What does the "outer cloud" see as the IP address of a mail server refernced to by NAT?
The serial0 address for my router is xxx.xxx.xxx.30. I have a mail and web server set up behind the router with an address of xxx.xxx.xxx.26. My URL resolves to the .26 address. When mail is sent from the mail server to the internet, the IP address for the outgoing mail is labeled with the .30 address as the sending IP address. Will this cause problems when sending to mail servers that compare the sending URL (resolved to .26) to the actual sending IP address (showing as .30)? Should the outgoing mail be labeled with the .26 address as the sending IP address?
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
Im studying the 100-105 book by Odom and am currently on the topic of Port security. I purchased a used 2960 and I'm trying to follow a...
While deploying a number of 18xx/2802/3802 model access points (APs), which run AP-COS as their operating platform. It can be observed on some occasions that while many of their access points were able to join the fabric WLC withou...
I am going to design and build an LAN network under a tunnel underground with long distance between the switches.
I will have 2 Catalyst switches and 8 Industrial IE3000, and they will be connected with fiber.
For now I am planning on use Layer-2 s...