OSPF adjacency not forming ?

Router ID 3.3.3.3 (172.16.1.1) and router ID 4.4.4.4 (172.16.1.2) is not forming adjacency. I was thinking how to troubleshoot this.

Then I did a packet capture and saw that both routers are sending OSPF hello pkts

packet capture : https://drive.google.com/open?id=0B3ctVg8ubiwUNThOTGhjSTQ1b00

So why are they not forming adjacency ???  Let's look in to the hello pkts to see whether there is any obvious  difference between the hellos 

Then I corrected the configuration

R4#show running-config | section ospf

router ospf 1

 router-id 4.4.4.4

 area 172 stub

 redistribute eigrp 1 subnets

 network 172.16.1.0 0.0.0.255 area 172

R4#

R4#configure terminal 

Enter configuration commands, one per line.  End with CNTL/Z.

R4(config)#

R4(config)#router  ospf 1 

R4(config-router)#no area 172 stub 

R4(config-router)# 

R4(config-router)#area 172 nssa 

R4(config-router)#

R4(config-router)#end

R4#

*Apr  9 11:42:17.315: %OSPF-5-ADJCHG: Process 1, Nbr 3.3.3.3 on FastEthernet0/0 from LOADING to FULL, Loading Done

*Apr  9 11:42:18.311: %SYS-5-CONFIG_I: Configured from console by console

R4# 

R4#show ip ospf neighbor 

Neighbor ID     Pri   State           Dead Time   Address         Interface

3.3.3.3           1   FULL/BDR        00:00:38    172.16.1.1      FastEthernet0/0

R4#