About firewall bug.

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    yuda
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    I setup firewall forward rule with protocol Matching(IP) then finished it.

    The view is below :
    Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
    pkts bytes target prot opt in out source destination
    0 0 DROP 4 — * * 0.0.0.0/0 0.0.0.0/0

    This policy can’t drop any package.
    Why prot is “4” that I don’t understand ? I think it is “ip”.

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