on area1 between r4 and r5 is v-link r6 loopback55 is advertised on area2 when i run authentication on r4's area0 it looses the neighborship with r5 on interface virtual link so r4 cant receive r6 lo 55 and r6 cant receive r4's routes but r5 has all ...

hi guysi need documents about remote brigding and remote bridging over ppp (overview and configuration) couldnt find any useful one thanks 4 ur help