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VLAN with 10.0.0.0/8 addressing scheme

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Yan Henrichon
Frequent Advisor

VLAN with 10.0.0.0/8 addressing scheme

Quick question.

What do you think about 5 VLAN that are in the 10.0.0.0/8, 10.0.1.0/8, 10.0.2.0/8 and so on address range? I try to find arguments to give to my customer to change this to /24 subnet (less than 100 nodes per VLAN) but can’t find the answer.

Any thought?

Thank you.
2 REPLIES
Michael_Breuer
Esteemed Contributor
Solution

Re: VLAN with 10.0.0.0/8 addressing scheme

Hi Yan,

best argument to your customer: It will not work for you ;-) You cannot configure two VLAN interfaces in the same network. And your mentioned networks belong to the same network 10.0.0.0/8.
That means that you have to increase the subnet mask and assign each VLAN to a different IP subnet.
i.e.:
VLAN 11 -> 10.0.11.0/24
VLAN 12 -> 10.0.12.0/24

and so on.

Cheers,

Michael
Ingentive Networks GmbH
Yan Henrichon
Frequent Advisor

Re: VLAN with 10.0.0.0/8 addressing scheme

Thank you very much Micheal.