Caleb James DeLisle on Nostr: So it passes through IPv4 routers with no problem, and interfaces with IPv6 capable ...
So it passes through IPv4 routers with no problem, and interfaces with IPv6 capable applications, also, with no problem. A host which doesn't understand it will treat it as an IPv4 with a weird option, so a NAT can safely rewrite IPv4 into IPv5, while also translating the port number. If the NAT receives back an IPv5 response, great, if it receives an IPv4 response, also fine. The only real issue is DNS, which would require a new record because IPv5 and IPv6 would not be compatible. But every server is going to need an IPv4 for a long time into the future, so they're going to stick with their A record anyway. The key value of IPv5 is that carrier grade NAT can be less stupid without asking the telecom to deploy IPv6, which lets be honest, IPv6 means dual stack for the foreseeable future.
Published at
2025-02-11 11:41:30Event JSON
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"id": "75316db94c0d4679929a9dd81464fe182d1e20be9ef219154bae8854113cfd7f",
"pubkey": "dde9dd6efbaf3c747c06bfd60f732666acd686e4c2eff471937f0c7c5fca5e0e",
"created_at": 1739274090,
"kind": 1,
"tags": [
[
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],
[
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"wss://relay.mostr.pub",
"reply"
],
[
"proxy",
"https://pkteerium.xyz/objects/e120a5c1-5c9b-4546-bb73-a6ac1c691ada",
"activitypub"
]
],
"content": "So it passes through IPv4 routers with no problem, and interfaces with IPv6 capable applications, also, with no problem. A host which doesn't understand it will treat it as an IPv4 with a weird option, so a NAT can safely rewrite IPv4 into IPv5, while also translating the port number. If the NAT receives back an IPv5 response, great, if it receives an IPv4 response, also fine. The only real issue is DNS, which would require a new record because IPv5 and IPv6 would not be compatible. But every server is going to need an IPv4 for a long time into the future, so they're going to stick with their A record anyway. The key value of IPv5 is that carrier grade NAT can be less stupid without asking the telecom to deploy IPv6, which lets be honest, IPv6 means dual stack for the foreseeable future.",
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}
