问题
I am having problems to proxy requestions inside a IPv6 address.
On .htaccess/apache2.conf, I have it:
RewriteRule (.*) http://18.4.15.8:80/path/$1 [P,L]
It works fine, because it is a IPv4 address. But, it does not works:
RewriteRule (.*) http://[27:ec:20:22:15::d3]:80/path/$1 [P,L]
Why?
Error Log:
Proxy Error
Your browser sent a request that this server could not understand. The proxy server could not handle the request GET /index.html.
Reason: URI cannot be parsed: http://%5b27:ec:20:22:15::d3%5d:80/path/index.html
回答1:
It's because of [ & ]. Thay are usually not allowed in a URL and so the server is escaping it to %b5and %5d. To prevent this use the NE Flag in your Rewrite Rule:
RewriteRule (.*) http://[27:ec:20:22:15::d3]:80/path/$1 [NE,P,L]
https://httpd.apache.org/docs/2.4/rewrite/flags.html#flag_ne
来源：https://stackoverflow.com/questions/46609891/rewriterule-with-an-ipv6-ip-address-does-not-work