UNIX for Dummies Questions & Answers

hi guys

suse 11 SP1 x64

I have a server (4 NIC ports 192.168.100.100-103) that connects point to point to a storage device (same thing 4 ports 192.168.110.100-113) but this server connects to normal LAN 10.6.100.x - gateway 10.6.100.1

the issue is when testing connectivity to the storage device everything is cool
but as soon as I set the LAN IPs (10.6.100.x) and the gateway I lost connectivity to storage device

what should I modify? any rule o routing rule?

thanks

Don't enter or alter any gateways or other routing information.

No routing whatsoever is needed to talk over a point-to-point link, or over the local subnet -- routing and gateways only get involved for things beyond the local network.

All that's needed for two computers connected loopback to ping each other, for instance, is:

Code:

# on host 1
ifconfig eth0 up
ifconfig eth0 192.168.0.100 netmask 255.255.255.0


# on host 2
ifconfig eth0 up
ifconfig eth0 192.168.0.101 netmask 255.255.255.0

The OS will automatically pick the right interface for local traffic based on IP address and subnet mask.

I found something this server has 4 interface the ones 192.168.128.100-103 - eth0...eth3.... but only eth0 is responding
eth0 - 100
eth1 - 101
eth2 - 102
eth3 - 103

the test I am doing is I connect cable to eth1 and I ping 192.168.128.101 and I get no respond but If I connect cable to interface eth0 I get response from 192.168.100.101-102-103....
but If I connect back to eth1 I don't respond from any IP

thanks

any idea why? it's like eth0 activates all the IPs

It's easily possible to put more than one IP address into a single adapter.

Code:

ifconfig eth0 192.168.0.1 netmask 255.255.255.0
ifconfig eth0:1 192.168.2.1 netmask 255.255.255.0

It's possible you did this instead of putting them on your different adaptors.

Without seeing what your configuration actually is it's very difficult to say.

got your point but I net several NICs for redundancy

this is a just installed suse 11 x64 I don't know what's going on
some configuration if you want I can post here

thanks

---------- Post updated at 04:49 PM ---------- Previous update was at 04:18 PM ----------

I think the issue is related to I have multiple NICs on the same subnet any idea how to fix it?

Post your configuration already.

I'm going to add another thread since I think the issue is different
thanks