Added trace6

tools/trace6.md

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+# trace6
+
+Notes
+-------
+
+Help Text
+-------
+```
+trace6 v2.3 (c) 2013 by van Hauser / THC <vh@thc.org> www.thc.org
+
+Syntax: trace6 [-abdt] [-s src6] interface targetaddress [port]
+
+Options:
+  -a       insert a hop-by-hop header with router alert option.
+  -D       insert a destination extension header
+  -E       insert a destination extension header with an invalid option
+  -F       insert a one-shot fragmentation header
+  -b       instead of an ICMP6 Ping, use TooBig (you will not see the target)
+  -B       instead of an ICMP6 Ping, use PingReply (you will not see the target)
+  -d       resolves the IPv6 addresses to DNS.
+  -t       enables tunnel detection
+  -s src6  specifies the source IPv6 address
+Maximum hop reach: 31
+
+A basic but very fast traceroute6 program.
+If no port is specified, ICMP6 Ping requests are used, otherwise TCP SYN
+packets to the specified port. Options D, E and F can be use multiple times.
+```
+
+Example Usage
+-------
+
+Links
+-------