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Change the loopback interface netmask from /8 to /16 #5353

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Merged
lguohan merged 1 commit into from
Sep 15, 2020
Merged

Change the loopback interface netmask from /8 to /16 #5353

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5 changes: 4 additions & 1 deletion files/image_config/interfaces/interfaces.j2
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,7 @@ iface mgmt
# The loopback network interface for mgmt VRF that is required for applications like NTP
up ip link add lo-m type dummy
up ip link set dev lo-m master mgmt
up ip addr add 127.0.0.1/8 dev lo-m
up ip addr add 127.0.0.1/16 dev lo-m
up ip link set lo-m up
down ip link delete dev lo-m
{% endif %}
Expand All @@ -22,6 +22,9 @@ iface mgmt
# The loopback network interface
auto lo
iface lo inet loopback
address 127.0.0.1
netmask 255.255.0.0
post-up ip addr del 127.0.0.1/8 dev lo
{% endblock loopback %}
{% block mgmt_interface %}

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3 changes: 3 additions & 0 deletions src/sonic-config-engine/tests/sample_output/interfaces
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Expand Up @@ -6,6 +6,9 @@
# The loopback network interface
auto lo
iface lo inet loopback
address 127.0.0.1
netmask 255.255.0.0
post-up ip addr del 127.0.0.1/8 dev lo

# The management network interface
auto eth0
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5 changes: 4 additions & 1 deletion src/sonic-config-engine/tests/sample_output/mvrf_interfaces
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Original file line number Diff line number Diff line change
Expand Up @@ -9,12 +9,15 @@ iface mgmt
# The loopback network interface for mgmt VRF that is required for applications like NTP
up ip link add lo-m type dummy
up ip link set dev lo-m master mgmt
up ip addr add 127.0.0.1/8 dev lo-m
up ip addr add 127.0.0.1/16 dev lo-m
up ip link set lo-m up
down ip link delete dev lo-m
# The loopback network interface
auto lo
iface lo inet loopback
address 127.0.0.1
netmask 255.255.0.0
post-up ip addr del 127.0.0.1/8 dev lo

# The management network interface
auto eth0
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