[fiber] number of concurrent devices with direct public IPs from sonic

Internet access discussion, including Fusion, IP Broadband, and Gigabit Fiber!
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by paulcoldren » Wed Jul 05, 2017 11:30 am
I helped a friend oversee a sonic fiber installation in SF Mission yesterday.

The old DSL setup consisted of the sonic DSL/router/gateway device, with an airport extreme in bridge mode for better wifi performance. So, the sonic DSL/router/gateway device was doing NAT + DHCP for the network.

I didn't realize this initially, so I plugged the airport extreme directly into the new fiber ONT. Since it was in bridge mode, several devices in the apartment got direct public IP addresses from Sonic's infrastructure (no NAT, no local DHCP server in the apartment).

3 separate devices concurrently got public, routable IP addresses from Sonic, before I noticed and switched the Airport Extreme out of bridge mode (so it started doing NAT + DHCP internally).

What is Sonic's policy about this? Is it against the terms of service to have multiple devices connected directly to the ONT and receiving direct IP connectivity from Sonic? Will there at some point be technical limitations imposed on the number of concurrent DHCP leases?

My experience is with Cable systems, where a limit of 1 concurrent connected device is typically imposed by the ISP (i.e. only the first device will receive a DHCP lease; subsequent devices will not, unless you reboot the cable modem).
by dane » Wed Jul 05, 2017 12:07 pm
Our system will allocate a few IPs if requested - but we strongly suggest simply connecting one router, ideally the Sonic supplied equipment. Not using a NAT/Firewall router will expose hosts directly to the Internet, which can result in compromise.
Dane Jasper
CEO
Sonic
by jeremysf » Thu Oct 11, 2018 6:52 pm
Is this still the case, that it will allow multiple IP's? I have a 'home' router and a work device (aruba RAP) that I want to connect directly. It's worked since my fiber was installed, but it seems something may have changed and only one is allowed now?
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