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@@ -51,6 +51,10 @@ to the first subnet of Network.
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* ```SubnetMax``` (string): The end of the IP range at which the subnet allocation should end with. Defaults to
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the last subnet of Network.
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+### Firewalls
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+flannel uses UDP port 8285 for sending encapsulated packets. Make sure that your firewall rules allow
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+this traffic for all hosts participating in the overlay network.
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+
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## Running
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Once you have pushed configuration JSON to etcd, you can start flannel. If you published your
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@@ -69,7 +73,6 @@ MTU that it supports.
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-etcd-endpoint="http://127.0.0.1:4001": etcd endpoint
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-etcd-prefix="/coreos.com/network": etcd prefix
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-iface="": interface to use (IP or name) for inter-host communication. Defaults to the interface for the default route on the machine.
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--port=8285: UDP port to use for inter-node communications
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-subnet-file="/run/flannel/subnet.env": filename where env variables (subnet and MTU values) will be written to
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-v=0: log level for V logs. Set to 1 to see messages related to data path
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```
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Eugene Yakubovich