https://community.cisco.com/t5/network-security/url-rule-when-ip-changes/m-p/4022760#M15289 <P>Hi,</P><P>A customer of mine is facing a problem with his firewall. He create a URL rule for some cloud applications, but when the cloud IP chages, the applications stop working.</P><P>I'd like to know if the Fire Power has the capability to create a URL rule that can keep the applications working even when the IP cloud changes</P> Fri, 21 Feb 2020 17:53:26 GMT Diego Leitao 2020-02-21T17:53:26Z https://community.cisco.com/t5/network-security/url-rule-when-ip-changes/m-p/4022760#M15289 <P>Hi,</P><P>A customer of mine is facing a problem with his firewall. He create a URL rule for some cloud applications, but when the cloud IP chages, the applications stop working.</P><P>I'd like to know if the Fire Power has the capability to create a URL rule that can keep the applications working even when the IP cloud changes</P> Fri, 21 Feb 2020 17:53:26 GMT https://community.cisco.com/t5/network-security/url-rule-when-ip-changes/m-p/4022760#M15289 Diego Leitao 2020-02-21T17:53:26Z https://community.cisco.com/t5/network-security/url-rule-when-ip-changes/m-p/4022828#M15290 <P>This is a challenge with URL rules and could-based services with shifting IP addresses.</P> <P>The best you can do is minimize the potential impact by:</P> <P>a. making sure your FMC uses the same DNS server(s) as your clients</P> <P>b. setting your DNS timeout lower to force lookups to happen more frequently and not hold cached entries as long.</P> Mon, 03 Feb 2020 16:41:28 GMT https://community.cisco.com/t5/network-security/url-rule-when-ip-changes/m-p/4022828#M15290 Marvin Rhoads 2020-02-03T16:41:28Z