Hello this is my first post at this forum.
Apologize for my lack of network understanding
but Im posting to learn.
I have a problem reaching default gateway 10.18.110.1

If I use my laptop I can ping 10.18.110.1 but with our red hat multihomed server the gateway does not respond to ping.
cat /etc/redhat-release
Red Hat Enterprise Linux ES release 3 (Taroon Update 6)

So I I think its a routing problem but I can not tell if the below is correct or not.

root@telfrm network-scripts]# netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
172.21.65.0 0.0.0.0 255.255.255.128 U 0 0 0 eth1
172.21.2.0 0.0.0.0 255.255.255.128 U 0 0 0 eth0
10.18.110.0 0.0.0.0 255.255.255.0 U 0 0 0 eth2
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth2
0.0.0.0 10.18.110.1 0.0.0.0 UG 0 0 0 eth2

My interfaces.
eth0 Link encap:Ethernet HWaddr 00:21:5A:EE:A9:E6
inet addr:172.21.2.44 Bcast:172.21.2.127 Mask:255.255.255.128
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2975 errors:0 dropped:0 overruns:0 frame:0
TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:190400 (185.9 Kb) TX bytes:256 (256.0 b)
Interrupt:16 Memory:f8000000-f8011100

eth1 Link encap:Ethernet HWaddr 00:21:5A:EE:A9:E4
inet addr:172.21.65.25 Bcast:172.21.65.127 Mask:255.255.255.128
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:950 errors:0 dropped:0 overruns:0 frame:0
TX packets:598 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:85568 (83.5 Kb) TX bytes:109903 (107.3 Kb)
Interrupt:17 Memory:fa000000-fa011100

eth2 Link encap:Ethernet HWaddr 00:1F:29:5D:B9:89
inet addr:10.18.110.23 Bcast:10.18.110.255 Mask:255.255.255.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Base address:0x5000 Memory:fdde0000-fde00000

eth3 Link encap:Ethernet HWaddr 00:1F:29:5D:B9:88
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Base address:0x5020 Memory:fdce0000-fdd00000

eth4 Link encap:Ethernet HWaddr 00:1F:29:5D:B9:8B
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Base address:0x6000 Memory:fdfe0000-fe000000

eth5 Link encap:Ethernet HWaddr 00:1F:29:5D:B9:8A
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Base address:0x6020 Memory:fdee0000-fdf00000

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:385325 errors:0 dropped:0 overruns:0 frame:0
TX packets:385325 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:41960958 (40.0 Mb) TX bytes:41960958 (40.0 Mb)

why do eth3,4and 5 show up, I dont have any ifcfg-ethx file for them.

[root@telfrm network-scripts]# more /etc/hosts
127.0.0.1 localhost.localdomain localhost
10.18.110.23 telfrm.mycomp.es telfrm

more /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=telfrm
DOMAINNAME=mycomp.es
GATEWAY=10.18.110.1


I had a friend having a look and he thougt the routing table was okey.

Any suggestions are welcome.
Regards
Jan