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Questions tagged [ospf]

OSPF (Open Shortest Path First) is a link state routing protocol for interior routing within single autonomous system (AS).

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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 created with the redistribution command? EDIT: I am…
THE DOCTOR
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EIGRP Neighbor State

I understand that OSPF has states that describe the status of a neighbor (e.g. Init and Full). Does EIGRP also have similar information? I'm programmatically trying to get the status of an EIGRP neighbor using SNMP OIDs. Is there anything in the MIB…
BJ Dela Cruz
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OSPF: how to advertise the subnet of an OpenVPN server?

I have successfully configured OSPF on all of our HP ProCurve 7102 routers, and most of our internal Linux routers. Routes get advertised, and all is peachy. Except for the routes into the subnets handled by various OpenVPN services and other VPN…
wolfgangsz
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OSPF: quagga and HP ProCurve not talking

This question is related to a previous one on OSPF routing. Based on the advice give to the previous question, I have now made myself a network diagram, identified the backbone area and all other areas and started configuring OSPF on the various…
wolfgangsz
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Redistribute OSPFv3 static route to RIPng

I have a IPv6 static route on a Cisco 2600 that is being redistributed to other Routers in the same OSPFv3 area. One of the routers (not the one with the static route) is also a participant in a RIPng group. The OSPF routes are set to redistribute…
newmanth
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How to configure CentOS firewalld to allow quagga ospf messages

I have a 4 node spine leaf topology with tow host connected. One host each connected to the leaves. Each host is also hosting quagga and capable of operating as a router. On the (CentOS 7) host OSPF will not converge until I disable firewalld. The…
dcrearer
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How can I limit OSPF route visibility between different areas?

I have a fairly simple network setup as seen in the attached image. The network is spread across two more or less similar data centers which are connected via a static OpenVPN tunnel. Both the VPN servers and the gateways are running BIRD OSPF,…
Teemu Karimerto
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Centos 7.3 Quagga (ospf) configuration changes after reboot

I have configured ospf as shown below: cat /etc/quagga/ospfd.conf ! ! Zebra configuration saved from vty ! 2017/05/31 10:13:20 ! ... ... ... ! interface foo1 description Tunnel foo1 ip ospf cost 250 ip ospf dead-interval minimal…
Vini7
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OSPF, do the end device networks need to be advertised when setting it up?

Giving this topology as an example, I am working on an exercise for university and up so far I have implemented inter vlan routing, spanning tree, link aggregation and DHCP. For the last part I need to implement OSPF and my question is: Once…
JGuerra
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In Cisco IOS, how can I view OSPF network areas?

Suppose I configure OSPF using the following commands in Cisco's IOS: router ospf 201 network 10.0.0.0 0.255.255.255 area 10.0.0.0 network 192.168.0.0 0.0.255.255 area 0 How can I subsequently list the network areas that were defined? I.e. suppose…
Jim Marquardson
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Routing with Quagga and OpenVPN

We plan to connect servers in two racks with each other. Let's assume we have 5 servers in each rack, connected with a fast switch. Each server has a 1 GBit Internet uplink. The following might be very stupid, but networking is not my area of…
lbenedix
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Quagga OSPF not updating

TL;DR: routing daemon not updating tables. Help! Consider two different Linux vm's configured for routing, R1 and R2, which are directly connected on 10.0.0.0/24. Each has other networks on their other interfaces. They probably want to advertise the…
user349251
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Cannot ping an ip of router

my issue is: r1 ping r4(em0) will lost the first packet r2 ping r3(em0) will lost the first packet too r3 cannot ping r2(eth0) r4 cannot ping r1(eth0) there are 4 routers, and connected with openvpn(tun). r1/r2 is ubuntu, and running in AWS…
Fisher Wei
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internet access for system over multiple hops of ipsec using GRE and OSPF

I have the following setup: linux client @ 172.16.10.68 linux gateway @ 172.16.10.69, ipsec tunnel to aws box #1, gre tunnel 10.254.0.0/30 aws box #1, ipsec tunnel from linux gw, ipsec tunnel to aws box #2, gre tunnel 1 10.254.0.0/30 and second gre…
user1608061
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Routing Issue - can't ping gateway from other routers in full mesh

I am setting up a new network. I have 4 routers in a full mesh. Edge1, Edge2, Client1, Client2. This are Mikrotik Cloud Core Routers (not that it matters). They are set up with OSPF (distributing connected and static routes) and MPLS, and…
Dennett Ingram
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