mdoc(7) police: tidy up the markup in revision 1.96.
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8c9d547186
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=89218
@ -376,7 +376,9 @@ is not a directly-reachable address, the route as found in
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the local routing table for that IP is used instead.
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the local routing table for that IP is used instead.
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If
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If
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.Ar ipaddr
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.Ar ipaddr
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is a local address, then on a packet matching a fwd rule,
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is a local address, then on a packet matching a
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.Cm fwd
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rule,
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it will be diverted to
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it will be diverted to
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.Ar port
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.Ar port
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on the local machine, keeping the local address of the socket
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on the local machine, keeping the local address of the socket
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@ -395,10 +397,15 @@ packet is used, so that a packet for an external machine port
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Y would be forwarded to local port Y.
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Y would be forwarded to local port Y.
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The kernel must have been compiled with the
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The kernel must have been compiled with the
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.Dv IPFIREWALL_FORWARD
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.Dv IPFIREWALL_FORWARD
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option. Bridging interferes with forwarding of packets not destined
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option.
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to the local system as they bypass ip_input() and ip_output() where
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Bridging interferes with forwarding of packets not destined
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forwarding is implimented. The
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to the local system as they bypass
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.Ar fwd
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.Fn ip_input
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and
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.Fn ip_output
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where forwarding is implemented.
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The
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.Cm fwd
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action does not change the contents of the packet at all so
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action does not change the contents of the packet at all so
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packets forwarded to another system will usually be rejected by that system
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packets forwarded to another system will usually be rejected by that system
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unless there is a matching rule on that system to capture them.
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unless there is a matching rule on that system to capture them.
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