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Author Topic: IPv6 on TP-Link 9980  (Read 7937 times)

j0hn

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Re: IPv6 on TP-Link 9980
« Reply #15 on: November 30, 2016, 02:33:12 PM »

I'm sure responding that it's BT, and their oversight doesn't just effect a small niche ISP but the UK's largest ISP, will increase the likelihood of /56 IPv6 support. The case may remain the same that the TD-W9980 may not receive any forthcoming firmware upgrade that resolves the above problem.
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licquorice

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Re: IPv6 on TP-Link 9980
« Reply #16 on: November 30, 2016, 02:48:41 PM »

I did indeed respond in such fashion. Hopefully they will realise the error of their ways.
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Weaver

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Re: IPv6 on TP-Link 9980
« Reply #17 on: December 01, 2016, 11:20:55 PM »

Perhaps all this dynamic IP range nonsense is intentional, not just due to insane BRAS / BNG devices. It could be that these big domestic ISPs want to make sure that business users won't go near these deals and will have to choose something more expensive to get the addressing they need. For example, to be able to write firewall rules with known IP ranges mentioned in them, for site-to-site stuff too. My few mutually trusted ‘sites’ allow access from each other's IP ranges through static firewall holes, for example.

I do think it's a shame for future application developers though as everything like this makes it a bit more difficult to deploy new sexy kinds of IPv6 applications. IPv6 needs to be a clean break from all the bad practices and design mistakes made with IPv4. No NAT, no assumptions about single IPs only being assigned to an interface, scopes defined, link-local addresses explained properly, PMTUD, reliable zeroconfig, all those many good things.
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NewtronStar

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Re: IPv6 on TP-Link 9980
« Reply #18 on: December 02, 2016, 10:19:03 PM »

The more I look at IPv6 IP address the more it confuses me as it uses hexadecimal now did all that hex to dec conversions years ago this is going to be a pain in the arse
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Weaver

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Re: IPv6 on TP-Link 9980
« Reply #19 on: December 03, 2016, 07:43:52 AM »

Newtronstar: of course you can just treat the hex 16-bit words as black box blobs, and as you know domain names work S usual. You can also, as you're probably aware, use dotted decimal too anyway for 32-bit addresses, if the high-order bits are all zeros e.g. ::10.0.0.1

But I'm just used to typing e.g. 2001:8b0:1ce:: . I don't seem to ever do any hex conversions, and there's the fun of being able to do things such as face:b00c:dead:d1e etc (note the actual addresses Facebook's servers use, btw)

All kitizens remember to now wrap [ ] around numeric IPv6 addresses in urls (obligatory) e.g. http://[ff02::02] because this is needed to disambiguate, as it looks like a domain name not an address otherwise, and the colon clashes with the URL syntax for ports. So we also use http://[ff02::02]:8080 to specify non-default ports, as usual.
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NewtronStar

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Re: IPv6 on TP-Link 9980
« Reply #20 on: December 03, 2016, 11:12:36 PM »

It so simply for you lets take the IP address on routers GUI with V4 address 192.168.1.254 now it looks like this on V6

IPv4 address:   192.168.1.254
IPv4 Mapped IPv6 Address:   ::ffff:c0a8:1fe
Expanded IPv6 Address:   0000:0000:0000:0000:0000:FFFF:C0A8:01FE
Ipv4 dotted-quoad notation:   ::ffff:192.168.1.254

:ffff:c0a8:1fe converted to decimal = 65535.49320.510
« Last Edit: December 03, 2016, 11:48:37 PM by NewtronStar »
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Weaver

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Re: IPv6 on TP-Link 9980
« Reply #21 on: December 03, 2016, 11:17:59 PM »

I've spent thirty five years doing decimal to hex, so I got the hang of it, but I'm nowhere near as good as I should be. I know someone who used to be able to type in Z80 code in decimal from memory, as he didn't have an assembler to start with. I was permanently in awe.
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NewtronStar

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Re: IPv6 on TP-Link 9980
« Reply #22 on: December 04, 2016, 12:34:52 AM »

I know someone who used to be able to type in Z80 code in decimal from memory, as he didn't have an assembler to start with. I was permanently in awe.

He must have memorized the mnemonics as a decimal number for each CPU instruction 0 - 254
« Last Edit: December 04, 2016, 12:39:51 AM by NewtronStar »
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