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interfaces: immediately enable SLAAC during IPv6 initiation

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This improves PPPoE responsivenes for IPv6 acquire using
SLAAC on the "IPv4 interface".  Tests ok according to an
user and the impact on existing setups is low.

PR: https://forum.opnsense.org/index.php?topic=21506.0
This commit is contained in:
Franco Fichtner 2021-02-28 21:48:05 +01:00
parent 8a82febe64
commit f1afe998ad
1 changed files with 12 additions and 8 deletions
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20
src/etc/inc/interfaces.inc
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@ -2458,6 +2458,16 @@ function interface_configure($verbose = false, $interface = 'wan', $reload = fal
switch ($wancfg['ipaddrv6']) {
case 'slaac':
case 'dhcp6':
$realifv6 = get_real_interface($interface, 'inet6');
/* accept router advertisements for this interface */
set_single_sysctl('net.inet6.ip6.accept_rtadv', '1');
log_error("Accept router advertisements on interface {$realifv6}");
mwexecf('/sbin/ifconfig %s inet6 accept_rtadv -ifdisabled', $realifv6);
/* Enable RFC6204w support for IPv6 Customer Edge (CE) router */
set_single_sysctl('net.inet6.ip6.rfc6204w3', '1');
if (!isset($wancfg['dhcp6usev4iface'])) {
interface_dhcpv6_prepare($interface, $wancfg);
interface_dhcpv6_configure($interface, $wancfg);
@ -2478,6 +2488,8 @@ function interface_configure($verbose = false, $interface = 'wan', $reload = fal
}
break;
}
/* XXX we do not disable accept_rtadv on $realifv6 != $realif where unused */
}
if (!empty($wancfg['mtu'])) {
@ -2885,14 +2897,6 @@ function interface_dhcpv6_configure($interface = 'wan', $wancfg)
$realifv6 = get_real_interface($interface, 'inet6');
/* accept router advertisements for this interface */
set_single_sysctl('net.inet6.ip6.accept_rtadv', '1');
log_error("Accept router advertisements on interface {$realifv6}");
mwexecf('/sbin/ifconfig %s inet6 accept_rtadv -ifdisabled', $realifv6);
/* Enable RFC6204w support for IPv6 Customer Edge (CE) router */
set_single_sysctl('net.inet6.ip6.rfc6204w3', '1');
/* always kill rtsold in case of reconfigure */
killbypid('/var/run/rtsold.pid', 'TERM', true);