[mythtv-users] Residential DHCP (was: Re: Help debugging failed HDHR recordings)

[Nick Rout]

On Tue, May 10, 2011 at 4:41 PM, Jay Ashworth <jra at baylink.com> wrote:
> ----- Original Message -----
>> From: "Julius Roberts" <hooliowobbits at gmail.com>
>
>> I heard recently
>> (http://www.mythtv.org/pipermail/mythtv-users/2011-January/307965.html)
>> that you're supposed to add the HDHR to myth using it's device ID, not
>> via it's ip address. I was having an issue with recordings being cut
>> short prematurely, this fix seems to have worked for me.
>
> This seems like as good a time as any to make a somewhat obscure point, that
> may be relevant to that exchange:
>
> On a residental RFC 1918 network, IP addresses are commonly assigned by
> a DHCP server *inside your edge router*.  Most consumer routers *do not* have
> NVRAM caching for that sort of parameter, and therefore don't keep a local
> list of the leases they hand out.

All good points, my use case is to allocate all my normal computers a
'fixed' ip address on the router, so the clients can all still use
dhcp, but aloways get the same IP address. Casual users like friends I
let use their phones/laptops will get a dynamically allocated address,
but they are less rone to the problems we are discussing.