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#!/bin/sh
# As PPPoE is an "on demand" interface we need to re-configure it when it
# becomes up
if [ "$6" != "{{ ifname }}" ]; then
exit
fi
{% if ipv6 is defined and ipv6.address is defined and ipv6.address.autoconf is defined -%}
# add some info to syslog
DIALER_PID=$(cat /var/run/{{ ifname }}.pid)
logger -t pppd[$DIALER_PID] "executing $0"
logger -t pppd[$DIALER_PID] "configuring interface {{ ifname }} via {{ source_interface }}"
# Configure interface-specific Host/Router behaviour.
# Note: It is recommended to have the same setting on all interfaces; mixed
# router/host scenarios are rather uncommon. Possible values are:
#
# 0 Forwarding disabled
# 1 Forwarding enabled
#
echo 1 > /proc/sys/net/ipv6/conf/{{ ifname }}/forwarding
# Accept Router Advertisements; autoconfigure using them.
#
# It also determines whether or not to transmit Router
# Solicitations. If and only if the functional setting is to
# accept Router Advertisements, Router Solicitations will be
# transmitted. Possible values are:
#
# 0 Do not accept Router Advertisements.
# 1 Accept Router Advertisements if forwarding is disabled.
# 2 Overrule forwarding behaviour. Accept Router Advertisements
# even if forwarding is enabled.
#
echo 2 > /proc/sys/net/ipv6/conf/{{ ifname }}/accept_ra
# Autoconfigure addresses using Prefix Information in Router Advertisements.
echo 1 > /proc/sys/net/ipv6/conf/{{ ifname }}/autoconf
{% endif %}
{% if dhcpv6_options is defined and dhcpv6_options.pd is defined %}
# Start wide dhcpv6 client
systemctl start dhcp6c@{{ ifname }}.service
{% endif %}
{% if default_route != 'none' -%}
# See https://phabricator.vyos.net/T2248 & T2220. Determine if we are enslaved
# to a VRF, this is needed to properly insert the default route.
SED_OPT="^ipv6 route"
VRF_NAME=""
if [ -d /sys/class/net/{{ ifname }}/upper_* ]; then
# Determine upper (VRF) interface
VRF=$(basename $(ls -d /sys/class/net/{{ ifname }}/upper_*))
# Remove upper_ prefix from result string
VRF=${VRF#"upper_"}
# generate new SED command
SED_OPT="vrf ${VRF}"
# generate vtysh option
VRF_NAME="vrf ${VRF}"
fi
{% if default_route == 'auto' -%}
# Only insert a new default route if there is no default route configured
routes=$(vtysh -c "show running-config" | sed -n "/${SED_OPT}/,/!/p" | grep ::/0 | wc -l)
if [ "$routes" -ne 0 ]; then
exit 1
fi
{% elif default_route == 'force' -%}
# Retrieve current static default routes and remove it from the routing table
vtysh -c "show running-config" | sed -n "/${SED_OPT}/,/!/p" | grep ::/0 | while read route ; do
vtysh -c "conf t" ${VTY_OPT} -c "no ${route} ${VRF_NAME}"
done
{% endif %}
# Add default route to default or VRF routing table
vtysh -c "conf t" ${VTY_OPT} -c "ipv6 route ::/0 {{ ifname }} ${VRF_NAME}"
logger -t pppd[$DIALER_PID] "added default route via {{ ifname }} ${VRF_NAME}"
{% endif %}
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