2 IP address,same box 2

[trepied]

2 IP address, same box in the same time,
i've seen it work on a network and i dont know how.
How can i get 2 comunication channels opened in the same time,using different IP's on same box and not involving your ISP to much in this?

 

[ashpp]

To multihome you install two network cards. What do you want to acheive? What OS? Same subnets or different ?

Ash.

 

[Ntr0P]

Depending on the OS, you can have more than 1 IP per interface. Pro's and con's to that.

How it works: IP communication is concerned with unique sockets. That would be the pairing of IP address to port #. That along with routing makes it all work.

Your ISP needn't be concerned with the IPs you are using provided they are private IPs. If you need public IPs, you have no choice to work with your ISP (unless you have a pool of unused public IPs).

 

[johnny99]

Yes you can have more NIC's in a server and each NIC can have a lot of IP-numbers.

The info I am missing is about what you want to do. Using 2 communications channels doesn't say much.

Do you want to have 2 different public IP-numbers that are on different lines to be able to connect to your server?

Or do you want to bundle to lines to the internet to get more speed?

 

[jmiturbe]

Hello,

There are a lot of possibilities there: all the above, trunking (group many NICs into one to extend the bandwidth), multipathing (you can have to NICs with different IPs on the same network associated to different services but providing each other High Availability), etc...

If you exactly post what you are looking for, maybe we could point you to the best solution for ypur needs.

Bye,

jmiturbe