Testing IPv6 Using Video Conference On Top Of IPv4

[wanmohdhafiz]

Hi..

Refer diagram for details.

My planning is to use VC2 (video conference 2) to communicate with VC1 using IPv6. Current network is using IPv4. Questions :
- What is the best method? Dual stack / tunnelling / translation?
- Do i have to configure start from access , distribution, core, firewall & router?

Please advice.

Thanks

[sean_evershed · Accepted solution]

Hi,

The simplest method may be to implement dual stack across your network.

With this method you don't need to tune any firewall rules on your ASA to allow inbound and outbound IPv6 tunnels.

NAT64 may present some challenges if you need a particular version of IOS in order to support this feature.

See below a paper on how to implement dual stack across your network:

http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6553/at_a_glance_c45-625859.pdf

Don't forget to rate all posts that are helpful.

[Marcin Latosiewicz · Accepted solution]

To add to Sean's post.

In order of my personal preference.

- Dual stack

- tunneling

- translation

If for whatever reason you're not able to use dual stack tunneling (GRE, IPv6 in IP...) would be the best way - but does not test your network IPv6 end to end.

However I would highly douscourage use of host based dynamic tunneling (ISATAP, 6to4, teredo).

Translation mechanisms are evil! NAT-PT, NAT64 alike, same way NAT is/was evil.

Start from core of your network descending into access, it will help you avoid anything unwelcome originating from access devices sending IPv6 traffic when it cannot be routed.

M.