2 network interfaces trouble
The problem is: I have 2 network interfaces (eth0 and eth1 respectively)
eth0 configured and works properly eth1 configured, but I cannot ping any other PC or ping eth1 from any PC eth0 was configured earlier using "netconfig" eth1 was configured in such a way: ifconfig eth1 172.16.1.110 netmask 255.255.254.0 broadcast 172.16.1.255 Here are the actual settings of both interfaces: ifconfig eth0 eth0 Link encap:Ethernet HWaddr 00:0E:2E:22:A7:82 inet addr:172.16.1.111 Bcast:172.16.1.255 Mask:255.255.254.0 inet6 addr: fe80::20e:2eff:fe22:a782/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:76752 errors:0 dropped:0 overruns:0 frame:0 TX packets:131024 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:6022266 (5.7 Mb) TX bytes:181674480 (173.2 Mb) Interrupt:11 Base address:0x6000 ifconfig eth1 eth1 Link encap:Ethernet HWaddr 00:C0:26:A2:7F:03 inet addr:172.16.1.110 Bcast:172.16.1.255 Mask:255.255.254.0 inet6 addr: fe80::2c0:26ff:fea2:7f03/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:13 errors:0 dropped:0 overruns:0 frame:0 TX packets:21 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:892 (892.0 b) TX bytes:1368 (1.3 Kb) Interrupt:10 Base address:0x8000 I'm using Slackware. Kernel 2.6.15 |
What is eth1 plugged into? Did you set up routing properly? A physical description of your network would help here...
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If both interfaces are on the same switch and the same subnet, most network traffic will go to the first interface, then bleed over to the second one. I once set up a server for multiple web sites on our intranet with 4 interfaces (4 separate stactic IP addresses), and the same thing happened. Each web page was served by a particular ip address, and everything worked correctly, except the load was being handled by only one interface. Even configuring our Cisco switches to route separately to each interface, the traffic ended up on one interface.
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Quote:
like:- ifconfig eth0:1 172.16.1.110 netmask 255.255.254.0 broadcast 172.16.1.255 this way you will be able to use two IP addresses on a single NIC card without having to worry about the network load ending up on a single interface. It is always preferred to have virtual interfacing on a single subnet v/s two NICs on a single subnet. you can add up the new IP address with hostname in /etc/hosts file to make it pingable. Once the entry is taken up by your DNS server, this problem should be solved. Hope it helps, Rahul. |
Thanl you all, the problem is solved. I just configured them for different subnetworks and it worked. I'm trying to set up a gateway for the first time, so I've got a lot of stupid questions
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