Libvirt network bridging issues Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)Bridging: Loosing WLAN network connection with 4addr on option - Why?Bridging two networks: access to bridge slow and unreliable14.04 no internet connection when I up the bridge interface (for LXC container)How to assign static IP to KVM VM after bridging?bridging two wireless interfacesDisable hidden bridging between network interfacesEnable network bridging on Ubuntu serverUnable to bridge network to qemu (libvirt) guestbridging KVM on Ubuntu 18.04Bridging, bonding and netplan
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Libvirt network bridging issues
Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)Bridging: Loosing WLAN network connection with 4addr on option - Why?Bridging two networks: access to bridge slow and unreliable14.04 no internet connection when I up the bridge interface (for LXC container)How to assign static IP to KVM VM after bridging?bridging two wireless interfacesDisable hidden bridging between network interfacesEnable network bridging on Ubuntu serverUnable to bridge network to qemu (libvirt) guestbridging KVM on Ubuntu 18.04Bridging, bonding and netplan
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
I want to set up a bridge so that guest VMs on my headless server use the LAN DHCP and not dnsmasq. I followed these instructions: https://jamielinux.com/docs/libvirt-networking-handbook/bridged-network.html#bridge-debian. Looking at the ifconfig results, it seems to give me exactly what I was looking for:
br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.210 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::4216:7eff:fe63:7516 prefixlen 64 scopeid 0x20<link>
ether 40:16:7e:63:75:16 txqueuelen 1000 (Ethernet)
RX packets 8255 bytes 653898 (653.8 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 633 bytes 60185 (60.1 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
enp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.195 netmask 255.255.255.0 broadcast 192.168.1.255
ether 40:16:7e:63:75:16 txqueuelen 1000 (Ethernet)
RX packets 42190 bytes 48646124 (48.6 MB)
RX errors 0 dropped 3 overruns 0 frame 0
TX packets 9808 bytes 889965 (889.9 KB)
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 2215 bytes 510180 (510.1 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2215 bytes 510180 (510.1 KB)
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 52:54:00:7a:ca:5e 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
However, if I try to SSH into my server (192.168.1.195) from another machine (192.168.1.196), I can't connect. Pings from the server can't seem to reach other devices on my LAN, but pings from the server to 8.8.8.8 seem to work OK. My /etc/network/interfaces file looks like the below (the MAC is my server's NIC):
iface enp3s0 inet manual
auto br0
iface br0 inet static
# Use the MAC address identified above.
hwaddress ether 40:16:7e:63:75:16
address 192.168.1.210
netmask 255.255.255.0
gateway 192.168.1.1
bridge_ports enp3s0
# If you want to turn on Spanning Tree Protocol, ask your hosting
# provider first as it may conflict with their network.
bridge_stp on
# If STP is off, set to 0. If STP is on, set to 2 (or greater).
bridge_fd 0
I've spent the last two days googling, and re-imaged my server a couple of times as well when things got too broken, and I think I'm just losing the plot... My server is Ubuntu 18.04.2, completely stock other than the libvirt and ssh packages installed. How can I get the server to be reachable by my other network machines?
virtualization network-bridge
asked 4 mins ago
Adam MacAdam Mac
12
New contributor
Adam Mac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
I want to set up a bridge so that guest VMs on my headless server use the LAN DHCP and not dnsmasq. I followed these instructions: https://jamielinux.com/docs/libvirt-networking-handbook/bridged-network.html#bridge-debian. Looking at the ifconfig results, it seems to give me exactly what I was looking for:
br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.210 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::4216:7eff:fe63:7516 prefixlen 64 scopeid 0x20<link>
ether 40:16:7e:63:75:16 txqueuelen 1000 (Ethernet)
RX packets 8255 bytes 653898 (653.8 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 633 bytes 60185 (60.1 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
enp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.195 netmask 255.255.255.0 broadcast 192.168.1.255
ether 40:16:7e:63:75:16 txqueuelen 1000 (Ethernet)
RX packets 42190 bytes 48646124 (48.6 MB)
RX errors 0 dropped 3 overruns 0 frame 0
TX packets 9808 bytes 889965 (889.9 KB)
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 2215 bytes 510180 (510.1 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2215 bytes 510180 (510.1 KB)
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 52:54:00:7a:ca:5e 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
However, if I try to SSH into my server (192.168.1.195) from another machine (192.168.1.196), I can't connect. Pings from the server can't seem to reach other devices on my LAN, but pings from the server to 8.8.8.8 seem to work OK. My /etc/network/interfaces file looks like the below (the MAC is my server's NIC):
iface enp3s0 inet manual
auto br0
iface br0 inet static
# Use the MAC address identified above.
hwaddress ether 40:16:7e:63:75:16
address 192.168.1.210
netmask 255.255.255.0
gateway 192.168.1.1
bridge_ports enp3s0
# If you want to turn on Spanning Tree Protocol, ask your hosting
# provider first as it may conflict with their network.
bridge_stp on
# If STP is off, set to 0. If STP is on, set to 2 (or greater).
bridge_fd 0
I've spent the last two days googling, and re-imaged my server a couple of times as well when things got too broken, and I think I'm just losing the plot... My server is Ubuntu 18.04.2, completely stock other than the libvirt and ssh packages installed. How can I get the server to be reachable by my other network machines?
