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Installed Openstack, but Host created on Neutron is not having access to Internet.

Hi All,

Have created a new host on Neutron, the NIC address is 172.16.10.2 and assigned a floating IP 172.21.4.101. The floating IP subnet 172.21.4.0/24 is the external network. Whenever I try pinging the gateway 172.21.4.1 and internet 4.2.2.2 I get Request Timed Out. When I do a traceroute, First hop reached 172.16.10.1 which is the Virtual Router Address and then it goes to second hop which is 172.21.4.101 which is the floating IP and shows "!H" and then it finishes.

Routing between the subnet 172.21.4.0/24 and internet is working fine, as if the plug in any server in the same subnet with flat IP 172.21.4.50/24 with gateway 172.21.4.1 internet works fine.

Any thoughts if I need to configure anything else.

Many Thanks! Ahin Shaw