--- ngrep-1.45.ds2/ngrep.c	2010-04-21 12:16:52.000000000 +0200
+++ ngrep-1.45.ds2-ipv6-patch/ngrep.c	2010-04-21 12:11:49.581088102 +0200
@@ -711,10 +711,12 @@ void process(u_char *d, struct pcap_pkth
             data = (unsigned char *)(tcp_pkt) + tcphdr_offset;
             len -= link_offset + ip_hl + tcphdr_offset;
 
+/* 
 #if USE_IPv6
             if (ip_ver == 6)
                 len -= ntohs(ip6_pkt->ip6_plen);
-#endif
+#endif 
+*/
 
             if ((int32_t)len < 0)
                 len = 0;
@@ -731,11 +733,12 @@ void process(u_char *d, struct pcap_pkth
             data = (unsigned char *)(udp_pkt) + udphdr_offset;
             len -= link_offset + ip_hl + udphdr_offset;
 
+/*
 #if USE_IPv6
             if (ip_ver == 6)
                 len -= ntohs(ip6_pkt->ip6_plen);
 #endif
-
+*/
             if ((int32_t)len < 0)
                 len = 0;
 
@@ -769,7 +772,7 @@ void process(u_char *d, struct pcap_pkth
             uint16_t icmp6hdr_offset    = (frag_offset) ? 0 : 4;
 
             data = (unsigned char *)(icmp6_pkt) + icmp6hdr_offset;
-            len -= link_offset + ip_hl + ntohs(ip6_pkt->ip6_plen) + icmp6hdr_offset;
+            len -= link_offset + ip_hl + icmp6hdr_offset;
 
             if ((int32_t)len < 0)
                 len = 0;