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2898 Views 7 Replies Latest reply: May 6, 2012 8:45 PM by YapChinHoong RSS

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When OSPF uses Multicast or Unicast after two-way ???

May 6, 2012 5:32 AM

Aman 93 posts since
Oct 21, 2011



I have an query, that when OSPF uses multicast or unicast address after two-way state??

Bcz I just setup an topology, attached below...


& after saw the O/P of wireshark my head is like going to burst...


As u can see in O/P of Wireshark (both interfaces of R1). OSPF uses unicast messages for DBD exchange b/w R1 & R4 (via. Ethernat link). & uses multicast messages for same b/w R1 & R5 (via Serial link).


Need suggestion......????




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