[lwip-users] options of pap and chap??

[applehuu]

In windows XP,i use pap or chap(the XP's dial program),it can dialing
successful.
But in lwip,use pap or chap can't  auth.
In lwip,how to select pap or chap?

i do it like this:

void pppInit(void)
{
...
pppSetAuth(PPPAUTHTYPE_ANY, USER, PASSWORD);  //can't working successful
//pppSetAuth(PPPAUTHTYPE_PAP, USER, PASSWORD);//can't working successful
//pppSetAuth(PPPAUTHTYPE_CHAP, USER, PASSWORD);//can't working successful
...
}

#ifndef PAP_SUPPORT
#define PAP_SUPPORT                    1  /*Set for  PAP*/
#endif

#ifndef CHAP_SUPPORT
#define CHAP_SUPPORT                    0      /* Set for CHAP. */
#endif

Do i need  to modify other code for auth?