Other Help Topics :: Possible internet vulnerability?

As already described, it's not a vulnerability. One thing you can do to check on any port to see what's happening is:
netstat -anp | grep N
where N is the port number. So if N=68, you would get back a line that looks like this:
tcp 0 0 0.0.0.0:68 0.0.0.0:* LISTEN
(with portnumber and process after LISTEN if you're root)

...and you'll also get back any other network information with "68" in it (which could be a lot if you're connected to a LAN like you are - 192.168.x.x since grep will catch every line with 68).

edited

Hi buzzard!

If you would like to check the port the way mentioned in the previous post and haven't installed gnu-utils I think it should be like this:

netstat -an | grep 68

or whatever port you want to check. Otherwise you would just get a busybox error (if you haven't dropped the p).

Have fun everybody out there,
meo

original here.