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Connecting network namespace to internet via Linux bridge
LXC container no outgoing traffic with bridged network and public IP addressWill NAT bridged LXC unprivileged containers routes the http calls to host http server via the lan network?
I am running a Ubuntu 16.04 host. I have 3 network namespaces: ns1,ns2 and ns3.
# ip netns add ns1
# ip netns add ns2
# ip netns add ns3
I also created a Linux bridge using brctl called testbr.
Using 3 veth pairs, I connected the three network namespaces to the linux bridge (each pair has one end attached to a network namespace and other end attached to the bridge.
ns1 (veth11) --- (veth12) testbr
ns2 (veth22) --- (veth22) testbr
ns2 (veth32) --- (veth32) testbr
I also assigned them IP addresses.
ns1 (veth11: 10.0.0.1) --- (veth12) testbr
ns2 (veth22: 10.0.0.2) --- (veth22) testbr
ns2 (veth32: 10.0.0.3) --- (veth32) testbr
With this setup I am able to ping ns2 or ns3 from ns1. The following works:
# ip netns exec ns1 ping 10.0.0.2
I want to able to ping IPs outside my host from one of the network namespace. For the example, the following should work:
# ip netns exec ns1 ping 8.8.8.8
I want to ask how can I connect my containers (network namespaces) to the internet via the bridge I have setup.
container
asked 52 secs ago
JakeJake
1631213
add a comment |
I am running a Ubuntu 16.04 host. I have 3 network namespaces: ns1,ns2 and ns3.
# ip netns add ns1
# ip netns add ns2
# ip netns add ns3
I also created a Linux bridge using brctl called testbr.
Using 3 veth pairs, I connected the three network namespaces to the linux bridge (each pair has one end attached to a network namespace and other end attached to the bridge.
ns1 (veth11) --- (veth12) testbr
ns2 (veth22) --- (veth22) testbr
ns2 (veth32) --- (veth32) testbr
I also assigned them IP addresses.
ns1 (veth11: 10.0.0.1) --- (veth12) testbr
ns2 (veth22: 10.0.0.2) --- (veth22) testbr
ns2 (veth32: 10.0.0.3) --- (veth32) testbr
With this setup I am able to ping ns2 or ns3 from ns1. The following works:
# ip netns exec ns1 ping 10.0.0.2
I want to able to ping IPs outside my host from one of the network namespace. For the example, the following should work:
# ip netns exec ns1 ping 8.8.8.8
I want to ask how can I connect my containers (network namespaces) to the internet via the bridge I have setup.
container
asked 52 secs ago
JakeJake
1631213
add a comment |
I am running a Ubuntu 16.04 host. I have 3 network namespaces: ns1,ns2 and ns3.
# ip netns add ns1
# ip netns add ns2
# ip netns add ns3
I also created a Linux bridge using brctl called testbr.
Using 3 veth pairs, I connected the three network namespaces to the linux bridge (each pair has one end attached to a network namespace and other end attached to the bridge.
ns1 (veth11) --- (veth12) testbr
ns2 (veth22) --- (veth22) testbr
ns2 (veth32) --- (veth32) testbr
I also assigned them IP addresses.
ns1 (veth11: 10.0.0.1) --- (veth12) testbr
ns2 (veth22: 10.0.0.2) --- (veth22) testbr
ns2 (veth32: 10.0.0.3) --- (veth32) testbr
With this setup I am able to ping ns2 or ns3 from ns1. The following works:
# ip netns exec ns1 ping 10.0.0.2
I want to able to ping IPs outside my host from one of the network namespace. For the example, the following should work:
# ip netns exec ns1 ping 8.8.8.8
I want to ask how can I connect my containers (network namespaces) to the internet via the bridge I have setup.
container
asked 52 secs ago
JakeJake
1631213
I am running a Ubuntu 16.04 host. I have 3 network namespaces: ns1,ns2 and ns3.
# ip netns add ns1
# ip netns add ns2
# ip netns add ns3
I also created a Linux bridge using brctl called testbr.
Using 3 veth pairs, I connected the three network namespaces to the linux bridge (each pair has one end attached to a network namespace and other end attached to the bridge.
ns1 (veth11) --- (veth12) testbr
ns2 (veth22) --- (veth22) testbr
ns2 (veth32) --- (veth32) testbr
I also assigned them IP addresses.
ns1 (veth11: 10.0.0.1) --- (veth12) testbr
ns2 (veth22: 10.0.0.2) --- (veth22) testbr
ns2 (veth32: 10.0.0.3) --- (veth32) testbr
With this setup I am able to ping ns2 or ns3 from ns1. The following works:
# ip netns exec ns1 ping 10.0.0.2
I want to able to ping IPs outside my host from one of the network namespace. For the example, the following should work:
# ip netns exec ns1 ping 8.8.8.8
I want to ask how can I connect my containers (network namespaces) to the internet via the bridge I have setup.
container
container
asked 52 secs ago
JakeJake
1631213
asked 52 secs ago
JakeJake
1631213
asked 52 secs ago
JakeJake
1631213
asked 52 secs ago
JakeJake
1631213
asked 52 secs ago
JakeJake
1631213
1631213
add a comment |
add a comment |
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