[lwip-devel] [bug #37549] Need to disable HISADDR check for PPP

[Mark Lakata]

URL:
  <http://savannah.nongnu.org/bugs/?37549>

                 Summary: Need to disable HISADDR check for PPP
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: lakata
            Submitted on: Thu 11 Oct 2012 05:54:23 PM GMT
                Category: Contrib
                Severity: 3 - Normal
              Item Group: Change Request
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: 
            lwIP version: 1.4.0

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Details:

The function ipcp_up() checks the HISADDR field is not zero, and aborts the
PPP connection if it is. 

This is an optional field and many 3G providers do not supply this field.
There should be a compile time option to disable this check. 

The suggested change is adding a compiler flag, such as PPP_HISADDR_WARNING


  if (ho->hisaddr == 0) {
#ifdef PPP_HISADDR_WARNING
    IPCPDEBUG(LOG_ERR, ("Warning: Remote IP address is 0\n"));
#else
    IPCPDEBUG(LOG_ERR, ("Could not determine remote IP address\n"));
    ipcp_close(f->unit, "Could not determine remote IP address");
    return;
#endif
  }





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