Jan De Landtsheer
10025f9fa5
git-subtree-dir: components/mycelium git-subtree-split: afb32e0cdb2d4cdd17f22a5693278068d061f08c
57 lines
1.3 KiB
Bash
Executable File
57 lines
1.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# A simple shell script to setup a local network using network namespaces. This relies on the presence of the `ip` tool, part of `iproute2` package on linux.
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#
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# Note: this script requires root privilege
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set -ex
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# Create veth pairs
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ip l add p0 type veth peer p1
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ip l add p2 type veth peer p3
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ip l add p4 type veth peer p5
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ip l add p6 type veth peer p7
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# Create bridge
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ip l add mycelium-br type bridge
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# Add 1 part of every veth pair in the bridge
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ip l set p1 master mycelium-br
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ip l set p3 master mycelium-br
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ip l set p5 master mycelium-br
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ip l set p7 master mycelium-br
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# Add network namespaces
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ip netns add net1
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ip netns add net2
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ip netns add net3
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# Enable loopback devices in network namespaces
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ip -n net1 l set lo up
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ip -n net2 l set lo up
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ip -n net3 l set lo up
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# Add 1 veth end to every network namespace
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ip l set p2 netns net1
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ip l set p4 netns net2
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ip l set p6 netns net3
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# Set underlay IP addresses on the veth parts which are not in the bridge
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ip a add 10.0.2.1/24 dev p0
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ip -n net1 a add 10.0.2.2/24 dev p2
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ip -n net2 a add 10.0.2.3/24 dev p4
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ip -n net3 a add 10.0.2.4/24 dev p6
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# Set all veth interface to up
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ip l set p0 up
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ip l set p1 up
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ip -n net1 l set p2 up
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ip l set p3 up
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ip -n net2 l set p4 up
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ip l set p5 up
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ip -n net3 l set p6 up
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ip l set p7 up
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# Set bridge as up
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ip l set mycelium-br up
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