What IP address does Rip use for routing updates ?
Multicast route updates on 224.0.0.9
What IP address does EIGRP use for routing updates ?
Multicasts router updates on 224.0.0.10
What IP address does OSPF use for routing updates ?
Multicasts rout updates on 224.0.0.5
What type of routing protocol is RIPv2?
RIP v2 is a Distance Vector Protocol using hop count as a metric.
What type of routing protocol is EIGRP?
EIGRP is a Hybrid of Distance Vector and Link-State, Uses feasible successors to determine alternative routes to networks. calculations use topology table.
What type of routing protocol is OSPF?
OSPF is a SFP protocol using the Dijkstras shortest path algorithm.
What is the default update timer setting of RIPv2?
30 seconds
What is the default invalid timer setting in RIPv2?
90 seconds
What is the default Hold Down Timer setting?
180 seconds
What is the default Flush Timer setting of RIPv2?
270 seconds
Does RIPv2 support authentication?
YES
Is it true that RIPv2, EIGRP, and OSPF, are all Classless routing protocols?
YES
With OSPF what dictates the 'Router ID' ?
The highest IP Address or the loopback address if set. Can also be manually configured with ' router-id' command.
What methods address the problem of router loops and counting to infinity?
Split Horizon
Route Poisoning
Hold down timers
Triggered updates
What algorithm does RIP use?
Bellman Ford
Does RIP support IPv6?
YES RIPng only
Does RIP support VLSM and Route summarization?
YES; RIPv2 and RIPng Only
Does RIP support Authentication?
YES; MD5 RIPv2 and RIPng only
What are the OSPF Neighbor States?
Down
Init or One-Way
Two-Way
Full
To become Neighbors OSPF routers must agree on what parameters?
Area ID
Same Subnet
Authentication (if used)
Hello Interval timer
Dead Intervel timer
Area type (Stub, NSSA)
Router ID must be unique
What is the Broadcast Multi-access period timer on OSPF?
10 seconds
What is the Point-to-Point and NBMA Timer period?
30 seconds
What is the OSPF Dead timer default setting?
4 times the hello timer value
What is the Broadcast timer default for OSPF?
40 seconds
What is the default NBMA and P2P timer setting?
120 seconds
how do you change Hello and dead timers setting of OSPF
(config-if)# ip ospf hello-interval < seconds >
(config-if)# ip ospf dead-interval < seconds >
What does 'Internal' Router Mean ?
A Router with ALL interfaces residing within the same area.
What does 'Backbone' Router Mean ?
A Router that resides in the backbone area.
What is an Area Border Router?
An ABR is a Router that connects two or more areas
What is an Autonomous System Boundary Router (ASBR)?
An ASBR connects an external router domian to an OSPF routing domian.