Client1 is configured to join multicast destined for group 226.0.0.1 and sent from Server1 Instead of PIM-Dense (flood and prune) we use PIM-Sparse to build the forwarding path from the server to the client...
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I’am not a good gateway… set redirection!
In this lab PC1 tries to communicate with PC2 R1, R2 and R3 are in the same network Static routing is configured on routers R1, R2 and R3 such as At R2, PC-2 network...
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Multicast: Hold ASM for a moment, let’s do SSM!… Part 4
IGMPv3 (RFC 4607) allows the receivers to specify the source they wish in additiont the multicast group trafic By default we use the 232.0.0.0/8 range for SSM In our lab setup We configure Client1...
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Is it sufficient split-horizon rule to prevent RIP loops?
Per the split-horizon rule, don’t send an update back on the interface it was received on What is the challenge here? In addition to bandwidth usage and system resources consumption, Split horizon helps prevent...
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RIP: do not split it then… and unleach the power of the “network” command
In RIP domain routers R1 and R2 exchange information about loopback 0 and 1 networks Router RIP command “network 0.0.0.0” hints routers to add all ip enabled interfaces to the update list and include...
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Multicast routing: From the source… Part 3
We build on our discussion from the previous blogs The test topolgy How R3 handles Server2 source multicast trafic? R3 is the only UP router It’s mroute table show a correct source and incoming...
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Static routing metric
Both R1 and R3 advertise 13.13.13.13/32 network into RIP domain R3 is configured to offset all network updates via interface fa1/0 by 10 R2 receives R3 route with a metric of 11 hops A...
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5 Minutes
Multicast routing: PIM dense… Part 2
Server2 is 3 hops away from its receivers R3 receives the multicast and forwards it to its forwarding list interfaces At R2 At R2 the outgoing interface list includes also the incoming interface The...
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Adertised RIP learnt routes
In the topology Router R3 receives 1.1.1.1/32 route information from R2 This route gets next into the routing table But what if R2 installed another protocol or source same route (same subnet and mask)...
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RIP flush time
By default RIP sends updates each 30 seconds In this lab we change the value of the invalid timer to 90 seconds What happens if we filter RIP updates R2 sends over fa0/0 link?...
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RIP maximum equal cost paths feature
In this lab, we check how maximum equal paths feature works in RIP In this lab R2 advertises 2.2.2.2/32 subnetwork to R1 via RIP. R1 processed three equal paths through interfaces fa0/0, fa1/0 and...
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Routing from scratch… Part 1
The person in A wants to join its colleagues in location B through the network topology described in the below figure. This person needs to go back home at the evening! ” This person...
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