how to find IP address of server showing up under Shared in window left panel

I'm looking at the router's embedded web pages, but the name that the Finder lists for this thing is not showing up anywhere else. I need to know what IP it is in order to ping it or find it in the router's logs or DHCP tables. How do I find out what IP Finder has for this? When I right-click on it and choose "get Info", all it says is that "kind: PC server".

> If it shows up by name in finder, then you should be able to ping it by name.

nope,

% ping brw008092c476a5

ping: unknown host brw008092c476a5

Before I change my password on every device in the house, I'd like to know what Finder knows: what is this thing's assigned IP? Then I can see if it's one of the hardware ethernet addresses I allow on the network.

> Do you own a Brother printer?

yes! There is one on the network, a shared Brother printer. Is that what this thing is? I guess that's ok then. Sure wish right-clicking on it would give me the IP though.

> Run arp -a on any of your machines, and eliminate the known MAC addresses of your equipment from this list. You will get a remaining MAC and an IP, both.

I see. But what about the more general case, if there's > 1 unknown - arp doesn't list the name that Finder shows. Is there anyway to match them up exactly, to see what IP Finder knows internally, or make arp show the name Finder is using and showing me in the window?

>

this looks just like what I need but I get

%bash

bash-3.2$ for mn in `arp -a | awk '{print $2}' | sed -e 's/)//g' -e 's/(//g'`; do nslookup ${mn}; done

Server: 8.8.8.8

Address: 8.8.8.8#53

** server can't find 0.1.0.10.in-addr.arpa.: NXDOMAIN

Server: 8.8.8.8

Address: 8.8.8.8#53

** server can't find 1.1.0.10.in-addr.arpa.: NXDOMAIN

Server: 8.8.8.8

Address: 8.8.8.8#53

** server can't find 3.1.0.10.in-addr.arpa.: NXDOMAIN

Server: 8.8.8.8

Address: 8.8.8.8#53

** server can't find 4.1.0.10.in-addr.arpa.: NXDOMAIN

Server: 8.8.8.8

Address: 8.8.8.8#53

** server can't find 5.1.0.10.in-addr.arpa.: NXDOMAIN

Server: 8.8.8.8

Address: 8.8.8.8#53

** server can't find 6.1.0.10.in-addr.arpa.: NXDOMAIN

Server: 8.8.8.8

Address: 8.8.8.8#53

** server can't find 7.1.0.10.in-addr.arpa.: NXDOMAIN

and so on, all the way until

Address: 8.8.8.8#53

** server can't find 255.255.254.169.in-addr.arpa.: NXDOMAIN

> Do not point your local LAN DNS to Google's DNS. This hides other issues in your LAN.

sorry, I'm not sure what you mean: what did you detect from the output I provided, and what am I setting incorrectly (and where)?

> Do you have a router/gateway between you and your ISP?

yes, I have a Netgear router. Should I set its ip address (10.0.1.1) as the "DNS" on my Mac's Network preferences panel instead of the Google DNS? Does the router know how to provide DNS info from elsewhere, for those machines not on my LAN (do I need to then set an external DNS server's IP address in the DNS field on the router, perhaps the 8.8.8.8)? thanks!

> What model is the Netgear? Usually, the DHCP server on your network also acts as a mDNS responder.

WNDR4500

so I should set the DNS for all my machines here as the IP of the router (10.0.1.1), and the router's own DNS setting should be 8.8.8.8 ?

Ok. Just to make sure: I now re-ran the bash command you gave me earlier, and see this:

bash-3.2$ for mn in `arp -a | awk '{print $2}' | sed -e 's/)//g' -e 's/(//g'`; do nslookup ${mn}; done

Server: 10.0.1.1

Address: 10.0.1.1#53

** server can't find 0.1.0.10.in-addr.arpa.: NXDOMAIN

Server: 10.0.1.1

Address: 10.0.1.1#53

** server can't find 1.1.0.10.in-addr.arpa.: NXDOMAIN

Server: 10.0.1.1

Address: 10.0.1.1#53

** server can't find 3.1.0.10.in-addr.arpa.: NXDOMAIN

and so on, for all the addresses. Is this correct now?