The gateway G1 forwards the original data packet to its destination. The two Cisco 1921 routers are configured with: Main Network Cisco router: ip route 192.168.4. This document requires a basic knowledge of the terms used in connection with NAT. Packet leaves a device with source IP of 10.10.10.10 and destination of 20.20,20.20 When the packet hits the router (10.10.10.1) I want the router to redirect the destination of 20.20.20.20 to 30.30.30.30 (locally connected segment). In stable networks, packet forwarding exceptions, if they occur, are expected to happen at a reasonably low rates. Furthermore, when Layer 3 forwarding functionality into Layer 2 switches was integrated (which are now called Layer 3 switches) made packet forwarding operation more efficient, this eliminated the need for one-armed router (also known as router on a stick) design options and avoids limitations associated with such network configurations. And because we run a low TTL of 60 seconds, users around the world will be directed to the new IP address within 2 to 3 minutes. 03-07-2019 So keeping that in mind, here is what I will do on Router to change destination. However, with ICMP Redirect functionality enabled on Layer 3 interfaces, sub-optimal forwarding through multi-point Ethernet segments continues to present potential performance bottlenecks,even though for a different reason, asis explained in Nexus Platform Considerations section later in this document. We don't use term masquerade in the Cisco world I'm assuming you mean network address translation. With DNS, an automated change to the IP address is all that is required. Check the Web Authentication check box, and choose Centralized from the drop-down list. The address is then returned to the pool for use by another host. These mechanisms areimplemented at different points in the system. !- In these situations, focus on ICMP Redirect messages to retrieve information about sub-optimally forwarded traffic flows. This figure shows a simple network diagram with the router interfaces defined as inside and outside. So I can use PBR to have host 30.30.30.30 masquerade at host 20.20.20.20 ? The recipient of an ICMP redirect overrides its route table with the information given in the redirect packet. These features are typically used together to achieve desired traffic forwarding through the network. For definitions of global and local address, refer to NAT: Global and Local Definitions.
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