Auxiliary Port
Some accessories accept an abetting (aux) anchorage accessible for alien administering via a dialup modem connection. In best cases, aux anchorage should be disabled by application the no exec command beneath band aux 0 .
A modem should be affiliated to the aux anchorage with no alternatives for advancement or alien admission methods to the accessory alone actually necessary. Through a simple war-dialing technique, an burglar can acquisition a rogue modem; appropriately it is all-important to
apply affidavit for admission ascendancy to the aux port. As discussed earlier, all admission to the accessory (including aux port)
must crave affidavit (using alone user accounts) for access, either application bounded affidavit or via AAA servers TACACS+ or RADIUS.
For added security, IOS callback appearance can be implemented. Refer to Cisco affidavit for advice about connecting
modems on aux ports and configuring callback features.