12:03 p.m.
Most probably you got libvirtd.service running (if the output is from a VM).
Just disable it via 'systemctl disable --now libvirtd.service' and to verify that
after reboot everything will be fine -> reboot the VM.
Best Regards,
Strahil Nikolov
В петък, 11 септември 2020 г., 18:35:33 Гринуич+3, valerio.luccio(a)nyu.edu
<valerio.luccio(a)nyu.edu> написа:
OK, got the network to my internal switch working (thanks Edward), but still no luck with
the university backbone.
One thing I did notice, which is different from my engine, is that the VM has defined the
network interface virbr0 with static ip 192.168.122.1/26, which might be a problem since
these machine are hooked to an internal network that is also 192.168 (192.168.122.1 is the
IP of one of the gateways) and the IP of this VM is 192.168.39.87.
The questions are: what is virbr0 for, should I change the IP, to what ?
Here's some output, if it helps (the 10.20.30 network is my internal switch):
$ ifconfig
enp1s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.39.87 netmask 255.255.255.192 broadcast 192.168.39.127
inet6 fe80::56a3:9c14:ce9:84e4 prefixlen 64 scopeid 0x20<link>
ether 56:6f:41:2d:00:00 txqueuelen 1000 (Ethernet)
RX packets 8002 bytes 541580 (528.8 KiB)
RX errors 0 dropped 6 overruns 0 frame 0
TX packets 797 bytes 37166 (36.2 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
enp7s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.20.30.161 netmask 255.255.255.192 broadcast 10.20.30.191
inet6 fe80::5d02:5880:5073:7fdd prefixlen 64 scopeid 0x20<link>
ether 56:6f:41:2d:00:03 txqueuelen 1000 (Ethernet)
RX packets 2347 bytes 373160 (364.4 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 50 bytes 5422 (5.2 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 1132 bytes 111424 (108.8 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1132 bytes 111424 (108.8 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
ether 52:54:00:38:03:68 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
$ route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.39.65 0.0.0.0 UG 100 0 0 enp1s0
10.20.30.128 0.0.0.0 255.255.255.192 U 101 0 0 enp7s0
192.168.39.64 0.0.0.0 255.255.255.192 U 100 0 0 enp1s0
192.168.122.0 0.0.0.0 255.255.255.0 U 425 0 0 virbr0
Thanks
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