Hello,
I am new to network routing and I need help configuring a linux box with
two ethernet cards. In this case it's a Linux RH 7.3 box, in a cabinet
that already has a couple of Windows servers. The Windows server routing
is below as an example.
The Linux box has an out-of-band interface at 10.130.36.38 and a public
eth at 62.50.8.84. I had to add a route for the private interface so I
could access its ports. However, since I did that, the Linux box cannot
access the internet. The incoming requests to 62.50.8.84 are fine, I can
hit the web service fine, but the net is not visible from the linux box.
I think it's just a matter of adding a route but am not sure how.
Interestingly enough I can ping the outside machines but cannot browse
over the net. I remember that this worked fine before I added the route
to the private interface, so it must be a routing problem and not some
other issue.
The Linux routing table:
[root@sylvester root]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
62.50.8.80 0.0.0.0 255.255.255.248 U 0 0 0
eth0
10.130.36.32 0.0.0.0 255.255.255.240 U 0 0 0
eth1
172.17.1.0 10.130.36.34 255.255.255.240 UG 0 0 0
eth1
10.0.0.0 10.130.36.33 255.0.0.0 UG 0 0 0
eth1
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 62.50.8.81 0.0.0.0 UG 0 0 0
eth0
[root@sylvester root]# ip route
62.50.8.80/29 dev eth0 scope link
10.130.36.32/28 dev eth1 scope link
172.17.1.0/28 via 10.130.36.34 dev eth1
10.0.0.0/8 via 10.130.36.33 dev eth1
127.0.0.0/8 dev lo scope link
default via 62.50.8.81 dev eth0
The Windows server routing, which works fine:
[c:\4nt]route PRINT
===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...44 45 53 54 42 00 ...... NOC Extranet Access Adapter
0x1000004 ...00 0b cd 1c 99 84 ...... Compaq NC7780 Gigabit Server Adapter
0x1000005 ...00 0b cd 1c 96 95 ...... Compaq NC7780 Gigabit Server Adapter
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 62.50.8.81 62.50.8.83 1
10.0.0.0 255.0.0.0 10.130.36.33 10.130.36.36 1
10.130.36.32 255.255.255.240 10.130.36.36 10.130.36.36
1 10.130.36.36 255.255.255.255 127.0.0.1 127.0.0.1 1
10.255.255.255 255.255.255.255 10.130.36.36 10.130.36.36 1
62.50.0.221 255.255.255.255 10.130.36.33 10.130.36.36
1 62.50.0.222 255.255.255.255 10.130.36.33 10.130.36.36 1
62.50.8.80 255.255.255.248 62.50.8.83 62.50.8.83
1 62.50.8.83 255.255.255.255 127.0.0.1 127.0.0.1 1
62.255.255.255 255.255.255.255 62.50.8.83 62.50.8.83 1
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
172.17.1.0 255.255.255.240 10.130.36.34 10.130.36.36 1
224.0.0.0 224.0.0.0 10.130.36.36 10.130.36.36
1 224.0.0.0 224.0.0.0 62.50.8.83 62.50.8.83 1
255.255.255.255 255.255.255.255 62.50.8.83 2 1
Default Gateway: 62.50.8.81
===========================================================================
Persistent Routes:
Network Address Netmask Gateway Address Metric
10.0.0.0 255.0.0.0 10.130.36.33 1
62.50.0.221 255.255.255.255 10.130.36.33 1
62.50.0.222 255.255.255.255 10.130.36.33 1
172.17.1.0 255.255.255.240 10.130.36.34 1
Any help would be appreciated.
Eduard
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