OSPF: non-broadcast multaccess network (broadcast type)

OSPF using broadcast network type over NBMA 1. Uses multicast (224.0.0.5, AllSPFRouter multicast) to automatically discover neighbours, no need to use neighbor command for OSPF router to send hello via unicast. 2. Cisco mode. (non RFC2328-compliant) 3. DR and BDR will be elected. 4. Typically full mesh or partial mesh topology. 5. Hello is sent … Continue reading OSPF: non-broadcast multaccess network (broadcast type)

For Testing only: Broadcast to multicast translation and multicast routing using MLS

Warning: Do not use these configurations as it is in actual deployment. This configuration is setup to test if the MC is forwarded out to the intended destination without any mc receiving application running. For this configuration we will use the default vlan 1, for the actual application you can use any vlan that you … Continue reading For Testing only: Broadcast to multicast translation and multicast routing using MLS

How to convert from broadcast to multicast and vice versa using Cisco router.

Scenario: ABC corporation and XYZ company has merged into one huge organization known as EFG. Your employer company - MTA has been engaged to come out a solution to merge the IT departments of both companies without changing the existing corporate IP addresses and existing softwares. Two departments reside on different network, so in order … Continue reading How to convert from broadcast to multicast and vice versa using Cisco router.

Flawed configuration: Broadcast to Multicast and Multicast to broadcast translation

WARNING: THE BELOW CONFIGURATION HAS FLAWS. IP PIM SPARSE-MODE NEEDS A RENDEZVOUS POINT WHICH IS NOT DEFINED HENCE MULTICAST ROUTING IS NOT POSSIBLE. I WILL READ UP MORE ABOUT PIM TO UNDERSTAND BETTER. THIS POST IS RESERVED FOR ARCHIVE. I just found out that Multicast is a hated subject by many people, in my opinion … Continue reading Flawed configuration: Broadcast to Multicast and Multicast to broadcast translation