[CLOUDSTACK-6747] Allowing non rfc1918 networks on the other end of VPC Site 2 Site VPN

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.2.0, 4.3.0
• Fix Version/s: Future
• Component/s: Management Server, Network Controller, Virtual Router
• Security Level: Public (Anyone can view this level - this is the default.)
• Assignee: Daan
• Reporter: Erik Weber
• Created: 22/May/14 08:48
• Updated: 26/Jun/14 09:34
• Resolved: 26/Jun/14 09:34

Description

When you configure a Site 2 Site VPN Customer gateway the other end from CloudStack point of view is not allowed to be outside rfc1918 address scope.

There are use cases where the client / remote networks use official/public addresses and you want to encrypt / secure the traffic with VPN.

Log excerpt:

2014-05-21 12:30:42,326 WARN [c.c.u.n.NetUtils] (API-Job-Executor-7:job-3072 ctx-bf3922b1) cidr 50.0.1.0/24 is not RFC 1918 compliant
2014-05-21 12:30:42,335 ERROR [c.c.a.ApiAsyncJobDispatcher] (API-Job-Executor-7:job-3072) Unexpected exception while executing org.apache.cloudstack.api.command.user.vpn.CreateVpnCustomerGatewayCmd
com.cloud.exception.InvalidParameterValueException: The customer gateway guest cidr list 50.0.1.0/24 is invalid guest cidr!
at com.cloud.network.vpn.Site2SiteVpnManagerImpl.createCustomerGateway(Site2SiteVpnManagerImpl.java:176)

Expected behavior is that guest cidr should be allowed as long as it's a valid cidr, including if it's outside of RFC1918