CVS log for src/sys/netinet6/in6_gif.c

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Default branch: MAIN
Current tag: ad-namecache-base3

Revision 1.95 / (download) - annotate - [select for diffs], Wed Oct 30 03:45:59 2019 UTC (4 years, 5 months ago) by knakahara
Branch: MAIN
CVS Tags: thorpej-i2c-spi-conf2-base, thorpej-i2c-spi-conf2, thorpej-i2c-spi-conf-base, thorpej-i2c-spi-conf, thorpej-futex2-base, thorpej-futex2, thorpej-futex-base, thorpej-futex, thorpej-cfargs2-base, thorpej-cfargs2, thorpej-cfargs-base, thorpej-cfargs, phil-wifi-20200421, phil-wifi-20200411, phil-wifi-20200406, phil-wifi-20191119, is-mlppp-base, is-mlppp, cjep_sun2x-base1, cjep_sun2x-base, cjep_sun2x, cjep_staticlib_x-base1, cjep_staticlib_x-base, cjep_staticlib_x, bouyer-xenpvh-base2, bouyer-xenpvh-base1, bouyer-xenpvh-base, bouyer-xenpvh, bouyer-sunxi-drm-base, bouyer-sunxi-drm, ad-namecache-base3, ad-namecache-base2, ad-namecache-base1, ad-namecache-base, ad-namecache
Changes since 1.94: +48 -5 lines
Diff to previous 1.94 (colored)

Add sysctl nodes to control fragmentation with IPv[46] over IPv6 gif(4).

New sysctl node "net.inet6.ip6.gifpmtu" means
    - 0 (default)
      Fragment by IPV6_MMTU. All packets reach the destination certainly,
      however the long packet performance is poor.
      This is same behavior as before.
    - 1
      Fragment by outer interface's MTU. The long packet performance would
      be good, however the packets may be dropped in some network paths
      whose path MTU less than the interface's MTU.
    - others
      undefined yet

New sysctl node "net.interfaces.gif*.pmtu" means
    - -1 (default)
      Use system default value (net.inet6.ip6.gifpmtu).
    - 0
      Fragment by IPV6_MMTU for this gif(4) tunnel.
    - 1
      Fragment by outer interface's MTU for this gif(4) tunnel.
    - others
      undefined yet

See RFC4459 for more information and other solutions.

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