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This patch adds a script that creates a ip netns testbed. The network
topology looks like this:
veth0---veth0
host nsr1 ns2
veth0----veth0
ns1 veth2
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veth0
nsr2
* ns1 and ns2 are clients to generate traffic
* nsr1 and nsr2 run conntrackd to synchronize states
* nsr1 is the primary gateway
- veth2 is used to synchronize states
* nsr2 is the backup gateway
- veth0 is used to synchronize states
To set up the testbed:
% sudo ./conntrackd-netns-test.sh start
To test your testbed works, from ns2:
% sudo ip netns exec ns2 nc -l -p 8080
From ns1:
% sudo ip netns exec ns1 nc -vvv 10.0.1.2 8080
From nsr1:
% sudo ip netns exec nsr1 conntrackd -s -C conntrackd-nsr1.conf
cache internal:
current active connections: 1
[...]
cache external:
current active connections: 0
From nsr2:
% sudo ip netns exec nsr1 conntrackd -s -C conntrackd-nsr2.conf
cache internal:
current active connections: 0
[...]
cache external:
current active connections: 1
To stop it:
% sudo ./conntrackd-netns-test.sh stop
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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