I created a VM CentOS 7(based on a Dedicated Server), installed the ipmitool in it, I want to use it to manage the Dedicated Servers under the LAN(172.18.16.0/20), now in the VM I can ping 172.18.16.230(one Dedicated Server's IPMI address).
[root@localhost ~]# ping 172.18.16.230
PING 172.18.16.230 (172.18.16.230) 56(84) bytes of data.
From 172.18.31.252: icmp_seq=1 Redirect Network(New nexthop: 172.18.16.230)
From 172.18.31.252 icmp_seq=1 Redirect Network64 bytes from 172.18.16.230: icmp_seq=1 ttl=64 time=2.15 ms
64 bytes from 172.18.16.230: icmp_seq=1 ttl=64 time=2.16 ms (DUP!)
64 bytes from 172.18.16.230: icmp_seq=1 ttl=63 time=2.16 ms (DUP!)
64 bytes from 172.18.16.230: icmp_seq=1 ttl=63 time=2.17 ms (DUP!)
64 bytes from 172.18.16.230: icmp_seq=1 ttl=62 time=2.17 ms (DUP!)
64 bytes from 172.18.16.230: icmp_seq=1 ttl=62 time=2.17 ms (DUP!)
64 bytes from 172.18.16.230: icmp_seq=2 ttl=64 time=1.21 ms
64 bytes from 172.18.16.230: icmp_seq=2 ttl=64 time=1.23 ms (DUP!)
64 bytes from 172.18.16.230: icmp_seq=2 ttl=63 time=1.23 ms (DUP!)
64 bytes from 172.18.16.230: icmp_seq=2 ttl=63 time=1.24 ms (DUP!)
64 bytes from 172.18.16.230: icmp_seq=2 ttl=62 time=1.24 ms (DUP!)
64 bytes from 172.18.16.230: icmp_seq=2 ttl=62 time=1.24 ms (DUP!)
From 172.18.31.252: icmp_seq=3 Redirect Network(New nexthop: 172.18.16.230)
From 172.18.31.252 icmp_seq=3 Redirect Network64 bytes from 172.18.16.230: icmp_seq=3 ttl=64 time=1.67 ms
64 bytes from 172.18.16.230: icmp_seq=3 ttl=64 time=1.68 ms (DUP!)
64 bytes from 172.18.16.230: icmp_seq=3 ttl=63 time=2.45 ms (DUP!)
64 bytes from 172.18.16.230: icmp_seq=3 ttl=63 time=2.48 ms (DUP!)
64 bytes from 172.18.16.230: icmp_seq=3 ttl=62 time=2.92 ms (DUP!)
64 bytes from 172.18.16.230: icmp_seq=3 ttl=62 time=2.93 ms (DUP!)
before, I can get power status of it by using command:
ipmitool -H 172.18.16.230 -I lanplus -U ADMIN -P ADMIN power status
after several times' usage of the command(works fine), but I can not establish session with it at now:
[root@localhost ~]# ipmitool -H 172.18.16.230 -I lanplus -U ADMIN -P ADMIN power status
Error: Received an Unexpected Open Session Response
Error: Received an Unexpected Open Session Response
Error: Received an Unexpected Open Session Response
Error: Received an Unexpected Open Session Response
Error: Received an Unexpected Open Session Response
Error: Unable to establish IPMI v2 / RMCP+ session
I don't know why I can not get status now, but in the first times it works fine, and I did nothing else about the configuration.
EDIT-01
the VM is based on a dedicated server, VM bridging to the dedicated server physical interfaces.
The bellow is my arping:
[ldl@localhost network-scripts]$ arping -b -I eno16777736 172.18.16.230
ARPING 172.18.16.230 from 172.18.31.249 eno16777736
Unicast reply from 172.18.16.230 [AC:1F:6B:A6:B6:EF] 1.126ms
Unicast reply from 172.18.16.230 [AC:1F:6B:A6:B6:EF] 2.172ms
Unicast reply from 172.18.16.230 [AC:1F:6B:A6:B6:EF] 1.322ms
Unicast reply from 172.18.16.230 [AC:1F:6B:A6:B6:EF] 1.172ms
Unicast reply from 172.18.16.230 [AC:1F:6B:A6:B6:EF] 1.076ms
Unicast reply from 172.18.16.230 [AC:1F:6B:A6:B6:EF] 1.275ms
Unicast reply from 172.18.16.230 [AC:1F:6B:A6:B6:EF] 1.314ms
Unicast reply from 172.18.16.230 [AC:1F:6B:A6:B6:EF] 1.314ms
Unicast reply from 172.18.16.230 [AC:1F:6B:A6:B6:EF] 1.558ms
Unicast reply from 172.18.16.230 [AC:1F:6B:A6:B6:EF] 1.301ms
Unicast reply from 172.18.16.230 [AC:1F:6B:A6:B6:EF] 1.266ms
Unicast reply from 172.18.16.230 [AC:1F:6B:A6:B6:EF] 1.269ms
Unicast reply from 172.18.16.230 [AC:1F:6B:A6:B6:EF] 1.263ms
^CSent 13 probes (13 broadcast(s))
Received 13 response(s)
the VM's ipmi manage ip is 172.18.31.249/20.
