Re: [Int-area] [ih] Fwd: Existing use of IP protocol 114 (any 0-hop protocol)

2019-09-19 Thread John Gilmore
Protocol 114 was unassigned in RFC 1700 in Oct 1994, which was the last RFC tabulating protocol assignments. In January 2002, RFCs ceased being published for protocol number assignments, according to RFC 3232. Sometime before Feb 1999, protocol 114 was assigned here: https://web.archive.org/we

Re: [Int-area] [ih] Existing use of IP protocol field

2019-09-23 Thread John Gilmore
> >> Given the number of remaining entries, the task of garbage collection > seems of little value. > > Until the day when it seems urgent... > 109 available out of 256, or 42%. The catch is that when this breaks, it will break lots of big stuff. This 1-byte value is shared between IPv4 and IPv6(!

Re: [Int-area] Introducing IPv4 Unicast Extensions with new draft-schoen-intarea-lowest-address

2021-08-03 Thread John Gilmore
enefiting the vendors indirectly. So the cost-benefit tradeoff might be more societal (or network-wide) than individual or corporate. My understanding is that IETF's role is as a steward of network-wide value, which is why I thought this might interest IETF. John Gi

Re: [Int-area] Introducing IPv4 Unicast Extensions with new draft-schoen-intarea-lowest-address

2021-08-10 Thread John Gilmore
ed on its results in the real world. Finally, if intarea or IETF knows a way to "make the path to v6 easier", we welcome such work and recommend approving it. And yet, the community has looked in vain so far for an IPv6 silver bullet that would obviate the ongoing demand for IPv4 address

Re: [Int-area] IP Parcels & jumbo frames

2022-03-24 Thread John Gilmore
I have general sympathy for things that would improve the ability of end nodes to send larger packet sizes. As LAN and WAN speeds rise, latency goes down since each packet takes less time on the medium, but packet processing overhead goes up, since you must be able to receive 10x as many existing-

Re: [Int-area] Rebooting Addressing Discussion - quantum resistant IPv6

2022-10-21 Thread John Gilmore
Alexandre Petrescu wrote: > it might make sense to try to make IPv6 to be quantum resistant. Relax, have no fear. Both IPv4 and IPv6 are already fully buzzword compliant. They are climate change compatible, quantum resistant, neutral to positive in political correctness, forward-looking to 5G,

Re: [Int-area] whither multicast?

2022-11-29 Thread John Gilmore
-user -- a non-starter for mass market use. * And with few or no ISPs supporting multicast by default, no end-user applications that tried to use it ever caught on. So there was very little demand encouraging other ISPs to enable multicast. The paper does not seem to address any

Re: [Int-area] draft-chroboczek-intarea-v4-via-v6 - "IPv4 routes with an IPv6 next hop"

2024-01-23 Thread John Gilmore
Warren Kumari wrote: > This isn't yet another "let's rewrite part of the header and override > some bits", nor some new protocol / tunneling thing. It simply notes > that routers only need to determine the outgoing interface (and > usually MAC address) for a packet, and so it's perfectly acceptabl

Re: [Int-area] draft-chroboczek-intarea-v4-via-v6

2024-01-23 Thread John Gilmore
The draft seems entirely too focused on the guts of the per-packet routing decision. This misses the system-wide implications of the proposal. The draft treats IPv4 and IPv6 as symmetric and equal, such that you could route packets for either or both, over a network that support just one. So I s

[Int-area] Re: Presentation on analog MTU that fell off of the Int-Area agenda

2024-11-06 Thread John Gilmore
Matt Mathis wrote: > - There is not a conformance specification for jumbo, and > interoperability is not guaranteed > ... > - Alarming discovery when PLPMTUD [RFC 4121] was almost done > - we encountered a device (gbic) that ran error free at 1500B, but > showed 1% loss at 4kB If IEEE

[Int-area] Re: NDP for RFC4291 Sec. 2.5.5.1. IPv4-Compatible IPv6 Addresses for v4-w-v6-nh Forwarding/RFC8950 at RS

2025-04-10 Thread John Gilmore
nel. Patches needed to do that, if it doesn't already work, would probably be accepted by the maintainers. Especially if you provided a patch to the kernel networking test-cases, which demonstrates the failure, and also demonstrates that your patch elimi