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Bad pool size

Hello all. Im trying to set up a router. Rigt now it has a pool size of 128. I want it to be 400+.

Im trying to changing the subnet to 255.255.254.0 when ip is 192.168.1.1 but it wont accept when i tell the pool size to be 510.

When i click apply, it will go back to 128. What am i missing?

Don Johnston

You don't indicate what brand/model device so there's no way to know for sure. But there are two possibilities:

1) This device does not allow for super-netting. So change the IP address to a non-class C address. Try 172.16.0.0 with a /23 mask.

2) The device does not allow for a mask shorter than 24-bits.

Mike Kristensen

ASKER

oki. Its a ZyXel ZyWall 35.

Is there any specific thing i neda look for when trying to figure out the above you tell me?
I managed to get the pool to 253 when using subnet 255.255.252.0 but i aint really 100% sure how it works. Also because i might not understand it, due to a hidden limitation which i dont know of.

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Don Johnston

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Mike Kristensen

ASKER

Am i running RIP? What is that?

Why 172.16.0.0? And why 192.168.0.1 over 192.168.1.1? Im so lost. Normally i was running a server with range 192.168.1.1 - 192.168.3.254 was this bad?

The Zywall 35 wont let me increase the poolsize over 253, so i believe it might be a limitation from its perspective. I will read up on this in the Zywall datasheets.

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Don Johnston

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