thanks gentlemen. Chris - its an Icon Consumer Box from Ipstar ipx-2200. I figured no one else on the list would have one though...
I now know possibly a great deal more than I really wanted to know... I had always wondered what the subnet was all about. I'll try Steve's suggestion first and let you know. Next step as Volker suggests is a proper firewall etc and I was going to try ClarkConnect for that. thanks for your time on this grey sunday morning - a good time for messing about with networking I think. - D On Sun, Oct 5, 2008 at 10:31 AM, Steve Holdoway <[EMAIL PROTECTED]>wrote: > On Sun, 05 Oct 2008 09:42:28 +1300 > David Lowe <[EMAIL PROTECTED]> wrote: > > > Hello cluggers, hope someone can take 5 minutes to give me a hand... > > > > I've just installed a two-way satellite modem (because I live way out in > the > > styx and can't get anything else). It includes a DHCP server which I > decided > > to start using; previously everything was static. But I have one machine > (my > > MythTV server) that really needs to keep its static IP address. I have > > worked out how to 'reserve' it's address on the DHCP server by specifying > > it's MAC address. I'm not certain it works yet but that's not my > problem... > > > > My problem is that the DHCP server hands out addresses in the range > > 192.168.5.11/254. It's Ethernet interface is 192.168.5.100/255.255.255.0 > . > > But I want to leave my server with a static address of 192.168.1.201(its > > easier to leave it alone rather than have to shag around with mySQL > issues). > > The result is that the server disappears off the network. I guess it's > the > > '5' in the IP address that's causing the problem... but from my limited > > understanding, I thought internal address were internal and it should not > > matter. > > > > I guess I can work around the problem by either reconfiguring (or > disabling) > > the DHCP server (but not sure if I might stuff anything else up) or the > > server (don't really want to face the drama of changing the host of a > MythTV > > server) - so I thought I would ask first: why can't I mix IP addresses > like > > this? > > > > tia > > > > - David > > > The problem is that they're in diferent subnets ( 192.168.1 and 192.168.5 > ), and so are invisible to each other. There are 2 ways to fix this. You can > either relax the netmask to just use the first 2 octets (192.168) to define > the subnet (192.168.0.0/16) instead of the default 3, or to reconfigure > dhcp to offer ip addresses in the 192.168.1 subnet. > > Personally, I'd go for the second option - reconfiguring DHCP to offer from > a range in the 192.168.1 subnet: it should be as simple as replacing the 5 > for a 1 in the right config file - and make sure the range doesn't include > your static ip address for the Myth box. Sounds like you've got well started > with this. You'll need to refresh the existing clients once thats done to > get them all using the new subnet. > > hth, > > Steve > > -- > Steve Holdoway <[EMAIL PROTECTED]> >
