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The problem of OSPF peer establishing

Publication Date:  2012-09-21 Views:  141 Downloads:  0
Issue Description
The network as follows:
USG2000 (interface E0/0/1)----(interface E0/2)USG3040
The equipment inerworking interfaces is interface E0/0/1 ,interface E0/2
After security policy configuring ,the interworking address can ping each other.
Establishing OSPF process 100 area 0 to pronounce the interworking network segment and establishing loopback on the USG2000 .The loopback1 ip address is which has been used to test
USG3040 cannot ping passing after finishing the configuration.

Alarm Information
Handling Process
Modify the network style of USG3040 interface to broadcast and the OSPF peer is normal. 
Root Cause
Check the routing table ,there is no list about the destination address 1.1.1.
Check the state of USG3040 OSPF peer ,find it don’t establish OSPF peer relationship
Check the state of USG3040 interface E0/2,find its OSPF network style is NBMA
Check the state of USG3040 interface E0/0/1,find its OSPF network style is broadcast
The trouble reason should be that the style of interface is unconformity .
1、 The equipment’s default interface style of  OSPF network is broadcast ,it can be modified by man-made .If the interface styles of OSPF network are not the same with each other,it cannot establish OSPF peer.
2、 If the styles are both broadcast ,the Hello message cannot find the OSPF peer ,it must configure the IP of peer by man-made
the order is input peer x.x.x.x(IP address of peer) in the OSPF view.