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Cisco ACL - Match on DNS names

On a Cisco IOS router (ver 12.x) is there some way to make certain ACL entries match on DNS names in addition to the host IP address ?
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Yes but you have to make sure you have an IP NAME-SERVER configured, then you can use a standard statement i.e.

permit tcp any host mail.whatever.com eq smtp

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Commented:
Perfect, thanks !

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