diff options
| -rw-r--r-- | extensions/libxt_SNAT.man (renamed from extensions/libipt_SNAT.man) | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/extensions/libipt_SNAT.man b/extensions/libxt_SNAT.man index 093b09c4..f0620a21 100644 --- a/extensions/libipt_SNAT.man +++ b/extensions/libxt_SNAT.man @@ -7,21 +7,18 @@ and chains, and user-defined chains which are only called from those chains. It specifies that the source address of the packet should be modified (and all future packets in this connection will also be -mangled), and rules should cease being examined. It takes one type -of option: +mangled), and rules should cease being examined. It takes the +following options: .TP \fB\-\-to\-source\fP [\fIipaddr\fP[\fB\-\fP\fIipaddr\fP]][\fB:\fP\fIport\fP[\fB\-\fP\fIport\fP]] which can specify a single new source IP address, an inclusive range -of IP addresses, and optionally, a port range (which is only valid if -the rule also specifies -\fB\-p tcp\fP -or -\fB\-p udp\fP). +of IP addresses. Optionally a port range, +if the rule also specifies one of the following protocols: +\fBtcp\fP, \fBudp\fP, \fBdccp\fP or \fBsctp\fP. If no port range is specified, then source ports below 512 will be mapped to other ports below 512: those between 512 and 1023 inclusive will be mapped to ports below 1024, and other ports will be mapped to 1024 or above. Where possible, no port alteration will occur. - In Kernels up to 2.6.10, you can add several \-\-to\-source options. For those kernels, if you specify more than one source address, either via an address range or multiple \-\-to\-source options, a simple round-robin (one after another @@ -44,3 +41,5 @@ Kernels prior to 2.6.36-rc1 don't have the ability to in the .B INPUT chain. +.TP +IPv6 support available since Linux kernels >= 3.7. |