routing on multiple subnets

[cp2000]

I need to setup a second subnet on my Solaris 8 system. I think I everything figured out except the routing. With a single subnet, I just put the gatway information in /etc/defaultrouter. I'm not sure what to do for a second subnet.

Current subnet
network - 111.222.333.120
netmask - 255.255.255.248
gateway - 111.222.333.121

New subnet
network - 111.222.313.128
netmask - 255.255.255.192
gateway - 111.222.313.129

I know to put:
hostname/IPs in /etc/hosts
network/netmasks in /etc/netmasks

Gateway ?


THNX 4 the help

 

[bfitzmai]

You can install a secondary NIC Card. Create the file /etc/hostname.<nic card> and enter a node name for the secondary NIC. Edit the local host table and give secondary NIC the IP Address in the new subnet. Edit netmasks for the new subnet. I do this all the time... Works great!!!

 

[cp2000]

I was hoping not to have to add additional hardware. Is there a way to do a virtual adaptor. I can do the ipconfig part OK....just can't figure how to have multiple gateways.

 

[bfitzmai]

Thought there were some threads that covered what you are trying to do. Could not find them. daFranze should be able to help you.

 

[cp2000]

I also searched the archives.....First

 

[Sekhar]

You can configure virtual interfaces as below:

ifconfig <interfacename>:1 plumb <IP address> up

Theoritically, you can configure 256 virtual interfaces to one physical interface.

 

[cp2000]

Configuring the interface isn't the problem...there are 2 wonderfully useful FAQa on the subject in this very forum.

Configuring the separate gateways is the problem. I have 2 separate IP ranges that use separate gateways. .....THAT!!!! is the problem.

 

[blainepruitt]

I don't think it comes on a Solaris system by default, but you can add multiple gateways for your interfaces in a file called /etc/gateways. I always test my configuration using command line and then add it to the pertinent files later (/etc/gateways, /etc/netmask, /etc/hosts). Unfortunately I am on a Linux box right now, but I believe there is a man page for /etc/gateways.

HTH
-bp