net/http: get for literal ipv6 address url doesn't follow redirection on ipv6-only transport environment #8847
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I have no clue what this bug is trying to say. In particular, what is "or some ipv6 transition mech enabled environment"? Please write a complete description with examples. Owner changed to @mikioh. Status changed to WaitingForReply. |
when we run attached on ipv6 enabled, ipv6-only transport environment, we will have network is unreachable error because of issue #8453. fetch from www.google.com, 2404:6800:4004:807::1013 failed: Get http://www.google.com/: dial tcp 74.125.235.83:80: network is unreachable because, when the server returns 301 or 302 and the response contains non-literal ip address location, current net.Dial variants prefer ipv4 transport unconditionally and never attempts other a/aaaa records as described in issue #8453. > what is "or some ipv6 transition mech enabled environment"? never mind, i misconfigured dns64+a/aaaa filter. Attachments:
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Status changed to New. Attachments:
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fwiw, > what is "or some ipv6 transition mech enabled environment"? i mean, a environment which is deployed either ipv4-ipv6 translation techniques such as nat64/xlat464/ds-lite/map-t or ipv4-ipv6 tunnelling techniques such as 6rd/4rd/map-e. in any case control plane bridging stuff btw web and ip, dns and/or dns64, is pretty important. |
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Not sure what the status is here, but Brad, Mikio replied to your questions. |
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#8453 will fix this together, but please keep this open for now. Perhaps we need a test case that runs http.Get/http.Client.Get for www.google.com over only IPv6 transport. |
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CL https://golang.org/cl/8768 mentions this issue. |
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theoretically the root cause must be golang.org/issue/8453, but file a separate issue for safety. for now workaround would be having a custom transport like the following: tr := &http.Transport{ Dial: (&net.Dialer{DualStack: true}).Dial, } client := http.Client{Transport: tr} resp, err := client.Get(fmt.Sprintf("http://[2404:6800:4004:802::1011]:80/")The text was updated successfully, but these errors were encountered: