2N TELEKOMUNIKACE a.s., www.2n.cz 47/152Change the user name and password during your gatewayfirstconfiguration to avoid unauthorised access to your gatewayconfiguration! Refer to page for details!TipIn the event of data loss or configuration interface unavailability,perform the factory reset to retrieve the data. Doing so, however, youreset all the default values in your gateway. Refer to , p. forSubs. 4.4details.MAC AddressThe BRI gateway has a unique, factory-set MAC (Media Access Control) address. Referto the rear side label of your device or the gateway web interface for the MACaddress.The MAC address can be user-changed.TipIf you use DHCP, you are advised to set permanent assignment of oneand the same IPv4 address to the defined MAC address to avoidunexpected change of the gateway IPv4 address and subsequent VoIP-SIP setting errors.
