Github user jburwell commented on a diff in the pull request: https://github.com/apache/cloudstack/pull/1371#discussion_r62783039 --- Diff: server/src/com/cloud/network/vpc/VpcManagerImpl.java --- @@ -809,15 +945,22 @@ public Vpc createVpc(final long zoneId, final long vpcOffId, final long vpcOwner @DB protected Vpc createVpc(final Boolean displayVpc, final VpcVO vpc) { - final String cidr = vpc.getCidr(); - // Validate CIDR - if (!NetUtils.isValidCIDR(cidr)) { - throw new InvalidParameterValueException("Invalid CIDR specified " + cidr); - } - // cidr has to be RFC 1918 complient - if (!NetUtils.validateGuestCidr(cidr)) { - throw new InvalidParameterValueException("Guest Cidr " + cidr + " is not RFC1918 compliant"); + try { + final CIDR cidr = CIDRFactory.getCIDR(vpc.getCidr()); + + final CIDR[] superCidr = getZoneSuperCidrList(vpc.zoneId); + + if (_vpcOffServiceDao.areServicesSupportedByNetworkOffering(vpc.getVpcOfferingId(), Service.VPCDynamicRouting)) { + if (!NetUtils.validateGuestCidrForOSPF(cidr, superCidr)) { --- End diff -- Can this validation be moved to the ``CIDR`` interface to support IPv4/IPv6 dual stack operation?
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