Github user karuturi commented on the pull request:
https://github.com/apache/cloudstack/pull/765#issuecomment-136962555
tested this on Xen 6.5 advanced zone with isolated and VPC. verified that
the default policies are set to drop.
I am not sure if its related to this. But, I found the below issue
in case of vm launched in vpc, outgoing public traffic worked (I was able
to ping google.com)
But, in case of default isolated
network(DefaultIsolatedNetworkOfferingWithSourceNatService) vm, outgoing public
traffic was blocked even after adding egress rule.
It only worked after running the following on isolated VR
```
iptables -I FW_OUTBOUND -j FIREWALL_EGRESS_RULES
```
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