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28 lines
1.0 KiB
28 lines
1.0 KiB
This target is only valid in the |
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.B nat |
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table, in the |
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.B POSTROUTING |
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chain. It should only be used with dynamically assigned IP (dialup) |
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connections: if you have a static IP address, you should use the SNAT |
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target. Masquerading is equivalent to specifying a mapping to the IP |
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address of the interface the packet is going out, but also has the |
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effect that connections are |
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.I forgotten |
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when the interface goes down. This is the correct behavior when the |
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next dialup is unlikely to have the same interface address (and hence |
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any established connections are lost anyway). |
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.TP |
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\fB\-\-to\-ports\fP \fIport\fP[\fB\-\fP\fIport\fP] |
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This specifies a range of source ports to use, overriding the default |
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.B SNAT |
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source port-selection heuristics (see above). This is only valid |
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if the rule also specifies one of the following protocols: |
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\fBtcp\fP, \fBudp\fP, \fBdccp\fP or \fBsctp\fP. |
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.TP |
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\fB\-\-random\fP |
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Randomize source port mapping |
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If option |
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\fB\-\-random\fP |
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is used then port mapping will be randomized (kernel >= 2.6.21). |
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.TP |
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IPv6 support available since Linux kernels >= 3.7.
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