---------- Forwarded message --------- From: Fariborz Navidan <mdvlinqu...@gmail.com> Date: Sun, 14 Jan 2024, 02:59 Subject: GRE tunnel between user VM and a outside server not working after KVM host reboot To: <users@cloudstack.apache.org>
Hi Friends, We have a client who is running two VMs on our cloud. They are running GRE tunnel between their VMs and a server outside our network. After last reboot of KVM hosts, their GRE tunnel stopped working. The GRE tunnel is established and private IPs are assigned to both peers buy peers are not able to reach each other using their private IP addresses. We have already added all protocols and CIDRs (0.0.0.0/0) into the security groups belonging to the VMs. Should we do something on hosts to allow GRE tunneling? Please advise. Kind Regards.
