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ISIS net command

Hello,

router isis

net 49.0001.0000.0000.000a.00

the iso address are they always 49.0001.0000.MACOF.ROUTER.00 or they more complex can you explain how to make an address or pick one.

Thank you

1 REPLY
Purple

Re: ISIS net command

Hi,

When using ISIS, the address has to be of the formed:

AreaID + SystemID + NSEL

The bit that you are enquiring about is the SystemID. While it is often based on the MAC address, there is no such requirement. You can just as easily set it to something like 0000.0000.0001 and 0000.0000.0002 if that is more convenient.

One other convention is to use to IP address of the system, after padding all octets to 3 digits. For example, if you had an IP of 192.168.0.1, you could then use the following as the system ID: 1921.6800.0001.

That is done by first writing down the address as 192.168.000.001 and then grouping it into 3 groups of 4 digits.

Hope that helps - pls do rate the post if it does.

Paresh

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