Current Events > Networking IPv6 HW question

(+) Yeah! (+)

I'm given 2001: ABCD: DCBA:6660::/60 by my ISP. I want to split it up into 4 subnets. I have 1 router connected to 4 switches and so on.
Can I do
2001: ABCD: DCBA:6660::/64
2001: ABCD: DCBA:6661::/64
2001: ABCD: DCBA:6662::/64
2001: ABCD: DCBA:6663::/64

I went to my router, enabled unicast-routing, then set int f0/0 to ipv6 addr 2001:ABCD:DCBA:6660::1/64
int f0/1 to next subnet, and so on...

My PC's all get correct IPs, but they can ping each other. That IS what I want, but feel like they shouldn't be able to ping each other.
IPv6 has my head spinning and I don't really know why. This should be easy :( Do I need to set link-local addresses? (I never really got that.)

That is indeed proper subnetting with IPv6. And with a router, they will be able to ping each other unless you add some IPv6 access lists to block the traffic.

Also, every IPv6 interface will automatically get a link local address as well. They'll typically get one using EUI64 rules, but some devices just assign a random link local address and then rely on duplicate address detection to avoid conflicts.

If a firewall was your layer 3 device, it would block traffic between interfaces and subnets by default unless you explicitly allow it.

With a router, it will deliver traffic between interfaces and subnets by default as long as both the source and destination subnets are in the routing table.

Thanks a lot! I think the problem I had in another lab was that it was traffic between two routers that I had to route. Never tried to just ping between subnets on the same router in IPv6 and it freaked me out; it seemed "too easy.:

In between my last post and this I set up VLAN's and they seem to work.

https://gamefaqs.gamespot.com/a/user_image/5/2/7/AAA_yAAAD8kf.jpg
Here's my beautiful physical topology, if anyone's curious.

who's richard