Problem:
A Pod in Master can ping to a node in Node, whereas trace path fails. Also, TCP
connection between these pods give timeout errors.
We have below nodes
NODES
[root@ip-10-20-4-38 network-scripts]# oc get nodes
NAME STATUS AGE
master.hazelcast-ocp.com Ready 8d
node1.hazelcast-ocp.com Ready 8d
Master is also a node
SUBNET
[root@ip-10-20-4-38 network-scripts]# oc get hostsubnet
NAME HOST HOST IP SUBNET
master.hazelcast-ocp.com master.hazelcast-ocp.com 54.160.17.51
10.128.0.0/23
node1.hazelcast-ocp.com node1.hazelcast-ocp.com 52.205.214.205
10.129.0.0/23
PODS
[root@ip-10-20-4-38 network-scripts]# oc get pods
NAME READY STATUS RESTARTS AGE
docker-registry-1-f9lcn 1/1 Running 1 2d
hz-rc-9h10b 1/1 Running 1 15m
hz-rc-fc64l 0/1 Running 0 16m
router-1-pfv0f 1/1 Running 0 3h
[root@ip-10-20-4-38 network-scripts]# oc describe pod hz-rc-9h10b
Name: hz-rc-9h10b
Namespace: default
Security Policy: restricted
Node: node1.hazelcast-ocp.com/52.205.214.205
Start Time: Wed, 26 Apr 2017 07:10:28 -0400
Labels: name=hazelcast-node-hz
Status: Running
IP: 10.129.0.61
[root@ip-10-20-4-38 network-scripts]# oc describe pod hz-rc-fc64l
Name: hz-rc-fc64l
Namespace: default
Security Policy: restricted
Node: master.hazelcast-ocp.com/54.160.17.51
Start Time: Wed, 26 Apr 2017 07:09:35 -0400
Labels: name=hazelcast-node-hz
Status: Running
IP: 10.128.0.100
From Master Node:
[root@ip-10-20-4-38 network-scripts]# ip route get 10.129.0.61
10.129.0.61 dev tun0 src 10.128.0.1
cache
[root@ip-10-20-4-38 network-scripts]# ip a show dev tun0
10: tun0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 8951 qdisc noqueue state
UNKNOWN qlen 1000
link/ether e2:b5:07:a5:10:fd brd ff:ff:ff:ff:ff:ff
inet 10.128.0.1/23 scope global tun0
valid_lft forever preferred_lft forever
inet6 fe80::e0b5:7ff:fea5:10fd/64 scope link
valid_lft forever preferred_lft forever
[root@ip-10-20-4-38 network-scripts]# tracepath 10.129.0.61
1?: [LOCALHOST] pmtu 8951
1: no reply
2: no reply
3: no reply
Could you please advice?
Thanks in advance
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