In diesem Post m\u00f6chte ich nicht erkl\u00e4ren wie UDP Hole Punching funktioniert, sondern mir nur schnell die Befehle notieren.<\/p>\n
Client starten. -u = UDP; -l = listen;
\nlocal\/1# nc -u -l -p 14141<\/p>\n
Ein Paket an den remote Rechner senden. -c = count; -2 UDP Mode; -s source port, -p = dest port
\nlocal\/2# hping2 -c 1 -2 -s 14141 -p 5353 remote<\/p>\n
Oder ohne root
\nnc -p 14141 -u remote 5353<\/p>\n
Nun kennt NAT eine g\u00fcltige IP+Port und leitet eingehende Pakete weiter<\/p>\n
remote# echo \"hello\" | nc -p 5353 -u local-fw 14141<\/p>\n
Das ganze ist mehr oder weniger geklaut [1] . Weitere Informationen gibts unter dem Suchwort STUN und [2]<\/p>\n
[1] http:\/\/www.heise.de\/security\/Wie-Skype-Co-Firewalls-umgehen--\/artikel\/82054\/1
\n[2] http:\/\/www.ietf.org\/rfc\/rfc3489.txt<\/p>\n","protected":false},"excerpt":{"rendered":"
In diesem Post m\u00f6chte ich nicht erkl\u00e4ren wie UDP Hole Punching funktioniert, sondern mir nur schnell die Befehle notieren. Client starten. -u = UDP; -l = listen; local\/1# nc -u -l -p 14141 Ein Paket an den remote Rechner senden. -c = count; -2 UDP Mode; -s source port, -p = dest port local\/2# hping2 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-57","post","type-post","status-publish","format-standard","hentry","category-allgemein"],"_links":{"self":[{"href":"http:\/\/roboblog.fatal-fury.de\/index.php?rest_route=\/wp\/v2\/posts\/57","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/roboblog.fatal-fury.de\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/roboblog.fatal-fury.de\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/roboblog.fatal-fury.de\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/roboblog.fatal-fury.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=57"}],"version-history":[{"count":0,"href":"http:\/\/roboblog.fatal-fury.de\/index.php?rest_route=\/wp\/v2\/posts\/57\/revisions"}],"wp:attachment":[{"href":"http:\/\/roboblog.fatal-fury.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=57"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/roboblog.fatal-fury.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=57"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/roboblog.fatal-fury.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=57"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}