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| author | peter <peter@FreeBSD.org> | 1998-06-20 18:29:38 +0000 |
|---|---|---|
| committer | peter <peter@FreeBSD.org> | 1998-06-20 18:29:38 +0000 |
| commit | 9529c38ad8859b9f325867d97f266101f2c4dca3 (patch) | |
| tree | 7c9206c000e7ad493db842a3fecdf77deacb096a /contrib/ipfilter/man/ipnat.5 | |
| parent | 58e3555d887b6a5b1f460d8ee84ca4e97c0a8217 (diff) | |
| download | FreeBSD-src-9529c38ad8859b9f325867d97f266101f2c4dca3.zip FreeBSD-src-9529c38ad8859b9f325867d97f266101f2c4dca3.tar.gz | |
Import trimmed version of ipfilter 3.2.7.
Obtained from: Darren Reed via http://cheops.anu.edu.au/~avalon/
Diffstat (limited to 'contrib/ipfilter/man/ipnat.5')
| -rw-r--r-- | contrib/ipfilter/man/ipnat.5 | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/contrib/ipfilter/man/ipnat.5 b/contrib/ipfilter/man/ipnat.5 index 7832623..576e9c2 100644 --- a/contrib/ipfilter/man/ipnat.5 +++ b/contrib/ipfilter/man/ipnat.5 @@ -1,6 +1,6 @@ .TH IPNAT 5 .SH NAME -ipnat \- IP NAT file format +ipnat, ipnat.conf \- IP NAT file format .SH DESCRIPTION The format for files accepted by ipnat is described by the following grammar: .LP @@ -37,10 +37,10 @@ range of port numbers to remap into given as \fBport-number:port-number\fP. .SH Examples .PP To change IP#'s used internally from network 10 into an ISP provided 8 bit -subnet at 209.1.2.0, the following would be used: +subnet at 209.1.2.0 through the ppp0 interface, the following would be used: .LP .nf -map 10.0.0.0/8 -> 209.1.2.0/24 +map ppp0 10.0.0.0/8 -> 209.1.2.0/24 .fi .PP The obvious problem here is we're trying to squeeze over 16,000,000 IP @@ -48,7 +48,7 @@ addresses into a 254 address space. To increase the scope, remapping for TCP and/or UDP, port remapping can be used; .LP .nf -map 10.0.0.0/8 -> 209.1.2.0/24 portmap tcp/udp 1025:65000 +map ppp0 10.0.0.0/8 -> 209.1.2.0/24 portmap tcp/udp 1025:65000 .fi .PP which falls only 527,566 `addresses' short of the space available in network @@ -56,15 +56,17 @@ which falls only 527,566 `addresses' short of the space available in network follows: .LP .nf -map 10.0.0.0/8 -> 209.1.2.0/24 portmap tcp/udp 1025:65000 -map 10.0.0.0/8 -> 209.1.2.0/24 +map ppp0 10.0.0.0/8 -> 209.1.2.0/24 portmap tcp/udp 1025:65000 +map ppp0 10.0.0.0/8 -> 209.1.2.0/24 .fi .PP so that all TCP/UDP packets were port mapped and only other protocols, such as ICMP, only have their IP# changed. .SH FILES +/dev/ipnat +.br /etc/services .br /etc/hosts .SH SEE ALSO -ipnat(1), ipf(5), ipnat(4) +ipnat(4), hosts(5), ipf(5), services(5), ipf(8), ipnat(8) |
