libs/rt-thread-official
libs
/
rt-thread-official
mirror of https://github.com/RT-Thread/rt-thread.git
4
0
Fork 0
Code Issues Releases Wiki Activity
rt-thread-official/components/net/lwip-nat
History
hiro_655 786dce62c4
[Doxygen][components][net]Fix some comments (#7280) 
修改了doxygen所报告的一些注释中的问题
 		2023-04-21 01:25:53 -04:00
..
README.md [net] adjust folder structure (#5587) 2022-02-20 00:07:45 +08:00
SConscript [net] adjust folder structure (#5587) 2022-02-20 00:07:45 +08:00
ipv4_nat.c [Doxygen][components][net]Fix some comments (#7280) 2023-04-21 01:25:53 -04:00
ipv4_nat.h [net] adjust folder structure (#5587) 2022-02-20 00:07:45 +08:00

README.md

lwIP NAT componenent

If you want to use lwIP NAT componenent, please define LWIP_USING_NAT in rtconfig.h.

In this case the network 213.129.231.168/29 is nat'ed when packets are sent to the destination network 10.0.0.0/24 (untypical example - most users will have the other way around).

Use following code to add a NAT entry:

ip_nat_entry_t nat_entry;

nat_entry.out_if = (struct netif *)&emac_if1; nat_entry.in_if = (struct netif *)&emac_if2; IP4_ADDR(&nat_entry.source_net, 213, 129, 231, 168); IP4_ADDR(&nat_entry.source_netmask, 255, 255, 255, 248); IP4_ADDR(&nat_entry.dest_net, 10, 0, 0, 0); IP4_ADDR(&nat_entry.source_netmask, 255, 0, 0, 0); ip_nat_add(&_nat_entry);