ModifyTransitGatewayOptions

Gets and sets the property AddTransitGatewayCidrBlocks.

Adds IPv4 or IPv6 CIDR blocks for the transit gateway. Must be a size /24 CIDR block or larger for IPv4, or a size /64 CIDR block or larger for IPv6.

Gets and sets the property AmazonSideAsn.

A private Autonomous System Number (ASN) for the Amazon side of a BGP session. The range is 64512 to 65534 for 16-bit ASNs and 4200000000 to 4294967294 for 32-bit ASNs.

The modify ASN operation is not allowed on a transit gateway with active BGP sessions. You must first delete all transit gateway attachments that have BGP configured prior to modifying the ASN on the transit gateway.

Gets and sets the property AssociationDefaultRouteTableId.

The ID of the default association route table.

Gets and sets the property AutoAcceptSharedAttachments.

Enable or disable automatic acceptance of attachment requests.

Gets and sets the property DefaultRouteTableAssociation.

Enable or disable automatic association with the default association route table.

Gets and sets the property DefaultRouteTablePropagation.

Enable or disable automatic propagation of routes to the default propagation route table.

Gets and sets the property DnsSupport.

Enable or disable DNS support.

Gets and sets the property PropagationDefaultRouteTableId.

The ID of the default propagation route table.

Gets and sets the property RemoveTransitGatewayCidrBlocks.

Removes CIDR blocks for the transit gateway.

Gets and sets the property SecurityGroupReferencingSupport.

This parameter is in preview and may not be available for your account.

Enables you to reference a security group across VPCs attached to a transit gateway. Use this option to simplify security group management and control of instance-to-instance traffic across VPCs that are connected by transit gateway. You can also use this option to migrate from VPC peering (which was the only option that supported security group referencing) to transit gateways (which now also support security group referencing). This option is disabled by default and there are no additional costs to use this feature.

Gets and sets the property VpnEcmpSupport.

Enable or disable Equal Cost Multipath Protocol support.