Is this a bug when creating VPN failed because UDP ports conflicts

[Yitao Jiang]

Hi, stackers

    I just found that if the the firewall of sourced nat ip of Isolated
network has opened UDP port such as 1-65535 range , the create vpn command
will faile, because the system will

reopen the udp port of 500, 1701, 4500 which are conflicts with origin port
range.Response as below

[{"createremoteaccessvpnresponse":{"errortext":"The range specified,
500-500, conflicts with rule 84 which has
1-65535","cserrorcode":9999,"errorcode":537,"uuidList":[]}}]

So is this a bug ?Or we should ommit the conflict of UDP ports and continue
to creating VPN , Is that right

Any thoughts?

​BYW, i am working on cloudstack 4.2.1 build from source​

Thanks,

Yitao