[mythtvnz] hdhomerun doesn't connect on restart when connected directly to the lan port

[Steve Hodge]

On Sat, Apr 27, 2013 at 1:39 PM, Paulgir <paulgir at gmail.com> wrote:

> Apr 27 13:13:42 myth dhcpd: No subnet declaration for eth0 (no IPv4
> addresses).
> Apr 27 13:13:42 myth dhcpd: ** Ignoring requests on eth0.  If this is not
> what
> Apr 27 13:13:42 myth dhcpd:    you want, please write a subnet declaration
> Apr 27 13:13:42 myth dhcpd:    in your dhcpd.conf file for the network
> segment
> Apr 27 13:13:42 myth dhcpd:    to which interface eth0 is attached. **
> Apr 27 13:13:42 myth dhcpd:
> Apr 27 13:13:42 myth dhcpd:
> Apr 27 13:13:42 myth dhcpd: Not configured to listen on any interfaces!
>

Clearly you have misconfigured DHCP. It's probably working after 20 seconds
because it's defaulting back to link-local addresses.

I know nothing about that DHCP server, but I think this looks wrong:

> host myth-eth0 {
>  hardware ethernet 14:da:e9:dc:51:a1;
>  fixed-address 10.99.0.1;
>  }
>

DHCP servers listen on a network interface - it can't function until the
interface has an IP address. So obviously you can't use a DHCP server to
assign an IP address to the interface that the DHCP server is supposed to
be listening on. But that's what this configuration seems to be trying to
do. You should assign 10.99.0.1 to eth0 in the normal way (whatever that is
for ubuntu) and leave this section out.

 subnet 10.99.0.0 netmask 255.255.255.0 {
>  range 10.99.0.50 10.99.0.250;
>  option subnet-mask 255.255.255.0;
>  option broadcast-address 10.99.0.255;
>  option routers 192.168.2.2;
>  }
>

I can't imagine you need the "option subnet-mask" line in there - you
already supplied the netmask.
I assume "option routers" is setting the gateway on the client interface.
But the client is not going to be able to connect to 192.168.2.2 - it's not
on the same subnet and there is no router or anything to help. This should
be set to the address of the myth box on that subnet, i.e. 10.99.0.1. If
the hdhr needs connectivity to the rest of the network then you'll need to
do some iptables config on the myth box.

Cheers,
Steve
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