Garrett Cooper <yaneg...@gmail.com> wrote in <CAGH67wQWu2PZGcORsiSz3_r+mjsDv=fx9-ijbejqv8jbt7a...@mail.gmail.com>:
ya> Hi, ya> I've been TAHI testing FreeBSD 7.x sources for the past couple ya> months and over the course of my testing via the TAHI IPv6 conformance ya> test, I changed the knob value from net.inet6.icmp6.nd6_useloopback=1 ya> -> net.inet6.icmp6.nd6_useloopback=0 and ran into a slew of errors ya> with the addr.p2 phase-1 TAHI tests. ya> I was wondering if someone could describe what the beforementioned ya> sysctl is supposed to do from a functional perspective, how it might ya> tie into other IPv6 RFCs (if applicable), and if disabled how it would ya> affect a system with IPv6 enabled. It is for whether a loopback address (::1) is used as the destination for traffic toward one of the locally-configured IPv6 addresses. In the original implementation it is in rtrequest(), but the current FreeBSD's one it just means if a loopback route will be installed or not upon the lo0 interface initialization, not in RTM_RESOLVE. So, if setting nd6_useloopback to 0, no loopback route will be installed and some THAI test will fail, I think. -- Hiroki
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