Understanding IP Ranges
Our company IP addressing is as follows:
10.213.0.0/19 or 255.255.224.0 (1st Network)
10.213.253.0/29 or 255.255.255.248 (Router network to Sister Company)
10.213.253.8/29 or 255.255.255.248 (Router to ISP)
On our MPLS Router (Inside IP 10.213.253.2/29) I have been asked to supply an IP address for loopback on the range 10.213.0.x/32 or any /32 host IP.
What range of IP would match this?
10.213.0.0/19 or 255.255.224.0 (1st Network)
10.213.253.0/29 or 255.255.255.248 (Router network to Sister Company)
10.213.253.8/29 or 255.255.255.248 (Router to ISP)
On our MPLS Router (Inside IP 10.213.253.2/29) I have been asked to supply an IP address for loopback on the range 10.213.0.x/32 or any /32 host IP.
What range of IP would match this?
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so if its a flat /19 network then you will not be able to give the router anything in the 10.230.[0-31].x range as it will overlap.
You will have to go outside of that block in order to do that.
Is the deal such that each company under the conglomerate got a separate block of addresses to use? If so you will have to see what is free. Since you guys are flat with a /19 nothing is available for you to use out of that block. The router will not let you configure an overlapping ip address on the same router.
You will have to go outside of that block in order to do that.
Is the deal such that each company under the conglomerate got a separate block of addresses to use? If so you will have to see what is free. Since you guys are flat with a /19 nothing is available for you to use out of that block. The router will not let you configure an overlapping ip address on the same router.
Can you say what the Loopback IP will be used for?
Anyway, I would suspect you could maybe use a /32 from the 10.213.253.0/24 network, e.g. 10.213.253.255/32 ...
Anyway, I would suspect you could maybe use a /32 from the 10.213.253.0/24 network, e.g. 10.213.253.255/32 ...
ASKER
Sorry my mistake.
The MPLS router is outside of our firewall on a subnet of 10.213.253.0/29.
As this router requires the IP for loop back could I not simply exclude .31 portion from the internal pool and use one address on said router? e.g. 10.213.31.1 /32.
The MPLS router is outside of our firewall on a subnet of 10.213.253.0/29.
As this router requires the IP for loop back could I not simply exclude .31 portion from the internal pool and use one address on said router? e.g. 10.213.31.1 /32.
No because your router has an inside interface on the 10.213.0.0 / 19 interface. If you created another interface on the router using 10.213.31.1 the router will bark at you and tell you that you are trying to use an overlapping interface. You have to go outside the 0-31 range.
You can re-subnet your network so you don't have this problem in the future. You said you want to grow, but you can't grow in this address space unless you re-address your network and use it more efficiently.
You can re-subnet your network so you don't have this problem in the future. You said you want to grow, but you can't grow in this address space unless you re-address your network and use it more efficiently.
This really has nothing to do with the pool of addresses it has all to do with the fact that it overlaps.
ASKER
We have been allocated the range listed for our own use.