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--- tcpreplay [2016/08/04 14:32] – vytvořeno djbuldog
+++ tcpreplay [2025/08/28 10:09] (aktuální) – upraveno mimo DokuWiki 127.0.0.1
@@ Řádek 1: / Řádek 1: @@
 ====== tcpreplay ======
-  * simulace příchozího provozu
+  * tcpreplay injektuje pakety pouze pro ochodzí směr
-    * tcpreplay injektuje pakety pouze pro ochodzí směr
+  * viz http://tcpreplay.appneta.com/wiki/faq.html
-    * viz http://tcpreplay.appneta.com/wiki/faq.html
+    * Q: Can I send packets on the same computer running tcpreplay?
-      * Q: Can I send packets on the same computer running tcpreplay?
+    * Generally speaking no. When tcpreplay sends packets, it injects them between the TCP/IP stack of the system and the device driver of the network card. The result is the TCP/IP stack system running tcpreplay never sees the packets.
-      * Generally speaking no. When tcpreplay sends packets, it injects them between the TCP/IP stack of the system and the device driver of the network card. The result is the TCP/IP stack system running tcpreplay never sees the packets.
+    * One suggestion that has been made is using something like VMWare, Parallels or Xen. Running tcpreplay in the virtual machine (guest) would allow packets to be seen by the host operating system.
-      * One suggestion that has been made is using something like VMWare, Parallels or Xen. Running tcpreplay in the virtual machine (guest) would allow packets to be seen by the host operating system.
-    * http://stackoverflow.com/questions/34004186/injecting-an-incoming-packet-to-a-network-interface
-      * další možnosti jsou použít dummy zařízení
-  * přehrávání na loopback
+  * http://stackoverflow.com/questions/34004186/injecting-an-incoming-packet-to-a-network-interface
-    * https://digriz.org.uk/tutorials/loopback-tcpreplay
+  * https://digriz.org.uk/tutorials/loopback-tcpreplay
-    * http://superuser.com/questions/646862/why-tcpreplay-show-warning-when-packets-replayed-on-loopback-interface
+  * http://superuser.com/questions/646862/why-tcpreplay-show-warning-when-packets-replayed-on-loopback-interface
+  * Tak co zkusit loopback?
+    * Q: Why doesn't my application see packets replayed over loopback?
+    * Most users are surprised, when they try replaying UDP traffic over loopback, that the listening daemon never sees the traffic. This turns out to be a limitation of the loopback interface on many operating systems. One contributing factor may be capturing traffic on an Ethernet port, rewriting the IP addresses but not the L2 header. Since the loopback interface doesn't use an Ethernet L2 header, the IP stack of the operating system is unable to parse the packet and deliver it to the listening daemon.
+  * Tak co tu hlavičku přepsat?
+  * http://tcpreplay.synfin.net/wiki/tcprewrite
+    * tcprewrite supports a lot of Layer 2 rewriting options to help you modify packets so that traffic can flow through switches, firewalls, routers, IPS's and many other forwarding devices.
+    * Plugins supported in output mode:
+      * Ethernet (enet)
+      * Cisco HDLC (hdlc)
+      * User defined Layer 2 (user)