Accessing DOCSIS diagnostics from within/behind FreeBSD router

Steve Bertrand iaccounts at
Mon Dec 8 11:46:01 PST 2003

> I have a Motorola SB5100 cable modem directly attached to a FreeBSD router 
> (running ipfilters/ipnat). The external network is a comcast segment, and is 
> assigned a dynamic IP. The internal network is routed on 192.168.1.x, where 
> the router is
> The trick is, the cable modem is on the "external" side, but apparently 
> listening on for HTTP requests (for its diagnostics report).
> Is there anyway to access this diagnostic page without temporarily plugging 
> the CM into a Windows box?

Since 192.168.1.x subnet is on the inside of the network, your FBSD box
will never route a request for an IP on that network outbound by

I may be shown up here, but you will probably be best changing your
internal network to another subnet 192.168.0.x perhaps, and then your
FBSD router should pass toward the Internet a request for,
and hopefully the comcast modem will catch it.


> Thanks,
> Seth Henry
> _______________________________________________
> freebsd-questions at mailing list
> To unsubscribe, send any mail to "freebsd-questions-unsubscribe at"

Steve Bertrand
Northumberland Network Services

t: 905.352.2688

More information about the freebsd-questions mailing list