Linux tcp settings for ipv6 [closed]

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I want to change tcp keepalive settigs specifically tcp_keepalive_time, tcp_keepalive_intvl, tcp_keepalive_probes and tcp_retries2 settings for linux. all these settings are available for ipv4 in linux but i dont see any ipv6 settings. Do these settings automatically apply to ipv6? If these settings do apply to ipv6 is there an official doc which mentions that?

Thanks!

Answer 1

Yes, the tcp settings for ipv4 also apply to ipv6:

https://www.kernel.org/doc/Documentation/networking/ip-sysctl.txt:

...
/proc/sys/net/ipv6/* Variables:

IPv6 has no global variables such as tcp_*.  tcp_* settings under ipv4/ also
apply to IPv6  
...