Re: 'looking up xxxx' forever
On 2010-04-06 15:28, Stephen Powell wrote:
On Tue, 6 Apr 2010 14:20:11 -0400 (EDT), Hugo Vanwoerkom wrote:
But what would I be looking for?
You would be looking for DHCP-related packets that would
identify the length of the DHCP lease. I've never used wireshark;
I only know conceptually the kinds of things it can do; so if you
need specific help in this area, someone else will have to help you.
Wireshark (and tshark, it's CLI brother) is really handy about
decoding packets into human-readable form. Combine that with "grep
-iv" to filter out what you don't want to see.
My concern is that, since the upstream dhcpd sends the lease info at
the moment of negotiation, you'd need to start tshark *before* pon
and I don't know if tshark will see the new interface and start
capturing on it.
"History does not long entrust the care of freedom to the weak
or the timid." Dwight Eisenhower