Greetings all!
I just got a colocated server space and the ISP has given me an IP address and a
routable /29 subnet. Here's a partial snippet of the info they gave me (with
the real addressess changed for privacy)
==== WAN Address
Customer IP Address : 100.0.33.14
Netmask : 255.255.255.248
Broadcast Address : 100.0.33.15
Default Gateway : 100.0.33.9
==== Routed Network
IP Address Type : 100.0.43.152/29 Class-C Subnet
Number of IP Addrs : 6
Domain Name : example.net
Customer IP Addresses : 100.0.43.{153 thru 158}
Netmask : 255.255.255.248
Broadcast Address : 100.0.43.159
And they provided this chart:
-
|
| +----------+
| | Customer |
|------| Host #1 |
| .154 | |
| +----------+
- WAN - - Subnet - |
+------+ Net/Mask +----------+ Net/Mask | +----------+
| ISP | 100.0.33.8 | Customer | 100.0.43.152 | | Customer |
|Router|---- /29 -----|Colocation|---- /248 ----|------| Host #2 |
| | .9 .14 | Router | .153 | .155 | |
+------+ +----------+ | +----------+
** REQUIRED ** |
** DEVICE ** | +----------+
| | Customer |
|------| Host #n |
| .156 | |
| +----------+
|
-
I have a single server with Fedora Core3 (x86-64 2.6.10-1 kernel) installed, and
my intent is to use the iproute2 tools to set up aliases for .154, .155, .156,
etc. and then use IP Virtual Hosts in Apache.
So, to my question. I could get a router for routing the /29 subnet as the ISP
suggests, but can I use my Linux machine to do this? Can I mount eth0 as
100.0.33.14 and then setup the 100.0.43.152-158 as aliases and write the routing
so that everything works? I have read chapters 3 and 4 of the LARTC, and I
think it may be possible, but it's just not clicking yet as to how I might be
able to do this.
And to add one last twist to this... let's say that I can do the above, what if
I wanted to take one of those IP's from the /29 subnet and route it on to
another system plugged into my eth1 while maintaining all of the other IP's as
aliases?
Am I dreaming? Can you help me?
Thanks!
Ray
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