nanog mailing list archives

Re: FTTH ONTs and routers


From: Jared Mauch <jared () puck nether net>
Date: Thu, 15 May 2014 13:18:23 -0400


On May 15, 2014, at 1:11 PM, Jean-Francois Mezei <jfmezei_nanog () vaxination ca> wrote:


It had been my impression that ONTs, like most other consumer modems,
came with built-in router capabilities (along with ATA for voice).

The assertion that ONTs have built-in routing capabilities has been
challenged.

Can anyone confirm whether ONTs generally have routing (aka: home router
that does the PPPoE or DHCP and then NAT for home) capabilities?

Are there examples where a telco has deployed ONTs with the router
built-in and enabled ? Or would almost all FTTH deployments be made with
any routing disabled and the ONT acting as a pure ethernet bridge ?

Some are and some don't.  For example the ZHONE active ethernet boxes are Linux on the inside and you can do a variety 
of different things with them, either making them do the NAT or be bridged back to the aggregation gear.

- jared

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