Graylog Cisco Switch Input Failed

Graylog Central (peer support)
4

Hi @jan @shoothub

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I want to keep the log records of cisco switches in my system in graylog.
I wrote the necessary commands in Cisco Swicth. But I get the failed warning in graylog. I know that the udp port in the graylog is 1514.
I entered the necessary iptables command to the graylog server for this, but I still get the failed warning. When I looked at the server graylog server.log I saw Permision denied alerts.
I changed the udp port and made port forwarding.
I am waiting for your support on the subject.