11-09-2012 04:30 AM - edited 03-04-2019 06:05 PM
We currently have a /25 network. We’re getting a tenant in who’ll be sharing our connection, and we thought we’d split the /25 and share it.
Currently things look like this (IP subnet changed for the example):
80.34.55.128/25
With a configured outside route of 80.34.55.129
ISP – Switch – R1 80.34.55.128/25
What I’m aiming to achieve:
80.34.55.128/26
80.34.55.192/26
ISP Router– Switch – R1 80.34.55.128/26
|
|------R2 80.34.55.192/26
Would this be possible without having the ISP to make any changes on their managed router?
Any help / clarification, appreciated.
Thanks.
11-09-2012 04:41 AM
In case it makes a difference, R1 and R2 will be Cisco ASA firewalls running NAT.
11-09-2012 05:29 AM
You're going to have to put the external interfaces of both r1 and r2 in the same /25 subnet.
Sent from Cisco Technical Support iPad App
11-09-2012 05:32 AM
Actually, you can put r1 in a /26, but you're going to have to put r2 in a /25 in order to reach .129.
Sent from Cisco Technical Support iPad App
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