CRS-0215: Could not start resource 'ora.rac2.LISTENER_RAC2.lsnr'.

problem:
[root@rac1 bin]# ./srvctl start listener -n rac2
CRS-0215: Could not start resource 'ora.rac2.LISTENER_RAC2.lsnr'.

solution:
check /etc/hosts on both nodes
check /etc/sysconfig/network on both nodes

correct it if necessary if u found any mismatch between both nodes
i didnt mention the default gateway ip address for rac2 machine
i corrected the gateway address for node 2 machine
[oracle@rac2 ~]$ su -
Password:
[root@rac2 ~]# vi /etc/sysconfig/network
[root@rac2 ~]# service network restart
Shutting down interface eth0: [ OK ]
Shutting down interface eth1: [ OK ]
Shutting down loopback interface: [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: [ OK ]
Bringing up interface eth1: [ OK ]
[root@rac2 ~]# cd /u01/crs/oracle/product/11.1.0/crs/bin/
[root@rac2 bin]# ./crsctl start crs
Attempting to start Oracle Clusterware stack
The CRS stack will be started shortly
[root@rac2 bin]# ./crs_stat -t
Name Type Target State Host
------------------------------------------------------------
ora....SM1.asm application ONLINE ONLINE rac1
ora....C1.lsnr application ONLINE ONLINE rac1
ora....C1.lsnr application ONLINE ONLINE rac1
ora.rac1.gsd application ONLINE ONLINE rac1
ora.rac1.ons application ONLINE ONLINE rac1
ora.rac1.vip application ONLINE ONLINE rac1
ora....SM2.asm application ONLINE ONLINE rac2
ora....C2.lsnr application ONLINE OFFLINE
ora....C2.lsnr application ONLINE OFFLINE
ora.rac2.gsd application ONLINE ONLINE rac2
ora.rac2.ons application ONLINE ONLINE rac2
ora.rac2.vip application ONLINE ONLINE rac1
[root@rac2 bin]# ./srvctl start nodeapps -n rac2
[root@rac2 bin]# ./crs_stat -t
Name Type Target State Host
------------------------------------------------------------
ora....SM1.asm application ONLINE ONLINE rac1
ora....C1.lsnr application ONLINE ONLINE rac1
ora....C1.lsnr application ONLINE ONLINE rac1
ora.rac1.gsd application ONLINE ONLINE rac1
ora.rac1.ons application ONLINE ONLINE rac1
ora.rac1.vip application ONLINE ONLINE rac1
ora....SM2.asm application ONLINE ONLINE rac2
ora....C2.lsnr application ONLINE ONLINE rac2
ora....C2.lsnr application ONLINE ONLINE rac2
ora.rac2.gsd application ONLINE ONLINE rac2
ora.rac2.ons application ONLINE ONLINE rac2
ora.rac2.vip application ONLINE ONLINE rac2
[root@rac2 bin]#

problem solved,

if got error,
pls follow the steps mentioned in metalink

How to Configure Virtual IPs for 10g RAC [ID 264847.1]
NOTE:264847.1

regards,
rajeshkumar g