[lwip-users] Integrate DNS into LWIP main code

[Menon, Deepa]

Hi,

 

I want to start DNS client in my web server application and get a netbios name ‘ABC’ for my server.

I have added dns.c in my project.  I have DHCP implemented in the application but I am struggling to start the DNS application.

Can anyone please help me by providing a method to start the DNS application along with DHCP.

 

I am using the following settings to start DHCP and get an IP address for the embedded web server in my application.

 

1                     Following two lines are added in lwipopts.h file.

#define LWIP_DHCP               1

                   #define DHCP_DOES_ARP_CHECK     1

 

2.                   Following code is added to after lwIP_Init():

 

                   #ifdef LWIP_DHCP

                        dhcp_start(&EMAC_if);

                        while (EMAC_if.ip_addr.addr == 0)

                        {

                                    sys_msleep(DHCP_FINE_TIMER_MSECS);

                                    dhcp_fine_tmr();

                                    mscnt += DHCP_FINE_TIMER_MSECS;

                                    if (mscnt >= DHCP_COARSE_TIMER_SECS*1000)

                                    {

                                                dhcp_coarse_tmr();

                                                mscnt = 0;

                                    }          

                        }

                  #endif         

 

Thanks,

 

Deepa M

Honeywell Technologies