Network Address Translation (NAT) replaces IP addresses in a packet with different IP addresses. NAT is useful for conserving IP addresses, and connecting a private network with an unregistered address to a public network like Internet. Secondary addresses can be configured on Cisco routers when the same physical segment to which a router interface is connected serves multiple logical networks.
While configuring NAT, interfaces need to be identified as part of either inside or outside networks. For NAT to work, it generally requires more than one physical interface, since a packet must be forwarded from a NAT inside interface to a NAT outside interface or vice-versa for address translation to take place. There may be situations where only a single physical interface is used to connect multiple logical networks using secondary addresses, and also use NAT to translate the addresses in packets entering and leaving through the same physical interface.
Such a configuration, known as "NAT on a stick," is possible through the use of a loopback interface and Policy Based Routing (PBR) technique on the router. For more information about this topic with examples, refer to Network Address Translation on a Stick.
Pre-sales engineering Question: If and which IE000 series switches support SFP Transceiver monitoring? And associated SNMP MIBs for DOM information? I've got projects currently using Rockwell "Stratix" OEM brand equivalen...
Hello, On a brand new catalyst 9407 chassis running the IOS XE version 16.12.02 I have the following message: "May 25 14:23:16.217: %IOMD-2-POE_RW_FAIL: Chassis 1 R0/0: iomd: POE read/write to HW failed on Slot 6 Subslot 0.POE functionality will...
I have a SPA122. I'd like to modify the SPA122's web interface address from 192.168.15.1 to 192.168.1.5. I was under the impression that by connecting my PC thru ethernet to the PC port on the SPA122 I could change the IP, then connect the SPA12...
This is my topology: PCMitarbeiter and PC1 are in the same VLAN (Mitarbeiter)PCMitarbeiter ip is: 220.127.116.11 and PC1 ip is 18.104.22.168 configs: MLSA: !
no service timestamps log datetime msec
no service timestam...
Hello everyone, We have a cisco prime infrastructure 3.7 with HA, virtually hosted in our environment. Last week our Primary-Prime-server got crashed and currently Secondary-prime-server is up and running as active one. Yesterday we try to rebuild th...