Re: [quicwg/base-drafts] Allow servers to send a preferred address of each address family (#2296)

[Kazuho Oku <[e-mail]>]

kazuho commented on this pull request.



>  
 ~~~
    struct {
-     enum { IPv4(4), IPv6(6), (15) } ipVersion;
-     opaque ipAddress<4..2^8-1>;
+     opaque ipv4Address<0..2^8-1>;

IIUC the text says that the value should be a zero-length byte array if the address type is not used, rather than using an invalid address.

Therefore I think the correct notation is:
```
opaque ipv4Address<0..4>;
opaque ipv6Address<0..16>;
```

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