public void setTunnelInsideIpv6Cidr(String tunnelInsideIpv6Cidr) {
        this.tunnelInsideIpv6Cidr = tunnelInsideIpv6Cidr;
    }
<p>
The range of inside IPv6 addresses for the tunnel. Any specified CIDR blocks must be unique across all VPN
connections that use the same transit gateway.
</p>
<p>
Constraints: A size /126 CIDR block from the local <code>fd00::/8</code> range.
</p>

@param tunnelInsideIpv6Cidr
       The range of inside IPv6 addresses for the tunnel. Any specified CIDR blocks must be unique across all VPN
       connections that use the same transit gateway.</p>
       <p>
       Constraints: A size /126 CIDR block from the local <code>fd00::/8</code> range.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/VpnTunnelOptionsSpecification.java