Mixing ip_addr and u32 does bad things on Ultrasparc.
Although both have the same size. Fascinating.
It was not catched by compiler because of varargs.

Replaces old OSPF packet tracing messages with
uniform messages with packet dumps.

are in single database. This avoids duplication of external LSAs and
fixes bug in external LSA distribution.

Packet receiving clean up.

	- metric is 3 byte long now
	- summary lsa originating
	- more OSPF areas possible
	- virtual links
	- better E1/E2 routes handling
	- some bug fixes..

I have to do:
	- md5 auth (last mandatory item from rfc2328)
	- !!!!DEBUG!!!!! (mainly virtual link system has probably a lot of bugs)
	- 2328 appendig E

Finally, I found the bug reported by Andreas Steinmetz. FIXED.

DIRECT acks can be sent in one packet now.

Please note that the only calls which don't add newlines automatically
(i.e., don't print a full line of output) are debug() and DBG().

More robust.

Debug cleanup.
Retransmiting of unacknolegded LSAs

Oh, I'm an idiot. I sent LSACK, but in header was LSUPD. :-(

kills gated or Cyclades OSPF implementation. :-)