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dns.mod doesn't handle prefer-ipv6 change properly #773

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michaelortmann opened this Issue Nov 20, 2018 · 0 comments

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michaelortmann commented Nov 20, 2018

.set prefer-ipv6
Currently: 0

.tcl dnslookup google.com foo
"foo 216.58.207.78 google.com 1"

.set prefer-ipv6 1
Ok, set.

.tcl dnslookup google.com foo
"foo 216.58.207.78 google.com 1"

[22:32:37] DNS Resolver: Cache record for "google.com" (216.58.207.78) has expired. (state: 0) Marked for expire at: 1542749557.

.tcl dnslookup google.com foo
"foo 2a00:1450:400e:80b::200e google.com 1"

If dns.mod finds a cached result, its not looking at (a changed) prefer-ipv6.

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