CSF break most IPv6 connections

Sam83 · Post by **Sam83** » 11 Sep 2020, 23:50

Hello,

after my site was attacked I installed CSF v14.05 and it work great.Except that users with ipv6 started getting (connection time out) and very slow browsing to my site. if I disable CSF the problem goes away.

here is my setting in CSF for ipv6:

Code: Select all

IPV6 = OFF  

IPV6_ICMP_STRICT = OFF  

IPV6_SPI = OFF  

Allow incoming IPv6 TCP ports:  
    20,21,22,25,53,80,110,143,443,465,587,993,995,2077,2078,2082,2083,2086,2087,2095,2096,8443,2052 

Allow outgoing IPv6 TCP ports  
    20,21,22,25,37,43,53,80,110,113,443,587,873,993,995,2086,2087,2089,2703,2052  

Allow incoming IPv6 UDP ports  
    20,21,53,80,443,2052  

Allow outgoing IPv6 UDP ports  
    20,21,53,113,123,873,6277,24441,2052

thank you,