News for hackers. Stuff that matters.

A comment on Why you need IPv6. Parent comment

Re:Why you need IPv6 by yardstick on Thursday May 24, 2018 @12:21AM (#17141073)
In my case, I want to fail over from VDSL to 4G within a couple seconds of VDSL going down. Will short leases cover that?

I also like to load balance traffic on another site with two VDSL links and a 4G backup. I can’t do that without NAT.

[ Parent | on HN ]
Re:Why you need IPv6 by dmayle on Thursday May 24, 2018 @01:57PM (#17146534)
DHCP traffic is approximately 512 bytes in each direction for each half lease period. Stick 1000 clients on a single node, with 2 second leases, and you'll use 0.5% of your bandwidth, and be able to update your default gateway every second
[ Parent | on HN ]
Re:Why you need IPv6 by AstralStorm on Thursday May 24, 2018 @03:38AM (#17141866)
Leases? What leases, this is not DHCP. If you mean Route Advertisement with short life, then yes.
[ Parent | on HN ]
Re:Why you need IPv6 by yardstick on Thursday May 24, 2018 @03:52AM (#17141940)
The leases referenced by the post I was replying to:

“Why not use Stateless DHCP, and configure a machine with short leases”

How do you deal with one missed RA causing an inadvertent failover to using a different WAN, while maintaining 1-2s failover after the first WAN link goes down?

Also this does not fix the issue with inability to load balance without NAT. Eg I have a desktop (or tablet etc) that I want to send VoIP out one WAN and everything else out another.

[ Parent | on HN ]