Hi all, Is there a way to dynamically add IPs derived from an FQDN to an ACL of a CISCO 6300 RTR (updating it with new IPs while retaining any old / pre-existing IPs)? Unfortunately, I'm unable to obtain an exhaustive list of IPs for this FQDN, ...
Thanks Georg - The device performing the DNS query is a managed linux server, but if it's a task that can be assumed by the 6300 RTR via TCL + EEM, that would be the preferred method. Unfortunately, I've never created / touched either (TCL/EEM), s...
I believe I have a linux command that should be able to obtain IPs dervied from the FQDN -> dig some.FQDN.com | egrep ^sip | awk '{ print $5 }' | xargs -n1 -I{} iptables -A INPUT -s {} -j ACCEPT but adding the new IPs to the current ACL without ...
Thank you very much for your time and assistance! I've never heard of anEEM scThey appear to change on a weekly/bi-weekly basis. A DNS query isperformed on the FQDN and it generally forwards 3 or 4 different IPs in theDNS response /answer which need ...
Thank you very much balaji, I managed to google this a couple of weeks ago, but noticed the post was in reference to an ASA, which my 6300 is not configured as. Since my 6300 is running IOS XE firmware 17.X , I was told a portion of the CLI syntax...
