[plug] Multiple WAN IP's routed down DSL line

[Shannon Carver]

Hi, 

 

We've just got a /29 subnet routed down our DSL connection which I'd
like to setup to allow us to expand the number of external DNS/Web
Servers we have, active on the net.  Previously, I'd bought one more IP
Address (xxx.xxx.108.32) to go on top of our Primary IP
(xxx.xxx.103.103) which I set up as such:

 

auto eth1:1

iface eth1:1 inet static

  address xxx.xxx.108.32

  netmask 255.255.255.255

 

Where eth1 was, of course, the external interface.  This seemed to
simple to me, but it worked, so I haven't bothered looking into it any
further, up until now.

 

Now, to apply this new IP range, (xxx.xxx.66.104/29), I've gone a bit
out of my depth of understanding.  What steps would I have to take to
make this work?  Is it simply a process of:

 

auto eth1:2

iface eth1:2 inet static

  address xxx.xxx.66.104

  netmask 255.255.255.248

 

or creating an alias for every IP on my new subnet (i.e for 66.105 -
66.110).  And do I need routes as well..

 

As you can see, my understanding on this is not great, and I've been
looking into it all morning, thought the best place to ask, would be
here.

 

The syntax used above is with Debians (/etc/network/interfaces), but
could just as easily have been created with the relevant (ifconfig)
commands.

 

Any help is, as always, much appreciated

 

Shannon Carver

Prestige Services & Technology

 

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