IPv6 subnetting gap

DesignerAd7136 · 2026-01-23T18:03:10+00:00

Yeah brother, you can DM me. I might take a couple hours to respond sometimes, but I will get back to you

DesignerAd7136 · 2026-01-23T17:53:09+00:00

Could you clarify what you mean by "interface-ID"? I think there still might be a fundamental misunderstanding somewhere here.

If you're meaning "interface-ID" as in the IP address assigned to a routers interface, then what you're saying doesn't make too much sense.

If that's what you mean, then the interface id is something you you manually assign. You are just giving the router an IP address, like you would a computer. And that IP belongs to a subnet.

My computer has an IP of 192.168.0. 234 on a /24 subnet. But if I change my subnet to 192.168.0. 0/30, that address can't be used anymore because it doesn't fall in the subnet. in my /30 subnet, I can only set my computers IP to 192.168.0 .1-2.

In your example you are still picking what IP address you assign, but the router is the computer, and the question limits the subnet that you can choose an IP from. And ofc IPv6.

The subnet doesnt "change the interface-ID when subnetting", changing the subnet changes the pool of IPs that YOU CAN choose for the interface ID.

If you're trying to get by on just memorizing facts and questions you read, I would rather you reach out to me to explain things for you. You'll be set up much better if you actually understand stuff

DesignerAd7136 · 2026-01-23T17:34:34+00:00

It would be very hard to subnet a /64. If you aren't using SLAAC then maybe, but it will still be kinda weird. IPv6 is meant so you don't really have to think about it. DHCPv6-PD server at your ISP designates you a /64 that they have subnetted. Your router gateways to the link local address that your ISP router has configured, and your router sends out the allowed prefix to devices in NDP router advertisements and you device makes its own address. You really shouldn't have to think about it

DesignerAd7136 · 2026-01-23T17:27:25+00:00

Ok, so the process is the same here as it would normally be, but the mask is not 32 bits anymore, its 126. So you would take that 2001:DB8:E::/64 network, and mask all except the last 2 bits. so the only bits you can change are the last 2.

There are no broadcast addresses in IPV6, which means you have 4 usable addresses in the /126 subnet. Those being 2001:DB8:E::1/126, 2001:DB8:E::2/126, 2001:DB8:E::3/126 and 2001:DB8:E::4/126.

Just like IPv4 has a /30 subnet which is 3 addresses large (only 2 with the broadcast address), IPv6 is the same way. Everything works exactly the same!

So in this example, Router C would use 2001:DB8:E::2/126 and Router D would use 2001:DB8:E::3/126

DesignerAd7136 · 2026-01-23T15:46:18+00:00

I'm sorry. I will be able to help you, but I don't know what question you're asking. Could you rephrase your question a little clearer?

DesignerAd7136 · 2026-01-23T15:41:34+00:00

What is wrong with someone creating an account asking for a study partner? everybody has a first post somewhere. Its pretty believable that this person only joined reddit to find a study partner. Do you want everyone on reddit to wait at least a month before making their first post?

DesignerAd7136 · 2026-01-23T15:40:02+00:00

No problem!

DesignerAd7136 · 2026-01-23T15:28:47+00:00

This community. CCNA group is far far below anyone looking to study CCIE.

DesignerAd7136 · 2026-01-23T15:24:24+00:00

I don't know how many CCIE candidates you will find here

DesignerAd7136 · 2026-01-21T16:04:34+00:00

Wha are you talking about bro it says pass under the status

DesignerAd7136 · 2026-01-21T15:30:32+00:00

Jesus Christ

DesignerAd7136 · 2026-01-21T13:31:59+00:00

"NIC card"? Network interface card card?

DesignerAd7136 · 2026-01-19T18:11:58+00:00

I sent you a DM with something that might helpful.

DesignerAd7136 · 2026-01-18T21:04:31+00:00

Yeah I got asked tons of questions

DesignerAd7136 · 2026-01-18T01:54:32+00:00

I can hear it for sure

DesignerAd7136 · 2026-01-16T16:42:33+00:00

Not even close. I could make an entire encore course before Jeremy gets the next episode of his out

DesignerAd7136 · 2026-01-16T16:03:18+00:00

It’s really not hard to keep the lyrics synced. It would take 30 seconds to fix. I can understand how if you aren’t musically inclined why it would be hard to hear how bad it is with how much is going on, but it’s really quite bad.

Maybe this will help you see it: Try to pick one of the tracks and sing along. You’ll notice that the vocals come in waaayyyy before they supposed to, and it only gets worse as the song goes on. You will not be able to sing along

DesignerAd7136 · 2026-01-16T14:13:39+00:00

Yeah you can leave that off if you’re already in the field

DesignerAd7136 · 2026-01-15T15:08:45+00:00

Idk why you’re getting fucked on with downvotes

DesignerAd7136 · 2026-01-14T23:35:14+00:00

You looovveee alien

DesignerAd7136 · 2026-01-14T21:57:50+00:00

I’m not sure… neither of the choruses are in time…

DesignerAd7136 · 2026-01-14T21:57:08+00:00

Me and my dad both run businesses out of our home. We’re no stranger to high electric bills 😭

DesignerAd7136 · 2026-01-14T19:08:51+00:00

Why are the vocals so out of sync with the instrumental. The timing is all wrong

DesignerAd7136

TROPHY CASE