xx.36.253 dev eth0

this checked out with another linux (located in another building) box
that is working.
I cannot ping the gateway itself. if I type
traceroute IP-of-gateway
1 hostname(xxx.xx.36.33) 2999ms !H 2999ms !H 2999ms !H

Every diagnostics looks fine - yet it is dead - I am totally clueless.
The LEDs on the back of NIC are fine (I see both green and blinking
amber). If I unplug, mii-tool gives me "link down". Did the networking
people give me wrong sets of IP/gateway for this location?

"ya" <(E-Mail Removed)> wrote in message news:<ca2t58$nvk$(E-Mail Removed)>...
> If you selected firewall options when you installed RH, you should check
> iptables or ipchains table.
> a command is "iptables -L, ipchains -L".
>
> If there is no rule, then you should check route table. a command is "ip
> route ls".
>
> If you have got above configurations all right, check your NIC. But, I think
> that you may get wrong configurations of route table or firewall table.
>
>
> ==================================
> "SS" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed) m...
> > We bought a Pogolinux system and installed RH Enterprise 3.0 on it.
> > Assigned static IP and other network parameters during installation.
> > When the system was rebooted, there is no network to outside. ifconfig
> > and "netstat -nr" show valid output as seen on another working Linux
> > box. Yet there is no network connection. Can't ping anything outside
> > and can't ping this machine from remotehost. mii-tool gives "100MBt
> > full duplex link UP" message. I don't have a clue what else to try.

SS wrote:
> I didn't install any firewall (this was within a safe network). "ip
> route ls" gave something like
>
> xxx.xx.36.0/22 dev eth0 scope link
> 169.254.0.0/16 dev eth0 scope link
> 127.0.0.0/8 dev lo scope link
> default via xxx.xx.36.253 dev eth0
>
> this checked out with another linux (located in another building) box
> that is working.
> I cannot ping the gateway itself. if I type
> traceroute IP-of-gateway
> 1 hostname(xxx.xx.36.33) 2999ms !H 2999ms !H 2999ms !H
>
> Every diagnostics looks fine - yet it is dead - I am totally clueless.
> The LEDs on the back of NIC are fine (I see both green and blinking
> amber). If I unplug, mii-tool gives me "link down". Did the networking
> people give me wrong sets of IP/gateway for this location?
>

So you can ping localhost? Are you connected through a HUB? I swear I
always forget to reset an 8 port hub here and a new system always
requires reset on this hub. Are you pinging IP or FQDN? I ran into this
once while trying to diagnose a network failure via phone conversation
to a average computer user. We finally determined the NIC was bad.
Replaced it but it still didn't work. OK drive back to office from
another state and found out it was 3 NICs on 3 different systems and
the TRansmit side of the modem was dead. Stray voltage isn't your
friend! Anyway, replace the NIC and see how that goes.

Sorry everyone for wasting your time. It turned out that the network
administrators had assigned wrong IP/GW for that subnet. Once it was
corrected, everything worked.

SS

Randy Ramsdell <(E-Mail Removed)> wrote in message news:<(E-Mail Removed)>...
> SS wrote:
> > I didn't install any firewall (this was within a safe network). "ip
> > route ls" gave something like
> >
> > xxx.xx.36.0/22 dev eth0 scope link
> > 169.254.0.0/16 dev eth0 scope link
> > 127.0.0.0/8 dev lo scope link
> > default via xxx.xx.36.253 dev eth0
> >
> > this checked out with another linux (located in another building) box
> > that is working.
> > I cannot ping the gateway itself. if I type
> > traceroute IP-of-gateway
> > 1 hostname(xxx.xx.36.33) 2999ms !H 2999ms !H 2999ms !H
> >
> > Every diagnostics looks fine - yet it is dead - I am totally clueless.
> > The LEDs on the back of NIC are fine (I see both green and blinking
> > amber). If I unplug, mii-tool gives me "link down". Did the networking
> > people give me wrong sets of IP/gateway for this location?
> >
>
> So you can ping localhost? Are you connected through a HUB? I swear I
> always forget to reset an 8 port hub here and a new system always
> requires reset on this hub. Are you pinging IP or FQDN? I ran into this
> once while trying to diagnose a network failure via phone conversation
> to a average computer user. We finally determined the NIC was bad.
> Replaced it but it still didn't work. OK drive back to office from
> another state and found out it was 3 NICs on 3 different systems and
> the TRansmit side of the modem was dead. Stray voltage isn't your
> friend! Anyway, replace the NIC and see how that goes.