Access-list on using DNS domain name instead of IP?
Hi, can you help me with this one?
Imagine I need to let a couple of Symantec security appliances (internal network) communicate on port 443 TCP to domains listed below. In my experience, I should do this based on the respective domain names (as shown below, since IP addresses change without warning).
Can someone tell me what should I consider in order to do access-lists based on domain name? Is the below correct:
Re: Access-list on using DNS domain name instead of IP?
First off I assumed you had a PIX, so the name command is incorrect! In IOS you can create an IP Host, but I don't think you can use that name in an ACL. I agree that it should be able to do it, but for some reason Cisco doesn't think its important. In a PIX if you tray and use the same twice it kicks back an error saying the name is laready in use. On IOS, it replaces the first one with the second one (no error).
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