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together into virtual networks. This has several advantages:
- It's more secure because the QEMU instances use Unix domain
sockets to talk to the switch.
- It doesn't depend on the host's network interfaces. (Local
multicast fails if there is no default gateway, so for instance it
fails if a laptop is not connected to any network.)
- VDE devices can be connected together to form arbitrary network
topologies.
- VDE has a "wirefilter" tool to emulate delays and packet loss,
which are useful for network testing.
svn path=/nixos/trunk/; revision=25526
10 lines
280 B
Nix
10 lines
280 B
Nix
# QEMU flags shared between various Nix expressions.
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{
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qemuNICFlags = nic: net: machine:
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"-net nic,vlan=${toString nic},macaddr=52:54:00:12:${toString net}:${toString machine},model=virtio " +
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"-net vde,vlan=${toString nic},sock=$QEMU_VDE_SOCKET_${toString net} ";
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}
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