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Route loopback packets via UIP_FALLBACK_INTERFACE. #2442

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Route loopback packets via UIP_FALLBACK_INTERFACE. #2442

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2 changes: 1 addition & 1 deletion core/net/ip/tcpip.c
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Original file line number Diff line number Diff line change
Expand Up @@ -586,7 +586,7 @@ tcpip_ipv6_output(void)
if(route == NULL) {
PRINTF("tcpip_ipv6_output: no route found, using default route\n");
nexthop = uip_ds6_defrt_choose();
if(nexthop == NULL) {
if(nexthop == NULL || uip_is_addr_loopback(&UIP_IP_BUF->destipaddr)) {
#ifdef UIP_FALLBACK_INTERFACE
PRINTF("FALLBACK: removing ext hdrs & setting proto %d %d\n",
uip_ext_len, *((uint8_t *)UIP_IP_BUF + 40));
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