Friday, November 5, 2021

ISP routing /29 over /30 P2P, IP wastage

So we have a /30 P2P link from our ISP and an additional /29 routed over the /30 with static routes on their side.

1.1.1.2 being our side of the /30 link

1.1.2.8/29 being the /29 routed over the /30

Static route from them:

1.1.2.8 255.255.255.248 1.1.1.2

This results in us being able to use only 6 IPs from the 8 in the block. 1.1.2.9 - 1.1.2.14

Instead of that, can we ask them to route each individual IP from that block as a /32 so that we can use all 8 IPs?

eg:

1.1.2.8 255.255.255.255 1.1.1.2

1.1.2.9 255.255.255.255 1.1.1.2

...and so on



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