IPv6 Support in Avi Vantage

With the emerging utility of IPv6 in traditional networks, web applications are adapting to support both IPv4 and IPv6 requests. The network infrastructure is expected to process client requests originating from IPv4 and/or IPv6 based devices. Server clustering along with server load balancing has emerged as a promising technique to build scalable web servers.

Starting with 18.1.1 release, Avi Vantage provides full IPv6, and dual-stack IPv4 and IPv6 connectivity to the load balancing network without relying on any tunnelling solutions. Figure 1 refers to generic use cases for IPv6 support.

Note: IPv4 SNAT does not apply for IPv6 servers in the pool.

Figure 1. Use case scenarios

Ecosystem Integration

IPv6 is supported on baremetal, VMware vCenter, Linux server cloud, CSP, and OpenStack clouds.

Cloud Documentation
1 Baremetal
VMware vCenter
Linux server cloud
IPv6 in Avi Vantage for VMware/Linux Server Cloud
2 OpenStack IPv6 in Avi Vantage for OpenStack
3 CSP IPv6 in Avi Vantage for CSP
4 NSX-T IPv6 in Avi Vantage for NSX-T

The support for Azure, AWS, OpenShift, GCP, and Kubernetes will be introduced soon.

Feature Documentation

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Feature Documentation
1 Auto Gateway Create a Virtual Service Auto Gateway is supported for IPv6 clients.
2 BGP IPv6 BGP Peering in Avi Vantage Currently, the following are supported:
  • Pure IPv6 and dual-stack BGP peering
  • Advertising IPv6 BGP virtual service over IPv6 and dual-stack peer
  • Advertising IPv6 BGP virtual service over IPv4 and dual-stack peers
  • Advertising dual-stack virtual service over dual-stack peers only.
Supported on baremetal and VMware no-access clouds.
3 DHCP Default Gateway (IP Routing on Avi SE) DHCP, DHCPv6, and static addressing (SLAAC) are supported on VMware and OpenStack clouds.
4 DNS Avi DNS Architecture and Features Sending statically configured A or AAAA records over both IPv4 and IPv6 transports are supported.
5 Health Monitor Health Monitor Profile ICMP, ICMPv6, TCP, TCPv6, UDP, UDPv6, HTTP(s) health monitors and external health monitors are supported.
6 Infra-IPAM-Internal-IPAM IPAM Provider (Avi Vantage) IPv6 IP allocation and VIP modification for dual-stack are supported on Avi internal IPAM.
VIP and pool server changes in IPv6 networks are supported by the network manager.
7 IPAM and DNS IPAM and DNS Support IPv6 unified IPAM logic changes to call cloud connector APIs and Avi Vantage DNS AAAA record are supported.
IPAM for the following VIP types are supported:
  • IPv4 only
  • IPv6 only
  • IPv4 + IPv6 (dual stack)
8 iWAF WAF policy supports both IPv4 and IPv6 addresses Configuring WAF
9 Layer 4 and Layer 7 VIP Application Profile The following network profiles are supported:
  • System-HTTP
  • System-HTTPS
  • System-L4-Application
  • System-DNS
  • System-L4-SSL
Configuring pure IPv6 virtual service and dual-stack virtual service are supported.
Configuring IPv6 servers and pools with a combination of IPv4 and IPv6 servers are supported.

TCP-Fast-Path is not supported in System-L4-Application profile.
10 Layer 7 Policies HTTP Request Policy HTTP policy engine handles both IPv4 and IPv6 addresses.
11 Network Security Policies Virtual Service Policies Layer 4 UDP, Layer 4 TCP, and Layer 7 virtual services are supported for network security policy.
12 Packet Capture Packet Capture Virtual service and Service Engine packet captures are supported.
13 Persistence Persistence Profile Client-IP based persistence for all application profiles is supported. Cookies and TLS based persistence is supported as well.
14 Port Channel and VLAN Port Channeling on Linux Server Hosts Port channel and VLAN are supported on baremetal.
15 Scale out Virtual Service Scaling Native Layer 2 scale out with MACinMAC and IP encapsulation is supported.
Virtual service heartbeats and flow-probes are also .
16 XFF and Connection Multiplexing X-Forwarded-For Header Insertion X-Forwarded-For and connection multiplexing are supported for System-HTTP.