RV220w and Class B Subnets

[gdnkhn1998]

Due to the way our current network is setup is there anyway for a RV220W to allow subnets of 255.255.0.0 in 192.x.x.x ip range.

Recenttly bought the RV220w and its web interface doesnt allow it automatically changes it to 255.255.255.0

Can anyone help?

Thanks

G N                  

[jonatrod]

Hi Geoff, thank you for using our forum, my name is Johnnatan I am part of the Small business Support community. As far I know the RV220W support class B, could you send us a screenshot of the error you are having? Did you try using another subnet; I mean such 10.1.0.0 255.0.0.0 instead of 192?

I hope you find this answer useful

“Please rate useful posts so other users can benefit from it”

Greetings, 
Johnnatan Rodriguez Miranda.
Cisco Network Support Engineer.

[gdnkhn1998]

Hi Johnatan

I will take a screenshot at work tomorrow from the router and post it here - i have put the WAN IP in ok on a 172.x.x.x range ok but the 192 in the LAN IP wont allow it the error message says out of subnet range or something to that effect and changes it to 255.255.255.0

Thank you in advance

G N

[Servaas te Brake]

Johnathan should have known the real answer, but anyway here it is:

No, at the moment that's not possible.

Cisco (in all it's wisdom) has decided that small business routers should not support B class networks...

see https://supportforums.cisco.com/thread/2181628 for the answer....

It's just a software restriction somewhere...

[Clayton Sill]

Yeah Cisco doesn't really support a class B subnet with there Small business devices at least as a DHCP server. Now it could possiable understand a Class B subnet (site to site VPN) but thats probably about how fare that goes. I know I've seen site to site VPN tunnels work to a ASA when they are using a class B subnet. Maybe the ISA could do this though? I haven't gotten too much experience with those yet though.

Hope that helps out.

Thanks,

Clayton Sill