Open tcp port 2005 on cisco router

[deniz () edizayn com tr (Deniz CEVIK)]

        Hi All,

        While I am scanning one of our customer's border router, I have seen that
TCP port 2005 is open and reachable from Internet. As far as, I know this
port is being used for async. connection to other devices in this router. Is
that normal to see this port as open from Internet?

        BR


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