Hi LWIP Users, I am currently working on a device which has two network interfaces. One from the uC and one over USB which is a virtual network device. My Lwip Version is 1.1.1 i know its old but i am not allowed to change it. Could lwip make problems when 2 netifs are registred? I set my uC netif as default because it uses dhcp/static ip for that i use the global netif_default for it. The virtual netif has a static ip. My Pseudo code looks like this:
1. init_lwip 2. HW init uC 3. netif_add(uCnetif,tcpip_input) 4. HW_init virtual device 5. netif_add(virtualnetif,tcpip_input) In the global variable netif_list is see both of the netifs with correct settings. I only set the uC netif as default, because for this i use different protocol for IP address (DHCP or static) and i set IP through my application thread in a thread save way :) I am now facing a problem that my upperlayer tasks using tcp or udp are not working when both interfaces are added. If only the uC netif is initialized it works. When 2 netifs over Wireshark is see that data is send to my device but i get a SACK_PERM=1, the device is not recveiving the data. Is this phenomen familiar to somebody? Should it be possible to use 2 netifs in the old lwip 1.1.1 ? Where could i start searching for the problem. Regards -- View this message in context: http://old.nabble.com/Problem-using-2-Netifs-tp34054004p34054004.html Sent from the lwip-users mailing list archive at Nabble.com. _______________________________________________ lwip-users mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/lwip-users
