The modem management subnet is stream-specific (it shares stream's `wan`
interface), so it no longer belongs in the shared routing-common. Drop the
`modem` network assignment and configure the address directly on stream's
`wan` (modemV4). The firewall reject and DNS wan-A-record skipBroadcasts that
existed only because of the modem move to per-box options
`my.homeRouter.{firewall.untrustedRejectV4,dns.wanSkipBroadcasts}`, set solely
by stream. river needs neither: its ONT sits on a separate interface already
blocked by the interface-based forward rules.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
jackos1998
49de78d47f