3 votes
Accepted

Multiaccess link shows two Designated Routers in Area 0

You actually have more than one broadcast link. A DR is per broadcast (or non-broadcast) link, not per area. You can have areas with no DRs, but broadcast links will have a DR (assuming multicast, not ...
Ron Maupin's user avatar
  • 99.6k
3 votes
Accepted

How to measure the convergence time of OSPF in Quagga?

You can use a common non-Quagga-specific recipe: Fire a continuous ping test over the main path established by OSPF. Disrupt the main path. Wait until OSPF restores connectivity for ping. Record how ...
Everton's user avatar
  • 1,636
2 votes
Accepted

Confused about route-map

Like access lists, route-maps have an implicit "deny all" at the end. Stanza 90 denies packets it matches, and then everything else is denied by the implicit deny. You need a "permit all" statement ...
Ron Trunk's user avatar
  • 67.5k
2 votes
Accepted

Quagga OSPF DR/BDR Mismatch: Losing Routes

I was asked to provide an answer to this question, to close it out. I may be a little fuzzy on the details as we are approaching 3 years ago now. Essentially we worked around this issue. We wound up ...
Travis Hegner's user avatar
2 votes

BGP quagga not deleting old routes

I am having the same issue using Quagga (version 1.2.2). I had the --retain flag on the daemon, removed it from my start up script and restarted quagga, but it didn't fix the issue. Only manually ...
Rudy Chillamos's user avatar
2 votes
Accepted

Is there any way to display the best bgp route in Quagga?

It looks like does not have such command. "show ip bgp", "show ip bgp neighbors 10.0.0.2 advertised-routes" able to find ">" for bestpath. or follow command is work. vtysh -c 'show ip bgp' | grep -...
Roger Sanghee Gold's user avatar
2 votes

Per Network Namespace Quagga OSPF

You can run anything in a network namespace with "ip netns exec". So it should just be a matter of writing some scripts to launch your routing daemon in different network namespaces and with ...
Peter Green's user avatar
  • 13.3k
2 votes

Quagga router advertisement messages are wrong after an address change

Simply assigning a new IPv6 address to an interface does not remove the old IPv6 address. IPv6 allows you to assign multiple addresses to one interface, including addresses from different networks. ...
Ron Maupin's user avatar
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1 vote
Accepted

Connecting eBGP and iBGP routers in Quagga

Your question is very confusing, and I think it is because you do not really understand some things. To get on the same page: Every router interface, including loopback interfaces, has its own ...
Ron Maupin's user avatar
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1 vote
Accepted

Quagga - Configure 3 routers using OSPF

In the top image, it appears that the traceroute is actually making it all the way from one host to the other host. I think you are concerned that the intermediate hops are not represented. ...
Ron Maupin's user avatar
  • 99.6k
1 vote
Accepted

Running quagga on a redundant board? (how to force ospfd to not send HELLOs?)

There's really no need to change the IP address of the device, as long as your devices support VRRP (since it is linux based, it does) Give to both devices an address within 172.16.1.0/24 (like .2 ...
JFL's user avatar
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1 vote
Accepted

How do you define cost in Quagga for BGP and RIP?

So there's a decision tree that just about any router goes through when determining routes. The respective routing protocols (RIP, BGP, OSPF, IS-IS, static) run their own algorithms to determine the ...
rnxrx's user avatar
  • 6,114
1 vote

How do you define cost in Quagga for BGP and RIP?

How do you define cost in Quagga for BGP and RIP? Simply put, you don't. You are comparing apples to oranges. OSPF, a link-state routing protocol, uses cost, but neither RIP nor BGP use cost. RIP is ...
Ron Maupin's user avatar
  • 99.6k
1 vote
Accepted

Change RIP distance in quagga

There are a couple of things going on here: 1.) The maximum metric/hop count in RIP (v1 and v2) is 15. Trying to set a metric of 100 isn't going to get you very far in general. 2.) The "distance" ...
rnxrx's user avatar
  • 6,114
1 vote

OSPF (Quagga) complex network setup query

OSPF could work here. I'm not familiar with Quagga, but in a standard setup you could put every interface in the same area and use import policies on Sys1 and Sys2 to prevent them from learning each-...
Matt E's user avatar
  • 31
1 vote
Accepted

Preferred anycast paths for DNS with Quagga BGP

The solution is to have one route-map directly on the BGP network route. This is not documented in Quagga docs (July 2016) but works. network 10.100.0.1/32 route-map localpref150 Complete ...
Niklas Hagman's user avatar
1 vote

Preferred anycast paths for DNS with Quagga BGP

What you have described is not the way anycast works. For anycast, you have all the DNS servers configured with the same address (usually on the loopback interface), they then participate in the ...
MAP's user avatar
  • 356
1 vote
Accepted

Advertise Non-Transitive Routes in Quagga

No, you cannot change the flag. Attribute MP_REACH_NLRI is defined to be Optional Non-Transitive in RFC4760. What kind of routes you are trying to advertise? Update Neighbor to 192.168.20.201 in ...
Pue-Tsuâ's user avatar
  • 666
1 vote

Quagga eBGP route advertisments are not propagated into iBGP session

The network statements in your BGP router configuration: network 1.1.1.0 network 1.1.2.0 do not match the actual network addresses, which range from /26 to /32. BGP will not advertise networks which ...
Ron Maupin's user avatar
  • 99.6k

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