virtualization network-bridge
asked 4 mins ago
Adam MacAdam Mac
12
New contributor
Adam Mac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
I want to set up a bridge so that guest VMs on my headless server use the LAN DHCP and not dnsmasq. I followed these instructions: https://jamielinux.com/docs/libvirt-networking-handbook/bridged-network.html#bridge-debian. Looking at the ifconfig results, it seems to give me exactly what I was looking for:
br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.210 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::4216:7eff:fe63:7516 prefixlen 64 scopeid 0x20<link>
ether 40:16:7e:63:75:16 txqueuelen 1000 (Ethernet)
RX packets 8255 bytes 653898 (653.8 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 633 bytes 60185 (60.1 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
enp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.195 netmask 255.255.255.0 broadcast 192.168.1.255
ether 40:16:7e:63:75:16 txqueuelen 1000 (Ethernet)
RX packets 42190 bytes 48646124 (48.6 MB)
RX errors 0 dropped 3 overruns 0 frame 0
TX packets 9808 bytes 889965 (889.9 KB)
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 2215 bytes 510180 (510.1 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2215 bytes 510180 (510.1 KB)
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 52:54:00:7a:ca:5e 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
However, if I try to SSH into my server (192.168.1.195) from another machine (192.168.1.196), I can't connect. Pings from the server can't seem to reach other devices on my LAN, but pings from the server to 8.8.8.8 seem to work OK. My /etc/network/interfaces file looks like the below (the MAC is my server's NIC):
iface enp3s0 inet manual
auto br0
iface br0 inet static
# Use the MAC address identified above.
hwaddress ether 40:16:7e:63:75:16
address 192.168.1.210
netmask 255.255.255.0
gateway 192.168.1.1
bridge_ports enp3s0
# If you want to turn on Spanning Tree Protocol, ask your hosting
# provider first as it may conflict with their network.
bridge_stp on
# If STP is off, set to 0. If STP is on, set to 2 (or greater).
bridge_fd 0
I've spent the last two days googling, and re-imaged my server a couple of times as well when things got too broken, and I think I'm just losing the plot... My server is Ubuntu 18.04.2, completely stock other than the libvirt and ssh packages installed. How can I get the server to be reachable by my other network machines?
virtualization network-bridge
asked 4 mins ago
Adam MacAdam Mac
12
New contributor
Adam Mac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I want to set up a bridge so that guest VMs on my headless server use the LAN DHCP and not dnsmasq. I followed these instructions: https://jamielinux.com/docs/libvirt-networking-handbook/bridged-network.html#bridge-debian. Looking at the ifconfig results, it seems to give me exactly what I was looking for:
br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.210 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::4216:7eff:fe63:7516 prefixlen 64 scopeid 0x20<link>
ether 40:16:7e:63:75:16 txqueuelen 1000 (Ethernet)
RX packets 8255 bytes 653898 (653.8 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 633 bytes 60185 (60.1 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
enp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.195 netmask 255.255.255.0 broadcast 192.168.1.255
ether 40:16:7e:63:75:16 txqueuelen 1000 (Ethernet)
RX packets 42190 bytes 48646124 (48.6 MB)
RX errors 0 dropped 3 overruns 0 frame 0
TX packets 9808 bytes 889965 (889.9 KB)
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 2215 bytes 510180 (510.1 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2215 bytes 510180 (510.1 KB)
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 52:54:00:7a:ca:5e 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
However, if I try to SSH into my server (192.168.1.195) from another machine (192.168.1.196), I can't connect. Pings from the server can't seem to reach other devices on my LAN, but pings from the server to 8.8.8.8 seem to work OK. My /etc/network/interfaces file looks like the below (the MAC is my server's NIC):
iface enp3s0 inet manual
auto br0
iface br0 inet static
# Use the MAC address identified above.
hwaddress ether 40:16:7e:63:75:16
address 192.168.1.210
netmask 255.255.255.0
gateway 192.168.1.1
bridge_ports enp3s0
# If you want to turn on Spanning Tree Protocol, ask your hosting
# provider first as it may conflict with their network.
bridge_stp on
# If STP is off, set to 0. If STP is on, set to 2 (or greater).
bridge_fd 0
I've spent the last two days googling, and re-imaged my server a couple of times as well when things got too broken, and I think I'm just losing the plot... My server is Ubuntu 18.04.2, completely stock other than the libvirt and ssh packages installed. How can I get the server to be reachable by my other network machines?
virtualization network-bridge
virtualization network-bridge
asked 4 mins ago
Adam MacAdam Mac
12
New contributor
Adam Mac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 4 mins ago
Adam MacAdam Mac
12
New contributor
Adam Mac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 4 mins ago
Adam MacAdam Mac
12
New contributor
Adam Mac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 4 mins ago
Adam MacAdam Mac
12
asked 4 mins ago
Adam MacAdam Mac
12
12
New contributor
Adam Mac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Adam Mac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Adam Mac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
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