Module Name: src
Committed By: knakahara
Date: Wed Oct 30 03:45:59 UTC 2019
Modified Files:
src/sys/net: if_gif.c if_gif.h
src/sys/netinet6: in6.h in6_gif.c in6_gif.h
Log Message:
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.
To generate a diff of this commit:
cvs rdiff -u -r1.149 -r1.150 src/sys/net/if_gif.c
cvs rdiff -u -r1.33 -r1.34 src/sys/net/if_gif.h
cvs rdiff -u -r1.96 -r1.97 src/sys/netinet6/in6.h
cvs rdiff -u -r1.94 -r1.95 src/sys/netinet6/in6_gif.c
cvs rdiff -u -r1.17 -r1.18 src/sys/netinet6/in6_gif.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
