Typing "arp" does seem to show all IP's in the network here. EDIT: "arp -n"

set top box and my pc are plugged into the same router. And the router itself handles two different networks. One for iptv (and stb works only on it) and one for my home network (which cannot be used by that stb).

What is stb short for?

Try the arp-scan utility.

# arp-scan -I eth0 192.168.1.0/24

You can replace eth0 with whatever other interface you have.

Hope that helps.


stb = set top box.

Are you sure your provider is actually providing your TV over IP?

Just because it looks like an ethernet port doesn't mean it's automatically carrying Internet Protocol traffic.

If your ISP's fibre is going direct in to your box then it can act as an NTU for many types of data transfer protocol and they merely provide an RJ45 handoff between the NTU and the STB in order to allow you to use standard cabling.

I don't know if my friend's provider provides tv over ip too. It is satellite tv that she has, from the same company that provides internet access over the telephone line. I think the wire between the router and the satellite tv decoder is meant to report to base what she's watching and in return she gets more program information on tv and possibly some more channels are decoded from the satellite signal or transmitted as tv over ip.

My router/switch (Frits!BOX) also splits the network into the private LAN (192.168.178.*) and (optionally) another one for the TV receiver, which is 192.168.179.* (and my TV receiver box _does_ use DHCP in that network, so gets a .20 address - the pool of the Fritz!BOX starts at 20, reserving the lower addresses for fixed-IP devices).

Luckily the menu's of the router do list all of the "connected devices":
(LAN 2 connects to an old 10 MBit/s repeater with coax, but that's no problem as the older machines connected to that don't have any faster network interfaces anyway).
BTW: only LAN 1 and 2 can do 1 GBit/s, so I could have connected the repeater to LAN 3 (which is currently free) too and leave LAN 2 free for a future faster network connection. But then, I can do that anyway when the need arrives.

You can follow the steps by which use can get IP address

1. you can take help of web access to your router, you connect it to your router and find the IP addresses of all networked devices. The router displays Static and Dynamic client lists with there name, IP address and MAC address of the connected devices.

2. Another method is to pinging your network from a computer connected to the network, and lookup an arp table. On your computer, click [Start] -> [Run...] and type "cmd" and [Enter]. Type "ipconfig" to find your network address. The network address is found by performing a logical AND operation on your IP address and the subnet mask.

3. You may also use "netstat -r" command to find an IP address of all network routes. However, if your printer has problem communicating with other network devices, you may not be able to find IP address of the printer using "netstat" command.

Hope this will be helpful to you