Routing problems

From: Marco Lovadina (marco.lovadina-togli_at_iol.it)
Date: 02/20/05 

Date: Sun, 20 Feb 2005 22:32:08 GMT

Hi,
        I have a PC with Mandrake 8.1 which works in a LAN with others
PC working with Windows Xp. The whole LAN (my linux machine include)
access Internet through a gateway.
Some days ago has been installed a firewall (which is out of my
control) and from that moment my linux PC couldn't access the
Internet.
It can reache with PING the Gateway, but it is impossible to reach
other servers outside the LAN. I have another PC with Fedora and it
has no problem at all in connecting to Internet.
So I'm afraid that there is some problem in the configuration of the
PC with mandrake. qualche problema sulla macchina
con Mandrake.
 Folloqing is the content of file resolv.conf

nameserver 212.216.112.112
nameserver 151.99.125.2

here's the output of the route command

Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0 * 255.255.255.0 U 0 0 0 eth0
127.0.0.0 * 255.0.0.0 U 0 0 0 lo
default 192.168.1.254 0.0.0.0 UG 0 0 0 eth0

and finally the output of ifconfig

eth0 Link encap:Ethernet HWaddr 00:05:1C:20:89:15
          inet addr:192.168.1.4 Bcast:192.168.1.255 Mask:255.255.255.0
          UP BROADCAST NOTRAILERS RUNNING MTU:1500 Metric:1
          RX packets:3220 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1995 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:423396 (413.4 Kb) TX bytes:212705 (207.7 Kb)
          Interrupt:10 Base address:0xcf00

lo Link encap:Local Loopback
          inet addr:127.0.0.1 Mask:255.0.0.0
          UP LOOPBACK RUNNING MTU:16436 Metric:1
          RX packets:329 errors:0 dropped:0 overruns:0 frame:0
          TX packets:329 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:149161 (145.6 Kb) TX bytes:149161 (145.6 Kb)

Anyone has some suggestions to solve my problem?
Thanks in advance

Marco

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