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Posted to notifications@apisix.apache.org by "Sarkie (via GitHub)" <gi...@apache.org> on 2025/09/17 10:02:40 UTC
[I] help request: validate ipv6 is disabled [apisix]
Sarkie opened a new issue, #12619:
URL: https://github.com/apache/apisix/issues/12619
### Description
Hi,
We have run into this issue.
https://www.bentasker.co.uk/posts/documentation/linux/694-nginx-logs-two-upstream-statuses.html
So we disabled ipv6 in apisix
enable_ipv6 : false
Yet, we still see both statuses in the access log and it is correlating to us getting upstream issues for clients.
Is there a way to check via the log or similar to know it is 100% really disabled, as it doesn't look like it?
Thanks!
### Environment
- APISIX version (run `apisix version`): 3.11
- Operating system (run `uname -a`): Oracle Linux (Will get this)
- OpenResty / Nginx version (run `openresty -V` or `nginx -V`): Will get this
- etcd version, if relevant (run `curl http://127.0.0.1:9090/v1/server_info`): n/a
- APISIX Dashboard version, if relevant: n/a
- Plugin runner version, for issues related to plugin runners: n/a
- LuaRocks version, for installation issues (run `luarocks --version`): n/a
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Re: [I] help request: validate ipv6 is disabled [apisix]
Posted by "Baoyuantop (via GitHub)" <gi...@apache.org>.
Baoyuantop commented on issue #12619:
URL: https://github.com/apache/apisix/issues/12619#issuecomment-3332136674
Hi @Sarkie, I'd like to confirm whether the IPv6 issue you encountered is between the client and APISIX, or between APISIX and the upstream service?
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Re: [I] help request: validate ipv6 is disabled [apisix]
Posted by "Baoyuantop (via GitHub)" <gi...@apache.org>.
Baoyuantop commented on issue #12619:
URL: https://github.com/apache/apisix/issues/12619#issuecomment-3454393137
Hi @Sarkie, any updates?
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Re: [I] help request: validate ipv6 is disabled [apisix]
Posted by "Sarkie (via GitHub)" <gi...@apache.org>.
Sarkie commented on issue #12619:
URL: https://github.com/apache/apisix/issues/12619#issuecomment-3639111911
Thanks. For anyone else, it was round the houses with regards to enabled at the infrastructure level.
So we had to disable it there fully for us to fix this.
Not sure if this needs to be raised with nginx more
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Re: [I] help request: validate ipv6 is disabled [apisix]
Posted by "Sarkie (via GitHub)" <gi...@apache.org>.
Sarkie commented on issue #12619:
URL: https://github.com/apache/apisix/issues/12619#issuecomment-3312442047
thanks @Crazy-xyr also, didn't see your reply.
let me validate on these
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Re: [I] help request: validate ipv6 is disabled [apisix]
Posted by "Baoyuantop (via GitHub)" <gi...@apache.org>.
Baoyuantop commented on issue #12619:
URL: https://github.com/apache/apisix/issues/12619#issuecomment-3311116929
In APISIX, when `enable_ipv6: false`, APISIX will set `resolver ... ipv6=off` in Nginx configuration. This is a DNS resolution-level IPv6 disablement. If the upstream node's domain name has already cached the IPv6 address during the DNS query, or in some edge cases, Nginx may still attempt an IPv6 connection. You can check whether your domain name resolution only returns IPV4 addresses.
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Re: [I] help request: validate ipv6 is disabled [apisix]
Posted by "Baoyuantop (via GitHub)" <gi...@apache.org>.
Baoyuantop closed issue #12619: help request: validate ipv6 is disabled
URL: https://github.com/apache/apisix/issues/12619
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Re: [I] help request: validate ipv6 is disabled [apisix]
Posted by "Crazy-xyr (via GitHub)" <gi...@apache.org>.
Crazy-xyr commented on issue #12619:
URL: https://github.com/apache/apisix/issues/12619#issuecomment-3305129779
@Sarkie Just as in the linked document`https://www.bentasker.co.uk/posts/documentation/linux/694-nginx-logs-two-upstream-statuses.html`, `enable_ipv6: false` only does not accept ipv6 from the client, but it can still connect to the upstream via ipv6.You can turn off ipv6 resolution using custom dns.Set the ipV6-only domain name in the hosts file, and set the apisix upstream address to it for testing
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Re: [I] help request: validate ipv6 is disabled [apisix]
Posted by "Sarkie (via GitHub)" <gi...@apache.org>.
Sarkie commented on issue #12619:
URL: https://github.com/apache/apisix/issues/12619#issuecomment-3455732601
The issue is related from client to apisix.
We are still working on the ticket internally, it takes it's time.
Thanks!
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Re: [I] help request: validate ipv6 is disabled [apisix]
Posted by "Baoyuantop (via GitHub)" <gi...@apache.org>.
Baoyuantop commented on issue #12619:
URL: https://github.com/apache/apisix/issues/12619#issuecomment-3630472458
If there is still a problem, please open it again.
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Re: [I] help request: validate ipv6 is disabled [apisix]
Posted by "Sarkie (via GitHub)" <gi...@apache.org>.
Sarkie commented on issue #12619:
URL: https://github.com/apache/apisix/issues/12619#issuecomment-3312422078
thanks @Baoyuantop let me check that.
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