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10.08.2008 at 10:42AM PDT, ID: 23798256 | Points: 500
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How do I set up 2 NICs in Ubuntu? One NIC is not responding

Asked by Geesu in Linux Networking, Linux

Tags: ,

So I have two routers plugged into my ubuntu server (2 NICs)

eth0: 192.168.0.10 <--- my internal network
eth1: 192.168.1.10 <--- to external network

The internal network is functioning correctly (can still connect, IP is actually being set, etc...). I am unable to connect to the server through eth1 (and I need to be able to through HTTP, SSH, etc...)

Here is my /etc/network/interfaces :
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet static
address 192.168.0.10
netmask 255.255.255.0
gateway 192.168.0.1

auto eth1
iface eth1 inet static
address 192.168.1.10
netmask 255.255.255.252
Any ideas? I read on other forums I shouldn't specify a gateway for eth1 since it will confuse the OS. And here is my route -n:

Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.8 0.0.0.0 255.255.255.252 U 0 0 0 eth1
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth0

Here is my ifconfig -a:
eth0 Link encap:Ethernet HWaddr 00:E0:18:9E:52:00
inet addr:192.168.0.10 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::2e0:18ff:fe9e:5200/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:734347 errors:0 dropped:0 overruns:0 frame:0
TX packets:718706 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:357467314 (340.9 MiB) TX bytes:776330370 (740.3 MiB)

eth1 Link encap:Ethernet HWaddr 00:A0:CC:3A:6A:66
inet addr:192.168.1.10 Bcast:192.168.1.11 Mask:255.255.255.252
inet6 addr: fe80::2a0:ccff:fe3a:6a66/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:141 errors:2 dropped:0 overruns:0 frame:0
TX packets:56 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:11090 (10.8 KiB) TX bytes:7137 (6.9 KiB)
Interrupt:169 Base address:0x9400

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:1746 errors:0 dropped:0 overruns:0 frame:0
TX packets:1746 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:166592 (162.6 KiB) TX bytes:166592 (162.6 KiB)

sit0 Link encap:IPv6-in-IPv4
NOARP MTU:1480 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:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Thanks in advance for any help you can provide!!Start Free Trial
[+][-]10.08.2008 at 10:53AM PDT, ID: 22671329

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[+][-]10.08.2008 at 10:55AM PDT, ID: 22671344

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[+][-]10.08.2008 at 11:06AM PDT, ID: 22671450

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[+][-]10.08.2008 at 11:40AM PDT, ID: 22671806

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[+][-]10.08.2008 at 11:53AM PDT, ID: 22671928

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[+][-]10.08.2008 at 11:57AM PDT, ID: 22671975

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[+][-]10.08.2008 at 12:02PM PDT, ID: 22672029

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