m0n01_LAN <--> m0n02_LAN over internet

From:	"Slavcho Cekov" <scekov at freemail dot com dot mk>
To:	<m0n0wall at lists dot m0n0 dot ch>
Subject:	m0n01_LAN <--> m0n02_LAN over internet
Date:	Thu, 6 Jan 2005 22:44:30 +0100

Hi I have m0n01 that is used for sharing internet in m0n01_LAN and m0n02 for sharing internet in
m0n02_LAN. Both have WAN that is connected to internet via PPPoE. 
1 . I like to know a way to make possible computers from m0n01_LAN and m0n02_LAN to be seen each
other ???
2. IP adress of m0n01_WAN and m0n02_WAN is probably changing at some time of the day. After changing
m0n01_WAN should tell to m0n02_WAN new IP and recconect automaticlly, also if m0n02_WAN change IP it
should tell to m0n01_WAN new IP and recconect automaticlly.How to implement this ??
Thanks.