[mythtv-users] HDHomerun and network problems?

[Brian Wood]

R. G. Newbury wrote:
> Andrew Close wrote:
>> On 10/19/07, Jay R. Ashworth <jra at baylink.com> wrote:
>>> On Fri, Oct 19, 2007 at 01:56:38PM -0500, Mitch Gore wrote:
>>>>    I tried to move my HDHR off the network but couldn't figure out how to set
>>>>    up a dhcp server on just that interface. Does anyone know how i can bridge
>>>>    the two Ethernet cards so i pulls a DHCP address from my router?
>>> No, but I'm pretty sure you can put dhcpd up and tell it only to listen
>>> to that private interface.  You want it on a separate subnet, anyway.
>>> You can't static address the Homerun?
>> unless it's changed in the last two weeks, the HDHR uses DHCP only.  i
>> just bought one and will be attempting to set it up directly off my
>> MythBox too.  the docs on the silicondust website state DHCP...
> 
> It will actually work with a static address, although I cannot remember 
> exactly how that is done.
> Instead, what I did was to turn on DHCP on the router (it's a Netgear), 
> allow the router to assign the DHCP address (the first one in the 
> allowed range, nothing else using DHCP), then I allocated or reserved 
> that IP address to the MAC address of the HDHR. Without shutting down, I 
> then adjusted the allowed DHCP range to exclude the IP assigned to the 
> HDHR. The HDHR continued to work, so then I turned off the DHCP server 
> on the router...The whole setup has gone through a couple of power 
> cycles at each end (HDHR and router) and together (local power outage) 
> but the router continues to re-allocate the same, effectively static 
> address to the HDHR, even though there is no DHCP server running.


Netgear's little "ProSafe" VPN firewalls are a good deal at about $60
US. You get a router, firewall, 4 port switch, DHCP server and hardware
VPN appliance all in one. I think you can get an 8 port unit for $80 or so.

You can have the DHCP server assign an IP based on the MAC address, as
any reasonable DHCP server should do.

> This depends upon the capabilities of the router BIOS. The Netgear has 
> more capabilities in this area than the Linksys at work does natively or 
> with DD-WRT..

I agree. Linksys routers claim to be an SPI firewall, but you have
absolutely no control except for on/off. The Netgear F/W has reasonable
control, even based on time-of-day if you want.

beww