0
votes
0answers
26 views

Packet captures of OSPFv2 with HMAC-SHA1 (RFC5709)

I'm looking to get my hands on packet captures showing a hello packet from OSPFv2 configured to use HMAC-SHA1 for authentication, or to find software that supports such a mode that I could use to ...
0
votes
0answers
81 views

How to correctly summarise routes in an OSPF multi-hub-and-spoke scenario?

I am looking at using OSPF/Quagga to provide high availability between a backbone and multiple remote locations (via GRE). I'm unable to get route summarisation working (forgive me if not the correct ...
1
vote
2answers
109 views

Load balancing across uneven links (Cisco\OSPF)

I know that OSPF will load balance across equal cost paths such as: R1 ------------------ R3 | 100mbit | | | | 1gbit| |100mbit | | ...
0
votes
1answer
91 views

Static into OSPF Redistribution

I am trying to create static routes which are redistributed as E1 Type 5 External OSPF LSAs. If I check the routing tables on my other connected routers, these redistributed routes show up properly. ...
0
votes
1answer
108 views

Importance of loopback ip address [closed]

Why do we configure loopback IP address in router RIP and router OSPF configuration ? What is the significance of configuring it ?
0
votes
1answer
1k views

Prevent Quagga from a certain subnet advertising

I have an Ubuntu 12.10 workstation with the following interfaces: eth0 : 10.11.1.15/24 lo:1 : 10.90.50.50/32 lo:2 : 10.1.100.100/32 tap0 : 10.5.200.200/24 As you can see, all IPs fit in 10.0.0.0/8 ...
0
votes
2answers
205 views

replacing 3 Cisco Catalyst 4500

Our network supplier recommends replacing our 3 cisco catalyst 4500's because they are EOL and dont speak OSPF (which we really want) Its not my area of expertise so I cant say for sure if we really ...
2
votes
3answers
1k views

Static-to-OSPF Route Redistribution

Is it possible to use redistribution of static-to-ospf in order to create an external OSPF route other than the type E2? Does this process only create a type 5 LSA and can any other LSA types be ...
3
votes
2answers
337 views

How any routing protocol packet reaches(flows of operations) from NIC card (physical layer) to any Routing (OSPF/RIP/BGP) daemon?

The problem is rearding the routing protocol packet flow in any linux/unix device where multiple routing protocol daemons are running. How any routing protocol packet reaches(flows of operations) ...
0
votes
1answer
70 views

How OSPF Support Classless Domains

Link state Packet in OSPF contains : 1.Identification Number of sender. 2.Sequence Number. 3.Network Number. 4.Cost or metric. 5.Next Hop. i am not able to understand how OSPF support variable ...
-2
votes
1answer
326 views

when choose OSPF and when RIP [closed]

A question asked in Cisco Interview : Which routing protocol will you use if you have 50 nodes in each area? Choose between OSPF , RIP and explain. Edit: I worked with the above Question and came up ...
1
vote
1answer
411 views

Unequal Cost Load Balancing via MPLS TE

Given the following network, with all sites' network routing tables built via OSPF: Site_A | Site_A_router | \ | Intermediate_site_C_router -- Other_sites | ...
1
vote
2answers
259 views

How do I get started with setting up OSPF?

I'm a sys admin by trade but I've been tasked with heading up a team that will be implementing OSPF between the different offices in our company. I don't have any experience with OSPF so I'm not sure ...
3
votes
5answers
25k views

What is the difference between BGP and OSPF?

I want to setup a dynamic routing network´╝î I want to know, What is the difference between BGP and OSPF ? Does both two need to be used together commonly ?
0
votes
1answer
453 views

How does ospf control flooding?

What method is used by ospf protocol to prevent looping of flooded packets for link state advertisements? The packet header does not contain any timestamp. How do the routers recognize that it is the ...