ip ospf area virtual-link
      message-digest-key (for a VRF)
   
   
      Configure a Message Digest 5 algorithm (MD5) key for the virtual interface.
    
      Syntax
         
         
            - 
               
                  default ip ospf area
                     virtual-link message-digest-key {A.B.C.D} {A.B.C.D} <1-255> 
               
             
            - 
               
                  ip ospf area virtual-link
                     message-digest-key {A.B.C.D} {A.B.C.D} <1-255> md5-key WORD<1-16>
                  
               
             
            - 
               
                  no ip ospf area
                     virtual-link message-digest-key {A.B.C.D} {A.B.C.D} <1-255>
               
             
         
      
      Command Parameters
         
         
            
               - <1-255> md5-key WORD<1-16>
 
               - <A.B.C.D> is the virtual
                  interface id. <1-255> is the ID for the message digest key. WORD<0-16>
                  is an alphanumeric password in the range of 0 to 16 characters.
 
            
            
               - <A.B.C.D> <A.B.C.D>
 
               - Adds a Message Digest 5 algorithm
                  (MD5) key to the interface. At most, you can configure two MD5 keys to an
                  interface. <A.B.C.D> identifies an OSPF area.
 
            
         
      
      
      Command Mode
         
         VRF Router Configuration