ZyXEL XGS-4728F User Guide - Page 337
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Chapter 37 OSPF Table 117 IP Application > OSPF Configuration: Activating and General Settings LABEL DESCRIPTION Distance Enter a number from 10 to 255 to specify the administrative distance that is assigned to routes learned by OSPF. The lower the administrative distance value is, the more preferable the routing protocol is. See Section 36.1.1 on page 327 for more information about administrative distance. Apply Cancel Note: You cannot set two routing protocols to have the same administrative distance. Click Apply to save your changes to the Switch's run-time memory. The Switch loses these changes if it is turned off or loses power, so use the Save link on the top navigation panel to save your changes to the non-volatile memory when you are done configuring. Click Cancel to begin configuring this screen afresh. 37.4 Configure OSPF Areas To ensure that the Switch receives only routing information from a trusted layer-3 devices, activate authentication. The OSPF supports three levels of authentication: • None - no authentication is used. • Simple - authenticate link state updates using an 8 printable ASCII character password. • MD5 - authenticate link state updates using a 16 printable ASCII character password. XGS-4526/4528F/4728F User's Guide 337
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