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# k3sa
adamant-kite-43734
05/09/2023, 7:39 PMThis message was deleted.
b
bland-account-99790
05/11/2023, 3:11 PMwhat is your secondary CNI plugin?
🎯 1
a
acoustic-sunset-13848
05/15/2023, 1:14 PMflannel. what we noticed is that the iptables FORWARD chain has a default policy of DROP. If we changes this default policy to ACCEPT then things started working. now sure how/why the default policy was DROP or if multus should have modified this on deploy.
b
bland-account-99790
05/15/2023, 4:30 PMMultus does not modify anything in the CNI plugin configuration. It is just a multiplexer that tricks Kubernetes into thinking that there is only one CNI plugin, even though there are more than one
bland-account-99790
05/15/2023, 4:31 PMFlannel includes an instruction that adds `ACCEPT`to iptables FORWARD chain, so it should work 🤔
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