My client has been allocated 2 Public IP Addresses from the ISP, but we always just used one of them because there was never a need to use the second. Well, we now have a situation, where we need to port forward port 5060 to two different local IP addresses. The obvious solution would be to use the second public IP Address and port forward it to 5060 and then call it a day. I just don't understand how that works on a cisco router. Does the router know about all of the Public IP's because when I added the main public IP Address on the WAN port, I put the subnet mask in that accounts for the 2 IP's? How do I make the Router aware of my second Public IP Address?
ip nat inside source static tcp 192.168.5.11 5060 <unused public IP> 5060
In terms of how it works with the second public IP the ISP has a router with an IP from the same public IP range. So when traffic gets to ISP router inbound from the internet the ISP router requests the mac address of the public IP.
Your router performs proxy arp for that public IP so it responds with the mac address of it's outside interface.
This means that traffic for that IP is sent to your router.
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Cisco’s software-defined wide area network (SD-WAN) solution allows user to quickly and seamlessly establish an overlay fabric to connect an enterprise’s data centers, branch and campus locations, as well as colocation facilities in order to imp...
1. Log into CLI of DNAC:
ssh maglev@< DNAC appliance IP> -p 2222
2. Run this curl command to get token to get member id:
curl -X POST -u admin:<admin user password> -H -V https://<CLUSTER-IP>/api/system/v1/identitymgmt/token
Enterprise Switching Business Unit is glad to announce Beta release 16.12.2 for all Catalyst 9200/9300/9400/9500/9600 and Catalyst 3650/3850 Platforms. This release is made available to allow users to test, evaluate and share fee...
Purpose of the document
This document describes the general recommendations or best practices when designing and deploying the Cisco SD-Access technology. The document assumes that the reader has a general overview of Cisco's SD-Access for Distributed C...