AW: AW: AW: [mohaa] Server Requirements, Questions & Traffic

[MOH at digitalnines.com]

If you are unsure of how to add addional ips to a machine, follow this small
tutorial:

Go to /etc/sysconfig/network-scripts/ as root
Make a new file called
# pico ifcfg-eth0-range0

Add the following lines and edit to match your ip addresses. The following
shows how to add 3 ip addresses.
IPADDR_START=a.b.c.d2
IPADDR_END=a.b.c.d5
CLONENUM_START=0
NETMASK=w.x.y.z

After you are done editing do:
#ifup ifcfg-eth0-range0

**Note: The "CLONENUM_START" line is what determines where to start the
aliasing. For example if you want to start at eth0:5 then CLONENUM_START
would equal 5.


----- Original Message ----- 
From: "Eric Koldeweij" <eric at no-sense.net>
To: <mohaa at icculus.org>
Sent: Wednesday, August 20, 2003 7:46 PM
Subject: Re: AW: AW: AW: [mohaa] Server Requirements, Questions & Traffic


>
>
> luke wrote:
>
> >Have you done this? My understanding of Linux is that this cant work. Of
> >course you have to alias the device to use different IP's on the same
> >NIC. But you cant have multiple processes running on the same port on
> >the same network card, regardless of whether you alias the IP's. I could
> >be wrong, though......
> >
>
> Unfortunately (well, fortunately for the community) you're wrong. Isn't
> linux great? ;)
> What you cannot do is bind the ANY address (listen on every IP addy)
> more than once on the same port. If you don't specify an IP addy on the
> cmd line using the +set net_ip argument, MOHAA will bind the ANY
> address, which means it'll listen on all IP addresses at once. In that
> case you cannot use the same port again (they're all taken by the first
> MOHAA). Use the +set net_ip and you can run as many servers on the same
> port as your server has IP addresses.
>
> To see if your server uses a single IP addy or all, use "netstat -uan".
> A MOHAA server listening on all IP addys will show up (among other lines)
as
>
> udp        0      0  0.0.0.0:12203             0.0.0.0:*
>
> Otherwise something like
>
> udp        0      0  213.206.85.18:12203     0.0.0.0:*
>
> will show up, the 0.0.0.0 replaced by the IP addy it's listening on.
>
> Hope this helps anyone struggling with this :)
>
> Eric.
>