*** sflowtool-3.13-orig/src/sflowtool.c	2009-04-28 12:28:38.000000000 +0400
--- sflowtool-3.13/src/sflowtool.c	2009-04-28 12:29:59.000000000 +0400
***************
*** 687,692 ****
--- 687,701 ----
        else return;
      }
    }
+ 
+   if (type_len == 0x8864 && ptr[6]==0x00 && ptr[7]==0x21) {
+         /* IP over 8864 (PPPoE) */
+         sf_log("pppoeSessionID %lu\n", (ptr[2] << 8) + ptr[3]);
+         sf_log("pppoePayloadLength %lu\n", (ptr[4] << 8) + ptr[5]);
+         ptr += 8;
+         /* force the type_len to be IP so we can inline the IP decode below */
+         type_len = 0x0800;
+   }
    
    /* assume type_len is an ethernet-type now */
    sample->eth_type = type_len;