You are running in ethernet mode. Switch to IP mode.
Why can I only see computers on my own
network?
See question above
I can't see any text, just little squares.
What gives?
Go to preferences and change the text font. Make sure you
save your changes
Is it possible to see just traffic within
my network? Is it possible to see just traffic to/from the
internet?
You can indeed filter traffic. Have a look at the filter
entry in preferences->capture->filter
Suppose your network address starts with 213.227
If you only want to see traffic within your network,
then the proper syntax is ip and src net 213.227 and dst net 213.227
Or if you want to see connections to/from outside your
network then try something like ip and ((not src net 213.227) and dst net 213.227)
or (src net 213.227 and (not dst net 213.227))
What's the format for
/etc/ethers?
Just pairs of Ethernet addresses and names, like 00:40:33:35:80:5F LAZARO
00:40:33:35:80:6D NEBAJ
00:C0:26:A2:58:FE ARGOS
How do I find the ether address of an IP
node?
Here is an example: argos:~# ping lazaro
PING lazaro.tattoine.es (192.168.1.1): 56 data bytes
64 bytes from 192.168.1.1: icmp_seq=0 ttl=255 time=1.8
ms
round-trip min/avg/max = 1.6/1.7/1.8 ms
argos:~# arp lazaro
Address HWtype HWaddress Iface
lazaro.tattoine.es ether 00:40:33:35:80:5F eth0
Of course, you can only do this for nodes in your
network.
How do I find the IP corresponding to an
ether address?
You could, for instance, use
argos:~# tcpdump -f "ether src 00:40:33:35:80:5F" -n
tcpdump: listening on eth0
10:34:11.116930 192.168.1.1.7002 > 192.168.1.2.1031:
P 76753564:76753576(12)
There you have it, the IP src is 192.168.1.1
Hosts keep moving because they come and
go... What can I do?