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new network feature: NAPT (widely known as NAT) (#6360)

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* lwIP: napt patches (enabled with lwip2 w/o IPv6 w/ features)
This commit is contained in:
david gauchard
2019-08-28 17:51:14 +02:00
committed by GitHub
parent 7436f3802a
commit 06f1865628
18 changed files with 497 additions and 8 deletions
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13
tools/sdk/lwip2/include/lwipopts.h
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@ -741,7 +741,7 @@
* interface, define this to 0.
*/
#if !defined IP_FORWARD || defined __DOXYGEN__
#define IP_FORWARD 0
#define IP_FORWARD LWIP_FEATURES
#endif
/**
@ -772,6 +772,10 @@
#define IP_FRAG 0
#endif /* !LWIP_IPV4 */
#ifndef IP_NAPT
#define IP_NAPT (LWIP_FEATURES && !LWIP_IPV6)
#endif
/**
* IP_OPTIONS_ALLOWED: Defines the behavior for IP options.
* IP_OPTIONS_ALLOWED==0: All packets with IP options are dropped.
@ -3496,6 +3500,13 @@
* @}
*/
/**
* NAPT_DEBUG: Enable debugging for NAPT.
*/
#ifndef NAPT_DEBUG
#define NAPT_DEBUG LWIP_DBG_OFF
#endif
/**
* LWIP_TESTMODE: Changes to make unit test possible
*/