Fencing failed when starting cman?

Question

Red Hat Enterprise Linux

Hello dear!
Given:
Configure the cluster to use GFS over iSCSI.
Solution progress:
1. edit /etc/hosts
10.24.99.206 im4.local
10.32.95.6 cronproc.local
2. Create a cluster. Use IPMI IP addresses for fencing:
ccs_tool create MyGFSCluster
ccs_tool addfence -C node1_ipmi fence_ipmilan ipaddr=10.24.99.207 login=root passwd=PASSWORD1
ccs_tool addfence -C node2_ipmi fence_ipmilan ipaddr=10.32.95.7 login=root passwd=PASSWORD2
ccs_tool addnode -C im4 .local -n 1 -v 1 -f node1_ipmi
ccs_tool addnode -C cronproc.local -n 2 -v 1 -f node2_ipmi
3. #service cman start
Starting cluster:
Loading modules… done
Mounting configfs… done
Starting ccsd… done
Starting cman… done
Starting daemons… done
Starting fencing… failed
The servers are in different VLANs, between which all connections are allowed.
Competent comrades, tell me, what could be the snag?
Thank you.