Actually, our Clients uses a different name for every router interface.
Most of the time I can fix the problem by deleting the other
interfaces and demand poll one. The problem arises when I see HSRP
running, we are using the standard x.x.x.1 for the virtual, and x.x.x.2
and x.x.x.3 for the actual interface address. For some reason, all the
x.x.x.1's still resolves in the DNS. I can't simply delete the
interfaces and demandpoll one because the virtual address actually
points to a existing router and will discover the x.2 or x.3 addresses
which already exist. So netview will ignore it.
Unless, our client fixes the DNS (not likely), or there is a way to
specify which router has HSRP (which I believe there aren't currently,
but it would be a nice addition), I am currently SOL. I am currently
just going to create a location object, and just group all those HSRP
interfaces in there for cosmetic purposes.
--- Leslie Clark <lclark@US.IBM.COM> wrote:
> Having all interfaces named in DNS should not cause
> a problem for Netview.
> It is the preferred approach, as long as all of the
> names are the same.
> That is unless something has changed. I'm getting
> suspicious, though. In
> the
> cases where you are seeing two nodes, does the DNS
> use the round-robin
> approach?
> That is, does it resolve the name to a different
> address each time? I've
> seen
> this a couple of times lately and it seemed to
> coincide with this sort of
> problem. If that's the case, it seems like putting
> one entry in /etc/hosts
> for
> the router would solve the problem. With
> /etc/netsvc.conf set to
> hosts=local,bind
> the name would always resolve to the one address,
> and the rest of the
> addresses
> would resolve to the single name in DNS.
>
> Another possiblity is that they are using HSRP and
> DNS has maybe a little
> too
> much information regarding the hsrp interface. This
> part always confuses
> me,
> so I won't say any more about that.
>
> Cordially,
>
> Leslie A. Clark
> IBM Global Services - Systems Mgmt & Networking
> (248) 552-4968 Voicemail, Fax, Pager
>
>
> ---------------------- Forwarded by Leslie
> Clark/Southfield/IBM on 04/19/99
> 02:18 PM ---------------------------
>
>
> Xu He <xuhe@YAHOO.COM> on 04/16/99 11:57:53 AM
>
> Please respond to Discussion of IBM NetView and
> POLYCENTER Manager on
> NetView <NV-L@UCSBVM.UCSB.EDU>
>
> To: NV-L@UCSBVM.UCSB.EDU
> cc: (bcc: Leslie Clark/Southfield/IBM)
> Subject: Re: Routers that appears twice
>
>
>
>
>
> Yes, we see this at our locations a lot. For us,
> it's a problem with
> the DNS, for some strange reason, the WAN people at
> my client site
> decided to give a DNS name for each interface on the
> router. It's not
> too briliant of an idea, but it's something i have
> to live with.
> During the initial discovery ping sweep, it sees the
> address and
> resolve a name to the address. Since there are
> multiple DNS entries
> associated with the same router, it creates two
> entries in the map.
>
> What I ended up doing is delete both entry, put the
> ip address of the
> interface I care about in the netmon.seed. Once I
> discovered the
> correct one, I demand poll it and most of the time
> it will generate a
> correct symbol. It's a painstaking process.
>
> Hope this helps.
> Xu He
>
> --- Adrian Cappelletti <Adrian@TECNET.COM.AR> wrote:
> > Hi all,
> >
> > Did it happen that 1 router appears twice in the
> > same level of submap?. I mean: Suposse that you
> have
> > a router with 4 interfaces. The situation is that
> in
> > one symbol you see 2 interfaces and in a second
> > symbol you see the others 2. But, all interfaces
> > belong to a one router.
> >
> > Did anybody suffer something like this ?
> >
> > Thanks in advance.
> >
> > Adrian
> >
> >
> >
>
> ===
> Xu He
> Network Engineer
> Network Solutions, Inc
> _________________________________________________________
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