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[ntp]: Use loopback address when we don't have MGMT interface #3566

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merged 1 commit into from
Oct 7, 2019
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[ntp]: Use loopback address when we don't have MGMT interface #3566

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9 changes: 8 additions & 1 deletion files/image_config/ntp/ntp.conf.j2
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Original file line number Diff line number Diff line change
Expand Up @@ -27,12 +27,19 @@ filegen clockstats file clockstats type day enable
server {{ ntp_server }} iburst
{% endfor %}

#only listen on localhost and eth0 ips (default is to listen on all ip addresses)
#only listen on MGMT_INTERFACE, LOOPBACK_INTERFACE ip when MGMT_INTERFACE is not defined, or eth0
# if we don't have both of them (default is to listen on all ip addresses)
interface ignore wildcard
{% if MGMT_INTERFACE %}
{% for (mgmt_intf, mgmt_prefix) in MGMT_INTERFACE|pfx_filter %}
interface listen {{ mgmt_prefix | ip }}
{% endfor %}
{% elif LOOPBACK_INTERFACE %}
{% for (name, prefix) in LOOPBACK_INTERFACE|pfx_filter %}
{% if prefix | ipv4 and name == 'Loopback0' %}
interface listen {{ prefix | ip }}
{% endif %}
{% endfor %}
{% else %}
interface listen eth0
{% endif %}
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