# Opennebula 5.8 security Group issue **URL:** \ **Category:** Installation & Configuration\ **Created:** [April 20, 2021, 4:39am UTC](https://forum.opennebula.io/t/opennebula-5-8-security-group-issue/9415 "2021-04-20T04:39:25Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![mosharaflink](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.opennebula.io/mosharaflink/32/5953_2.png) [@mosharaflink](https://forum.opennebula.io/u/mosharaflink)\ **Post date:** [April 20, 2021, 4:39am UTC](https://forum.opennebula.io/t/opennebula-5-8-security-group-issue/9415/1 "2021-04-20T04:39:25Z")
Hi I am getting a strange network communication issue while connecting to the VM under opennebula cluster. I cannot get ping/any traffic from one of my private IP blocks to the public IP of OpenNebula VM. I am confident about the network routing issue and get all access to the same IP to another non-opennebula based cluster under the same network infrastructure. The scenario is as below. I find there is no network or routing-related issues as the same IP works on different non-opennebula based cluster. I thought it may be an issue with the security group which was assigned to that network. To resolve this I have created a new “Security Group” allowing all its and protocol but no luck. **OpenNebula Cluster:** private-sw\>traceroute x.x.x.x Type escape sequence to abort. Tracing the route to x.x.x.x 1 y.y.y.y 0 msec 0 msec 0 msec 2 192.168.3.17 0 msec 8 msec 0 msec 3 192.168.3.46 9 msec 0 msec 8 msec 4 \* \* \* 5 \* \* \* 6 \* \* \* **Non OpenNebula Cluster:** private-sw\>traceroute x.x.x.x Type escape sequence to abort. Tracing the route to x.x.x.x 1 y.y.y.y 0 msec 0 msec 0 msec 2 192.168.3.17 0 msec 8 msec 0 msec 3 192.168.3.46 9 msec \* 0 msec 4 x.x.x.x 5 msec \* 0 msec