From: Brian Dennis (bdennis@internetworkexpert.com)
Date: Sat Sep 24 2005 - 21:02:44 GMT-3
Dustin,
How is there a hello interval mismatch?
R2:
interface Serial0.2 point-to-point
ip address 192.168.5.2 255.255.255.0
ip ospf hello-interval 30
frame-relay interface-dlci 205
R5:
interface Serial0
ip address 192.168.5.5 255.255.255.0
encapsulation frame-relay
frame-relay map ip 192.168.5.2 502 broadcast
no frame-relay inverse-arp
frame-relay lmi-type cisco
R2's OSPF network type is point-to-point which means its default hello interval is 10 seconds. R5's OSPF network type is non-broadcast which means its hello interval is 30 seconds. Since R2's default hello interval has been change to 30, there isn't a hello timer mismatch.
Here is a tech tip on this exact problem:
Why Are Some OSPF Routes in the Database but Not in the Routing Table?
Reason 1: Network Type Mismatch
http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a008009481a.shtml#r1
HTH,
Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
bdennis@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987
Direct: 775-745-6404 (Outside the US and Canada)
________________________________________
From: dusth@comcast.net [mailto:dusth@comcast.net]
Sent: Saturday, September 24, 2005 3:58 PM
To: alissitz@cisco.com; Schulz, Dave; Brian Dennis; ccielab@groupstudy.com
Subject: RE: OSPF redistribute connected issue
Problem is hello-internal mismatch. Then, what if change the hello and dead interval on r5 to match with hello interval on r2. Should ospf exchange routing table then?
Regards,Dustin
-------------- Original message --------------
> debug ip ospf adj - will show any problems with advances
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> dusth@comcast.net
> Sent: Saturday, September 24, 2005 6:39 PM
> To: Schulz, Dave; Brian Dennis ; ccielab@groupstudy.com
> Subject: RE: OSPF redistribute connected issue
>
> What if both r2 and r5 are using physical frame-relay but r2 is
> configured with ip ospf p2p and r5 is configure with ip os p2m? Since
> they are both physciall frame, should they are adjacence and exchange
> routing?
>
> Regards, Dustin
>
> -------------- Original message --------------
>
> > Interesting! I thought that if you adjusted the hello/dead timers to
> > agree at both ends of the circuit....that the adjacency would come up
> > and everyone would be happy. Also, I did a debug ip ospf events at
> > both R2 and R5 and nothing appeared out of the ordinary. What is best
> > way to debug this if you run into such an issue (I like to create
> > these "networks that should never happen" labesque type scenarios)?
> >
> > Dave
> >
> > -----Original Message-----
> > From: Brian Dennis
> > To: Schulz, Dave; ccielab@groupstudy.com
> > Sent: 9/24/2005 3:32 PM
> > Subject: RE: OSPF redistribute connected issue
> >
> > Dave,
> > You have an OSPF network type mismatch. OSPF network types that do not
>
> > use a DR (point-to-point and point-to-multipoint) can not neighbor
> > with OSPF network types that do use a DR (broadcast and
> > non-broadcast). They will become "adjacent" with each other if you
> > adjust the hello timers but they won't become true neighbors.
> >
> > HTH,
> >
> > Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
> > bdennis@internetworkexpert.com
> >
> > Internetwork Expert, Inc.
> > http://www.InternetworkExpert.com
> > Toll Free: 877-224-8987
> > Direct: 775-745-6404 (Outside the US and Canada)
> >
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of
> > Schulz, Dave
> > Sent: Saturday, September 24, 2005 12:09 PM
> > To: ccielab@groupstudy.com
> > Subject: OSPF redistribute connected issue
> >
> > Group -
> >
> > Here is an issue that I am having under OSPF....
> >
> > R2 is connected R5 through a pt-pt frame. R2 is the ABR, which has the
>
> > area 0
> > connection. The connection to R5 and R5 in in area 1. I have a number
> > of
> > loopbacks set up on R5 (50.50.x.0)....and, when I redistribute into
> > OSPF, I
> > can see them at R2 in the ospf database, but they are not showing up
> in
> > the
> > routing table. And, because of this, the loopbacks are not reachable
> at
> > the
> > spokes (other links out on the network connected to R2). Any thoughts
> > on this
> > one?
> >
> >
> > R2 config.....
> >
> > interface Serial0
> > no ip address
> > encapsulation frame-relay
> > no frame-relay inverse-arp
> > frame-relay lmi-type cisco
> > !
> > interface Serial0.1 multipoint
> > ip address 192.168.3.2 255.255.255.0
> > ip ospf priority 255
> > frame-relay map ip 192.168.3.2 203
> > frame-relay map ip 192.168.3.3 203 broadcast
> > frame-relay map ip 192.168.3.4 204 broadcast
> > no frame-relay inverse-arp
> > !
> > interface Serial0.2 point-to-point
> > ip address 192.168.5.2 255.255.255.0
> > ip ospf hello-interval 30
> > frame-relay interface-dlci 205
> > !
> > router ospf 1
> > log-adjacency-changes
> > network 192.168.3.0 0.0.0.255 area 0
> > network 192.168.5.0 0.0.0.255 area 1
> > neighbor 192.168.3.4
> > neighbor 192.168.3.3
> >
> >
> > On R5 the config is.....
> >
> > interface Loopback0
> > ip address 50.50.50.5 255.255.255.0
> > !
> > interface Loopback10
> > ip address 50.50.60.5 255.255.255.0
> > !
> > interface Loopback11
> > ip address 50.50.61.5 255.255.255.0
> > !
> > interface Loopback12
> > ip address 50.50.62.5 255.255.255.0
> > !
> > interface Loopback13
> > ip address 50.50.63.5 255.255.255.0
> > !
> > interface Loopback14
> > ip address 50.50.64.5 255.255.255.0
> > !
> > interface Loopback15
> > ip address 50.50.65.5 255.255.255.0
> > !
> > interface Loopback16
> > ip address 50.50.66.5 255.255.255.0
> > !
> > interface Loopback17
> > ip address 50.50.67.5 255.255.255.0
> > !
> > interface Loopback18
> > ip address 50.50.68.5 255.255.255.0
> > !
> > interface Serial0
> > ip address 192.168.5.5 255.255.255.0
> > encapsulation frame-relay
> > frame-relay map ip 192.168.5.2 502 broadcast
> > no frame-relay inverse-arp
> > frame-relay lmi-type cisco
> > !
> > router ospf 1
> > router-id 50.50.50.5
> > log-adjacency-changes
> > redistribute connected metric 20 metric-type 1 subnets
> > network 192.168.5.0 0.0.0.255 area 1
> >
> > Dave
> >
> >
> _______________________________________________________________________
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> >
> >
> _______________________________________________________________________
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>
> _______________________________________________________________________
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