Date: Mon, 8 May 2023 10:52:44 -0700 From: Gary Aitken <freebsd@dreamchaser.org> To: FreeBSD Mailing List <freebsd-questions@freebsd.org> Subject: turning off ipv6 on lo0 Message-ID: <996b0ce7-0bfe-03e3-0666-6cec58b4ceba@dreamchaser.org>
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Can't seem to figure out how to completely disable ipv6 in 12.4-RELEASE.
Tried everything I've found in searches, I think.
rc.conf:
ip6addrctl_enable="NO"
ip6addrctl_prefer_ipv4="YES"
ip6addrctl_prefer_ipv6="NO"
ipv6_activate_all_interfaces="NO"
# neither of the 2 lines below have any effect;
# nor does the absence of them
# lo0 always has ipv6 configured
#ipv6_network_interfaces="none"
#ipv6_network_interfaces=""
An ifconfig shows no ipv6 on any interfaces except lo0:
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
options=680003<RXCSUM,TXCSUM,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3
inet 127.0.0.1 netmask 0xff000000
groups: lo
nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
So how do I get rid of it on lo0?
Should I care?
Gary
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