Changing the subnet mask - what will happen to the VPN

SOLVED
Tokerau
Just browsing

Changing the subnet mask - what will happen to the VPN

I am new to Meraki.

 

We have two locations connected with a site to site VPN , MX's on both sides. The HQ side has a subnet of /22 and the remote is /24 on its LAN. I need to change the subnet mask at the remote site to /22 to add more subnets. I would also like to change the gateway IP to .1, it is currently .250

 

What will happen to the VPN if I change the subnet mask and the gateway IP? Will I have to reconfigure it, or will it see the changes and adjust on its own?

 

Thanks!

 

 

1 ACCEPTED SOLUTION
CptnCrnch
Kind of a big deal

VPN will reconfigure itself automatically. Will it run without any hickups? Possibly not, so I‘d recommend performing this change with a planned (shortish) downtime.

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3 REPLIES 3
CptnCrnch
Kind of a big deal

VPN will reconfigure itself automatically. Will it run without any hickups? Possibly not, so I‘d recommend performing this change with a planned (shortish) downtime.

Thank you! This will be done after hours, so downtime will not be a factor.

This makes the job much easier.

Inderdeep
Kind of a big deal

@Tokerau : I agree with @CptnCrnch there might not be any issue but take downtime for this change

Regards
Inderdeep Singh
www.thenetworkdna.com ( Awarded by Cisco IT Blogs award 2020)
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