I don't understand this stuff about networks and workgroups. Do you think it will become obvious to me when I try it? All I am likely to do in the imminent future is try to set up a Samba/CIFS share on the HDR-FOX (somebody advise which way to go please), and auto-mount it from the HD-FOX.
I might get a bit more ambitious when (if) I set up my dream RAID NAS/media server.
Home networks are fairly simple to set up
Each device (PC/Laptop etc) you want to connect to the network has to be given it's own IP Address and Subnet Mask, and if it needs to have access to the internet, then the Gateway and DNS Server will also need to be set
All these setting are in the format of xxx.xxx.xxx.xxx, where the x's will be a number
The Internet Assigned Numbers Authority (IANA) has reserved 3 sets of IP Address ranges specifically for Local Area Networks (LAN)
10.0.0.0 - 10.255.255.255
172.16.0.0 - 172.31.255.255
192.168.0.0 - 192.168.255.255
Most common home ADSL Routers use the 192.168 range of addresses, but from experience, Corporate networks tend to use the 172.16 addresses but not always
ADSL Routers also come with what is called a Dynamic Host Configuration Protocol (DHCP), which can automatically assign the IP Address, Subnet Mask, Gateway and DNS Server to the device that is connected to the network, so saving you the manual configuration
One of the problems with DCHP is that if you turn off one of the devices, the next time it connects to the network, it may be given a completely different IP Address from the one it was assigned previously - this can be overcome however, by "binding" the IP Address to the device's Physical MAC Address within the Routers configuration options
The Physical MAC Address will come in this format xx-xx-xx-xx-xx-xx, and is a unique number given to each device (e.g. 00-23-17-D2-E5-4E)
This will then always allow a specific device to always connect using the same IP Address
If you don't want your Router to use DHCP, you would need to turn it off in the Routers settings and then manually enter the IP Address, Subnet Mask, Gateway and DNS Server on all you devices - if using this, you don't need to 'bind' the MAC Address, as the device will always use the same IP Address when it's turned on
A Workgroup is a collection of computers on a LAN that share common resources and responsibilities - this is a basic bog standard way of grouping home computers on a network - On a Windows 7 PC, it will automatically default this to 'workgroup', but older Microsoft OS's may default to other workgroup names - I seem to remember that one that was used was MSHOME
A domain is a collection of security principals that share a central directory database
This is more sophisticated and complicated version of a workgroup
Once a domain is set up, only computers that have been previously set up in the central directory database are allowed to connect to the network
This is mainly used in Corporate networks, so that the company can restrict what devices can connect to their network - it will also allow you to restrict tasks that can be done on those devices
Domains do not tend to be used in a home environment, as it is overkill for what you would need at home
This is a very generalised description of a domain, and if you need to know more there are plenty of articles on the Internet
The HDR and HD don't have anywhere for a workgroup or domain to be entered in to their settings, so you can ignore it
I hope I've explained that correctly, I'm sure someone will correct me in I'm wrong