IS-IS Redistribution

Thanks Rene for your valuable input . In My LAB Only local connected (Loopback) prefix will not distributed But others prefix distributed fine . In R2 , when redistributed (24 to AREA12) to AREA12 , only prefix not come to AREA12 but all others prefix ( ; redistributed fine . See the output below :

R1#show ip route 
Gateway of last resort is not set is subnetted, 1 subnets
C is directly connected, Loopback0 is subnetted, 1 subnets
**i L2 [115/30] via, 00:00:48, FastEthernet0/0** is subnetted, 1 subnets
**i L2 [115/30] via, 00:00:48, FastEthernet0/0** is variably subnetted, 2 subnets, 2 masks
C is directly connected, FastEthernet0/0
L is directly connected, FastEthernet0/0 

Only not coming .

As per your observation Multi process ISIS , redistribution with Route-map between Process will works fine , right ??

One More query , A process must have One NET address and NET address should be Unique . Here In your configuration on R2 you used net 49.0012.0000.0000.0002.00 & net 49.0023.0000.0000.0002.00 for two process (24 & area23) but In both the sysID (0000.0000.0002) is same . When I tried to configure like this I am getting a error and can’t configure …
%CLNS: Duplicate system ID configured in ip vrf with router isis 24

Please help to know about the issue .Thanks