From: Frank CCIE (frankccie@gmail.com)
Date: Sat Dec 08 2007 - 17:32:08 ART
Hi, Joseph,
This lab is NMC DOiT Lab 8 on R2.
You are right. It is software bug. I just loaded the original
configuration from NMC SHOWiT Lab 8 to my real 3640. The problem is same.
"OSPF: Neighbor command is allowed only on NBMA and point-to-multipoint
networks" showed up during reload.
Thanks
Frank
Here is show ip ospf inter f0/0.10
R2#sh ip ospf inter f0/0.10
FastEthernet0/0.10 is administratively down, line protocol is down
Internet Address 172.16.25.2/24, Area 10
Process ID 1, Router ID 172.16.102.1, Network Type NON_BROADCAST, Cost: 1
Transmit Delay is 1 sec, State DOWN, Priority 1
No designated router on this network
No backup designated router on this network
Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5
oob-resync timeout 120
R2#
On Dec 8, 2007 3:16 PM, Joseph Saad <joseph.samir.saad@gmail.com> wrote:
> post your interface and router full config please ... I'll quickly try it
> on my version of IOS and let you know if it is an issue.
>
> By the way. Which lab is this?
>
> On Dec 8, 2007 11:56 PM, Frank CCIE < frankccie@gmail.com> wrote:
>
> > HI,
> >
> > I add router-id in ospf process.
> >
> > router ospf 1
> > router-id 172.16.102.1
> > ... ...
> >
> > The symptom is still there. It did not work. Any other thought?
> >
> >
> > Thanks
> >
> > Frank
> >
> > On Dec 8, 2007 2:33 PM, srinivas pv <vsrinivas.paturi@gmail.com> wrote:
> >
> > > Hi,
> > >
> > > In the following configs, there are chances that after reloading of
> > > routers, 172,16.101.1 may not become router-id. For ex. some other
> > higher
> > > loopback interface ip address can become router id. To avoid this,
> > need to
> > > configure router-id under OSPF processes.
> > >
> > > router ospf 1
> > > log-adjacency-changes
> > > area 12 virtual-link 172.16.101.1
> > >
> > >
> > > Thanks,
> > > Srinivas
> > >
> > > On Dec 9, 2007 12:47 AM, srinivas pv < vsrinivas.paturi@gmail.com>
> > wrote:
> > >
> > > > Hi Frank,
> > > >
> > > > I think the problem is due to missing of 'router-id' under OSPF
> > process.
> > > > Try configuring it and check once.
> > > >
> > > > Thanks,
> > > > Srinivas
> > > >
> > > >
> > > > On Dec 9, 2007 12:27 AM, Frank CCIE < frankccie@gmail.com> wrote:
> > > >
> > > > > Hi, Experts,
> > > > >
> > > > > In my lab scenario, OSPF network type NON-Broadcast (NBMA) is set
> > in
> > > > > Ethernet port to fulfill the lab requirement and "neighbor"
> > statement
> > > > > is
> > > > > added in OSPF process. The configuration runs well as expected.
> > I
> > > > > save the
> > > > > config and reload.
> > > > >
> > > > > The "neighbor" statement is lost in running-config during the
> > router
> > > > > reload.
> > > > > Consequently, no neighbor is created for the NBMA netowrk. (Please
> > see
> > > > > the
> > > > > error msg in reloading below). The "neighbor" statement is still
> > in
> > > > > startup-config. Then I copy startup-conf to running-config after
> > > > > loading,
> > > > > IOS does not show any error and everything is normal.
> > > > >
> > > > > After trouble-shooting, I found "area virtual-link" causes the
> > > > > problem. If
> > > > > the "area virtual-link" is removed, the reload procedure is
> > normal.
> > > > > When
> > > > > "area virtual-link" is added, the "neighbor" statement always lost
> > due
> > > > > to
> > > > > IOS misjudgement - the network is NOT a NBMA.
> > > > >
> > > > > I do not know it is my configuration problem, or a race condition
> > > > > during the
> > > > > load? The router is 3640 and IOS version is 12.4. Could you
> > shine a
> > > > > light?
> > > > >
> > > > >
> > > > > Thank you very much.
> > > > >
> > > > > Frank
> > > > >
> > > > > ================================
> > > > > interface FastEthernet0/0.10
> > > > > description This port connects to Area 12. It is a NBMA netwok
> > > > > encapsulation isl 10
> > > > > ip address 172.16.25.2 255.255.255.0
> > > > > no ip redirects
> > > > > *ip ospf network non-broadcast*
> > > > >
> > > > >
> > > > > router ospf 1
> > > > > log-adjacency-changes
> > > > > * area 12 virtual-link 172.16.101.1
> > > > > * network 172.16.12.0 0.0.0.255 area 12
> > > > > network 172.16.25.0 0.0.0.255 area 10
> > > > > * neighbor 172.16.25.7
> > > > > *
> > > > > #sh version
> > > > > Cisco IOS Software, 3600 Software (C3640-JK9O3S-M), Version 12.4(12),
> > > > > RELEASE SOFTWARE (fc1)
> > > > >
> > > > > /* Reload and IOS shows an error message during reload*/
> > > > > # reload
> > > > > ... ...
> > > > > Processor board ID 15663547
> > > > > R4700 CPU at 100MHz, Implementation 33, Rev 1.0
> > > > > 1 FastEthernet interface
> > > > > 4 Serial interfaces
> > > > > DRAM configuration is 64 bits wide with parity disabled.
> > > > > 125K bytes of NVRAM.
> > > > > 32768K bytes of processor board System flash (Read/Write)
> > > > > *OSPF: Neighbor command is allowed only on NBMA and
> > > > > point-to-multipoint
> > > > > networks
> > > > > *
> > > > > Press RETURN to get started!
> > > > > ... ....
> > > > >
> > > > >
> > > > >
> > _______________________________________________________________________
> > > > > Subscription information may be found at:
> > > > > http://www.groupstudy.com/list/CCIELab.html
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Tue Jan 01 2008 - 12:04:29 ARST