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| author | Steven Dake <stdake@cisco.com> | 2015-04-15 16:38:09 -0700 |
|---|---|---|
| committer | Steven Dake <stdake@cisco.com> | 2015-04-15 19:18:41 -0700 |
| commit | 64a2cf40a5a0690afc17a804d6ffa44520553535 (patch) | |
| tree | 3d92516f5a37ef5f8a7b029a0fbcf953427d2169 | |
| parent | 095fbd7d7c07984141bda1d31779a3b046c6be90 (diff) | |
| download | kolla-64a2cf40a5a0690afc17a804d6ffa44520553535.tar.gz kolla-64a2cf40a5a0690afc17a804d6ffa44520553535.zip | |
Add workaround to work with cirros image
The cirros image uses an old dhcp client which does not work
properly with hardware that has checksum offload enabled. Add
a bootp rule to rewrite the checksum via iptables.
Latest cirros 0.3.33 is afflicted by this bug.
Change-Id: Ibfd1f87af5d0bef9fcb1354121e76e4e0db8ab5e
| -rwxr-xr-x | docker/neutron/neutron-agents/config-scripts/config-dhcp-agent.sh | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/docker/neutron/neutron-agents/config-scripts/config-dhcp-agent.sh b/docker/neutron/neutron-agents/config-scripts/config-dhcp-agent.sh index 415644aa6..08d2b21b1 100755 --- a/docker/neutron/neutron-agents/config-scripts/config-dhcp-agent.sh +++ b/docker/neutron/neutron-agents/config-scripts/config-dhcp-agent.sh @@ -18,6 +18,14 @@ check_required_vars VERBOSE_LOGGING DEBUG_LOGGING MECHANISM_DRIVERS \ cfg=/etc/neutron/dhcp_agent.ini neutron_conf=/etc/neutron/neutron.conf +# Workaround bug in dhclient in cirros images which does not correctly +# handle setting checksums of packets when using hardware with checksum +# offloading. See: +# https://www.rdoproject.org/forum/discussion/567/packstack-allinone-grizzly-cirros-image-cannot-get-a-dhcp-address-when-a-centos-image-can/p1 + +/usr/sbin/iptables -A POSTROUTING -t mangle -p udp --dport bootpc \ + -j CHECKSUM --checksum-fill + if [[ ${MECHANISM_DRIVERS} =~ linuxbridge ]]; then interface_driver="neutron.agent.linux.interface.BridgeInterfaceDriver" elif [[ ${MECHANISM_DRIVERS} == "openvswitch" ]]; then |