Github user jayapalu commented on a diff in the pull request:
https://github.com/apache/cloudstack/pull/1450#discussion_r57422486
--- Diff: server/src/com/cloud/network/router/CommandSetupHelper.java ---
@@ -778,10 +778,11 @@ public int compare(final PublicIpAddress o1, final
PublicIpAddress o2) {
final boolean add = ipAddr.getState() ==
IpAddress.State.Releasing ? false : true;
boolean sourceNat = ipAddr.isSourceNat();
- /* enable sourceNAT for the first ip of the public
interface */
- if (firstIP) {
- sourceNat = true;
+ /* enable sourceNAT for the first ip of the public
interface as long as it's source nat. */
+ if (firstIP && !sourceNat) {
--- End diff --
For additional public subnet case, sourceNat should be set to 'true' to add
a source nat rule on VR for the first ip in that subnet. This changes will
break that.
If there is no source nat rule for the additional public subnet the traffic
to this subnet from he VMs always go through the default source nat interface.
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