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* [net] adjust folder structure - 将lwip相关的文件夹，移入lwip文件夹 - Kconfig 分散到at netdev lwip sal文件夹中，使用menuconfig代替menu |
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| .. | ||
| README.md | ||
| SConscript | ||
| ipv4_nat.c | ||
| ipv4_nat.h | ||
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);