Hi, I am updating our code to support multiple simultaneous network interfaces, and have a question relating to DHCP.
Before calling dhcp_start(...) we call netif_set_default(...) - Is this strictly necessary? If I remove the call to netif_set_default, then DHCP doesn't appear to work correctly. With the net_set_default(..) call in place, DHCP works correctly, but (perhaps obviously) only on one interface at a time. Furthermore, having obtained an IP address, we then go on to call netconn_new(...) to create a Netconn on it, and find that unless netconn_bind_if(...) is called on the created netconn, then subsequent attempts to DHCP on a different interface cause problems for that netconn. I would like to understand better the expected behaviour of LWIP with respect to multiple network interfaces. and in particular how the DHCP process is meant to work: 1) Is a call to netif_set_default(..) required before calling dhcp_start(..)? 2) Is it possible for multiple network interfaces to DHCP simultaneously? 3) Is a call to netconn_bind_if(...) necessary if we want to guarantee that packets are sent and received using a particular network interface? Thanks, Toby -- Sent from: http://lwip.100.n7.nabble.com/lwip-users-f3.html _______________________________________________ lwip-users mailing list lwip-users@nongnu.org https://lists.nongnu.org/mailman/listinfo/lwip-users
