From: Roberto Fernandez (rofernandez@us.telefonica.com)
Date: Fri Jul 07 2006 - 17:50:51 ART
Jim,
Well, unfortunatelly I don't have that config anymore, was made on a
rented rack. But what I remember is that even when it was a multipoint
environment, multicast OSPF was not in use, because of the use of
neighbor command on the HUB, so this one would send separate unicast
updates. Maybe that's the difference with you scenario but I remember it
working correctly.
Best regards,
Roberto
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
firstname jim
Sent: Friday, July 07, 2006 12:53 PM
To: Roberto Fernandez
Cc: Sami; ccielab
Subject: Re: OSPF
Roberto, Could you post your configuration and show output? I tried on
on
a physical and a multipoint subnet interface (frame-relay), it doesn't
work. Whichever was that last key (youngest) created on the interface,
is
the one ospf used in the hello packets to all its neighbors. I just
couldn't make it to use different key to different neighbors, am I
missing
something? or mis-read the requirement.
A question for IPExpert workbootk users:
This showed up in IPExpert's workbook lab36, ospf section. And the
solution
looks similar to the config posted below, only the hub was using a
"multipoint subinterface" the spokes are the physical frame interface.
Was
it verified in a lab?
You help is highly appreciated.
On 7/5/06, Roberto Fernandez <rofernandez@us.telefonica.com> wrote:
>
> Sammy,
>
> I've tried this solution and it works, (not your configuration but the
> same scenario) the concept is right, just check the configurations
> slowly or delete everything and do it again. Try the following:
>
> Instead of using "ip ospf authentication message-digest" on the
> interfaces, use "area 135 authetication message digest" only on all
> three routers.
>
> Best Regards,
> Roberto
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> Sami
> Sent: Tuesday, July 04, 2006 6:02 AM
> To: ccielab
> Subject: OSPF
>
> Group,
>
> task say use different key for spokes , R3 is hub and have two OSPF
key
> ,
> key 1 for R3 and key 2 for R5 . R5 is OK but R1 adjaceny is not coming
> up
>
> *Jul 4 09:59:23.411: OSPF: Send with youngest Key 1
> R1#
>
> R1#
> *Jul 4 09:59:37.395: OSPF: Rcv pkt from 190.1.135.3, Serial0/0/0 :
> Mismatch
> Authentication Key - No message digest key 2 on interface
>
> Hub
>
> R3
> router ospf 1
> router-id 150.1.3.3
> log-adjacency-changes
> area 135 authentication message-digest
> network 190.1.34.3 0.0.0.0 area 34
> network 190.1.135.3 0.0.0.0 area 135
> neighbor 190.1.135.5
> neighbor 190.1.135.1
> interface Serial0/0/0
> ip address 190.1.135.3 255.255.255.0
> encapsulation frame-relay
> ip ospf authentication message-digest
> ip ospf message-digest-key 1 md5 CISCO13
> ip ospf message-digest-key 2 md5 CISCO35
>
> Spokes
> R1
>
> interface Serial0/0/0
> ip address 190.1.135.1 255.255.255.0
> encapsulation frame-relay
> ip ospf authentication message-digest
> ip ospf message-digest-key 1 md5 CISCO13
> ip ospf network point-to-multipoint non-broadcast
>
> R5
>
> interface Serial0/0/0
> ip address 190.1.135.5 255.255.255.0
> encapsulation frame-relay
> ip ospf authentication message-digest
> ip ospf message-digest-key 2 md5 CISCO35
> ip ospf network point-to-multipoint non-broadcast
>
>
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