openstack/devstack
Code Issues Proposed changes

Enable accept_ra before enabling forwarding

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We need to enable accept_ra before we enable forwarding, otherwise
existing addresses and routes may get dropped until the next RA is
received, possibly causing connection errors in the meantime.

Change-Id: I1fdeede59547de896ed89222ecf121fd9e6b810d
This commit is contained in:
Jens Harbott 2019-09-19 13:57:43 +00:00
parent c6a4c4547d
commit 0c9a6cab91
1 changed files with 2 additions and 2 deletions
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4
lib/neutron_plugins/services/l3
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@ -395,8 +395,6 @@ function _neutron_configure_router_v6 {
# This logic is specific to using the l3-agent for layer 3
if is_service_enabled q-l3 || is_service_enabled neutron-l3; then
# Ensure IPv6 forwarding is enabled on the host
sudo sysctl -w net.ipv6.conf.all.forwarding=1
# if the Linux host considers itself to be a router then it will
# ignore all router advertisements
# Ensure IPv6 RAs are accepted on interfaces with a default route.
@ -409,6 +407,8 @@ function _neutron_configure_router_v6 {
# device name would be reinterpreted as a slash, causing an error.
sudo sysctl -w net/ipv6/conf/$d/accept_ra=2
done
# Ensure IPv6 forwarding is enabled on the host
sudo sysctl -w net.ipv6.conf.all.forwarding=1
# Configure and enable public bridge
# Override global IPV6_ROUTER_GW_IP with the true value from neutron
IPV6_ROUTER_GW_IP=$(openstack --os-cloud devstack-admin --os-region "$REGION_NAME" port list -c 'Fixed IP Addresses' | grep $ipv6_pub_subnet_id | awk -F'ip_address' '{ print $2 }' | cut -f2 -d\' | tr '\n' ' ')