MG6000 Series Media Gateway User’s Manual- 60 -b). DisplayIAD(8)#show stunenable stunstun server domain name:cyndi.gktel.cnstun server IP addres:0.0.0.0stun server port:3478Attention:a). Simple Traversal of UDP over NATs is a lightweight protocol that allows applications to discover thepresence and types of NATs and firewalls between them and the public Internet.b). User can specify STUN server or IP address, it is not need to specify both, if enable the STUN server,please enable the DNS server too.5.1.5 802.1x parametersa ) ConfigurationMG6008#set 802.1x->Enable 802.1x?'yes'or'no'[no]:y->802.1x user name[]:cyndi->802.1x user password[]:cyndib) DisplayMG6008#show 802.1xEnable 802.1x: YES802.1x user name: cyndi802.1x user password: CyndiAttention:a). 802.1X providing compatible authentication and authorization mechanisms for devices. 802.1X specifiesa general method for the provision of port-based network access control.b). Users should input the user name and password that the ISP will provide. If link the server failed or theuser name or the password is wrong, the IAD will retry three times, the interval will be 30 seconds, the phone willstart DHCP if the link remain failed; If the IAD link the server successfully and pass the authentication, the phonewill start the DHCP too.5.1.5.1 NAT parametersa). ConfigurationIAD(8)#set nat-server-> Is Enable NAT Server? 'yes' or 'no'[no]: yes***This Configuration work after reset!***Really want to modify?'yes' or 'no'[no]:yes