From: Hans (yyao@xxxxxxxxxxxx)
Date: Fri Aug 17 2001 - 13:01:19 GMT-3
Thanks Brian,
The fact is, I did not use network xxxx 0.0.0.0 at the very beginning. I have e
ncountered some wierd stuff using 0.0.0.0 when redistributing ospf about two mo
nths ago. From then on, I swear not to use 0.0.0.0 in ospf, no matter how much
pains I will have to use the wildcast mask. 0.0.0.0 in opsf is a Cisco bug.
I configured loopback before I turned up ospf on every router. I know I did not
have problem with loopback and RID in my case, just let you know I follow stri
ckly the sequence to configure ospf over frame relay.
There is only one thing I did not do, reload, I will try to reload the routers
and let you know my observation.
Thanks,
Hans
> From: "Brian Lodwick" <xpranax@hotmail.com>
> Date: 2001/08/17 Fri AM 11:28:12 EDT
> To: yyao@sympatico.ca
> CC: ccielab@groupstudy.com
> Subject: Re: Re: ospf over frame relay
>
> You know I did the same thing and was having an issue like yours. I bet you
> changed the mask and didn't see anything happen to the routing table entry
> even if you clear the OSPF process. Try rebooting the routers you changed
> this on, and see if this works. I know it sounds like Microsoft, but I've
> found this to be the case with a few other things in OSPF as well as with
> removing frame subinterface configurations.
> Like for instance lets say you enable OSPF on a box and then later down the
> road you add a loopback interface. The router address will stay the highest
> up interface address until a reboot is done, you could try clearing the
> process whatever but the router address won't change. This doesn't seem like
> it would be an issue, but in fact it does get to be an issue if you try to
> run a virtual-link through it. You will run into a wierd problem where the
> virtual link will look like everything is fine but you will notice there
> were no routes on the backbone side to the virtual link areas networks.
> After a reload the highest loopback address will be chosen as the router
> address, then you have to obviously change the configuration on the backbone
> router to point the virtual-link to the new router address and everything
> will be fixed.
>
> >>>Brian
>
> >From: Hans <yyao@sympatico.ca>
> >Reply-To: yyao@sympatico.ca
> >To: "Brian Lodwick" <xpranax@hotmail.com>,yyao@sympatico.ca
> >CC: ccielab@groupstudy.com
> >Subject: Re: Re: ospf over frame relay
> >Date: Fri, 17 Aug 2001 10:54:24 EDT
> >
> >I did that in my config, but not working. I did not use"network xxxx
> >0.0.0.0..." I used the wildcard mask.
> >
> >Hans
> > >
> > > From: "Brian Lodwick" <xpranax@hotmail.com>
> > > Date: 2001/08/17 Fri AM 10:39:14 EDT
> > > To: yyao@sympatico.ca
> > > CC: ccielab@groupstudy.com
> > > Subject: Re: ospf over frame relay
> > >
> > > Try changing the OSPF network statement wildcard mask to reflect the
> > > interface's mask.
> > >
> > > >>>Brian
> > >
> > >
> > > >From: Hans <yyao@sympatico.ca>
> > > >Reply-To: Hans <yyao@sympatico.ca>
> > > >To: CCIElab@groupstudy.com
> > > >Subject: ospf over frame relay
> > > >Date: Fri, 17 Aug 2001 10:21:48 EDT
> > > >
> > > >Hi all,
> > > >
> > > >R2/s0--pvc--s0/R1/s1--pvc-s0/R3
> > > >
> > > >R1 is the hub router with 2 pvcs, R2 and R3 are spokes with only one
> >pvc
> > > >each. All the routers use physical interface. I have also configured
> >frame
> > > >relay map with the broadcast key word on both R2 and R3 so that they
> >can
> > > >ping each other.
> > > >
> > > >Then I enable ospf and put ip ospf network point-to-multipoint on all
> >the
> > > >serial interfaces of the three routers. I have loopbacks(/24)
> >configured on
> > > >all the three routers and include them in ospf and I also put ip ospf
> > > >network point-to-point under all the loopbacks, I know otherwise the
> > > >loopback will appear to be /32.
> > > >
> > > >Then I show ip route on R3, everything works perfect except I saw two
> >/32
> > > >ospf learnt route of R2's s0 and R1's0.
> > > >
> > > >The second weird thing is, when I try to use distribute-list to filter
> >the
> > > >two /32 routes on R3, to prevent them from going into the routing table
> >of
> > > >R3, on the inbound interface of s0 of R3, I can not not remove them. (I
> > > >know it is impossible to remove any ospf routes from the ospf database,
> >but
> > > >what I am trying to do is just to prevent them from coming into the
> >routing
> > > >table). I still can see the two /32 routes in R3's routing table.
> > > >
> > > >Need your help on that.
> > > >
> > > >Hans
> > > >**Please read:http://www.groupstudy.com/list/posting.html
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:31:52 GMT-3