Community Forum

/16 subnet not an option??

Drew_D
Regular Visitor

/16 subnet not an option??

Used a netgear modem up until it died yesterday. Decided to give comcast modem a try.  Prior I was running 192.168.x.x /16.  Comcast modem will not let me select it, even though it is valid.  This is going to cause me either great pain, or make me take it back and get a new netgear.  Any way to force this dang thing to allow it to take that subnet.  WHY would they block it when it is a valid range?!?!?  My modem is the TG1682G.

BruceW
Gold Problem Solver

Re: /16 subnet not an option??

Comcast's gateways are extremely limited as far as even slightly advanced customization features are concerned. AFAIK it is not possible to configure them for a /16 network -- they're /24 only.

Drew_D
Regular Visitor

Re: /16 subnet not an option??

I can change to the 10.x.x.x range and have /16 available...the limit of using a /16 on the 192.168.x.x network is an arbitrary limit put in place by comcast.