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Message #73040
[Bug 1667863] Re: if a subnet has multiple static routes, the network interfaces file is invalid
[Expired for MAAS because there has been no activity for 60 days.]
** Changed in: maas
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1667863
Title:
if a subnet has multiple static routes, the network interfaces file is
invalid
Status in cloud-init:
Expired
Status in curtin:
Invalid
Status in MAAS:
Expired
Bug description:
I have multiple subnets, each has an additional custom static route.
those subnets are used by different bridges on the same node.
example:
brAdm (on interface enp9s0) - subnet 172.30.72.128/25 - static route 172.30.72.0/21 gw 172.30.72.129
brPublic (on interface ens9.2002) - subnet 172.30.80.128/25 - static route 172.30.80.0/21 gw 172.30.80.129
the resulting pre-up and post-up lines in /etc/network/interfaces are
malformed, which creates then the wrong routing table.
It seems the pre-down of one route and the post-up of the next route
are not separated by a newline.
See below:
post-up route add -net 172.30.80.0 netmask 255.255.248.0 gw 172.30.80.129 metric 0 || true
pre-down route del -net 172.30.80.0 netmask 255.255.248.0 gw 172.30.80.129 metric 0 || truepost-up route add -net 172.30.72.0 netmask 255.255.248.0 gw 172.30.72.129 metric 0 || true
pre-down route del -net 172.30.72.0 netmask 255.255.248.0 gw 172.30.72.129 metric 0 || true
Here's the entire resulting network configuration for reference.
note that a bunch of other bridge interfaces are created, but not used on this machine, so not configured.
----------------------------
cat /etc/network/interfaces
auto lo
iface lo inet loopback
dns-nameservers 172.30.72.130
dns-search r16maas.os maas
auto enp9s0
iface enp9s0 inet manual
mtu 9000
auto ens9
iface ens9 inet manual
mtu 9000
auto brAdm
iface brAdm inet static
address 172.30.72.132/25
hwaddress ether 08:9e:01:ab:fc:f6
bridge_ports enp9s0
bridge_fd 15
mtu 9000
auto brData
iface brData inet manual
hwaddress ether 00:02:c9:ce:7c:16
bridge_ports ens9.0
bridge_fd 15
mtu 9000
auto brExt
iface brExt inet manual
hwaddress ether 00:02:c9:ce:7c:16
bridge_ports ens9.0
bridge_fd 15
mtu 9000
auto brInt
iface brInt inet manual
hwaddress ether 00:02:c9:ce:7c:16
bridge_ports ens9.0
bridge_fd 15
mtu 9000
auto brPublic
iface brPublic inet static
address 172.30.80.132/25
gateway 172.30.80.129
hwaddress ether 00:02:c9:ce:7c:16
bridge_ports ens9.0
bridge_fd 15
mtu 9000
auto brStoClu
iface brStoClu inet manual
hwaddress ether 00:02:c9:ce:7c:16
bridge_ports ens9.0
bridge_fd 15
mtu 9000
auto brStoData
iface brStoData inet manual
hwaddress ether 00:02:c9:ce:7c:16
bridge_ports ens9.0
bridge_fd 15
mtu 9000
auto brAdm.52
iface brAdm.52 inet manual
vlan_id 52
mtu 1500
vlan-raw-device brAdm
auto ens9.0
iface ens9.0 inet manual
mtu 9000
vlan-raw-device ens9
post-up route add -net 172.30.80.0 netmask 255.255.248.0 gw 172.30.80.129 metric 0 || true
pre-down route del -net 172.30.80.0 netmask 255.255.248.0 gw 172.30.80.129 metric 0 || truepost-up route add -net 172.30.72.0 netmask 255.255.248.0 gw 172.30.72.129 metric 0 || true
pre-down route del -net 172.30.72.0 netmask 255.255.248.0 gw 172.30.72.129 metric 0 || true
source /etc/network/interfaces.d/*.cfg
----------------------------
route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
172.30.72.128 * 255.255.255.128 U 0 0 0 brAdm
172.30.80.128 * 255.255.255.128 U 0 0 0 brPublic
----------------------------
ifconfig
brAdm Link encap:Ethernet HWaddr 08:9e:01:ab:fc:f6
inet addr:172.30.72.132 Bcast:172.30.72.255 Mask:255.255.255.128
inet6 addr: fe80::a9e:1ff:feab:fcf6/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:9000 Metric:1
RX packets:15029 errors:0 dropped:0 overruns:0 frame:0
TX packets:1447 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:7393978 (7.3 MB) TX bytes:182411 (182.4 KB)
brAdm.52 Link encap:Ethernet HWaddr 08:9e:01:ab:fc:f6
inet6 addr: fe80::a9e:1ff:feab:fcf6/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7885 errors:0 dropped:0 overruns:0 frame:0
TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:398943 (398.9 KB) TX bytes:488 (488.0 B)
brData Link encap:Ethernet HWaddr 00:02:c9:ce:7c:16
inet6 addr: fe80::202:c9ff:fece:7c16/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:9000 Metric:1
RX packets:2 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:152 (152.0 B) TX bytes:648 (648.0 B)
brExt Link encap:Ethernet HWaddr ca:48:e5:20:50:fa
inet6 addr: fe80::c848:e5ff:fe20:50fa/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:648 (648.0 B)
brInt Link encap:Ethernet HWaddr fa:63:19:24:ed:80
inet6 addr: fe80::f863:19ff:fe24:ed80/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:648 (648.0 B)
brPublic Link encap:Ethernet HWaddr 00:02:c9:ce:7c:16
inet addr:172.30.80.132 Bcast:172.30.80.255 Mask:255.255.255.128
inet6 addr: fe80::9840:fbff:fe1f:b2b4/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:3 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:258 (258.0 B)
brStoClu Link encap:Ethernet HWaddr c2:09:5a:67:d3:da
inet6 addr: fe80::c009:5aff:fe67:d3da/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:648 (648.0 B)
brStoData Link encap:Ethernet HWaddr 0e:24:f0:9b:e5:ea
inet6 addr: fe80::c24:f0ff:fe9b:e5ea/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:648 (648.0 B)
enp9s0 Link encap:Ethernet HWaddr 08:9e:01:ab:fc:f6
inet6 addr: fe80::a9e:1ff:feab:fcf6/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:9000 Metric:1
RX packets:18629 errors:0 dropped:67 overruns:0 frame:0
TX packets:1454 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:7960838 (7.9 MB) TX bytes:190759 (190.7 KB)
Interrupt:18 Memory:dfd00000-dfd20000
ens9 Link encap:Ethernet HWaddr 00:02:c9:ce:7c:16
inet6 addr: fe80::202:c9ff:fece:7c16/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:9000 Metric:1
RX packets:9747 errors:0 dropped:67 overruns:0 frame:0
TX packets:154 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:658955 (658.9 KB) TX bytes:15148 (15.1 KB)
ens9.0 Link encap:Ethernet HWaddr 00:02:c9:ce:7c:16
UP BROADCAST RUNNING MULTICAST MTU:9000 Metric:1
RX packets:2 errors:0 dropped:0 overruns:0 frame:0
TX packets:14 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:152 (152.0 B) TX bytes:1156 (1.1 KB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:163 errors:0 dropped:0 overruns:0 frame:0
TX packets:163 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:12104 (12.1 KB) TX bytes:12104 (12.1 KB)
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