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intrig-unicamp / mininet-wifi

Emulator for Software-Defined Wireless Networks
https://mn-wifi.readthedocs.io/
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Missing bridge-utils in VM #388

Closed yanosz closed 2 years ago

yanosz commented 3 years ago

Btw. sorry, forgot that one the in beginning. I created my own VM now - this is not urgent. Not having other reports on this, I don't think that's needed to create a new VM becaus of this.

https://drive.google.com/file/d/1gRqGmkyPcw1waBlwfSGnOcucvXsHvATx/view?usp=sharing does not include bridge-utils.

This breaks mininet from emulating a non of-switch. I.e. 

from mininet.nodelib import LinuxBridge
s1 = net.addSwitch("s1", cls=LinuxBridge)

In the VM, newly created bridges use iptables / ip6tables / arbtable that break forwarding in mininet. To tackle this, I have:

/etc/modules-load.d/bridge.conf

br_netfilter

/etc/sysctl.d/bridge.conf

net.bridge.bridge-nf-call-ip6tables = 0
net.bridge.bridge-nf-call-iptables = 0
net.bridge.bridge-nf-call-arptables = 0
ramonfontes commented 3 years ago

bridge-utils added in the VM. ;)