I had some similar trouble with a couple of routers and I believe I tracked
it down to missing reverse lookup. I put full sets of address/name in
/etc/hosts
for those routers and it cleared up. You should leave turned the flags for
unnumbered and for secondary. I think the problem comes from the new
thoroughness in avoiding the old problem of creating two different nodes
for
the same router.
Cordially,
Leslie A. Clark
IBM Global Services - Systems Mgmt & Networking
Detroit
---------------------- Forwarded by Leslie Clark/Southfield/IBM on
04/27/2000 07:40 AM ---------------------------
Kostas Kottos <K.Kottos@asyk.ase.gr>@tkg.com on 04/27/2000 02:56:21 AM
Please respond to IBM NetView Discussion <nv-l@tkg.com>
Sent by: owner-nv-l@tkg.com
To: "'nv-l@tkg.com'" <nv-l@tkg.com>
cc: Kostas Kottos <K.Kottos@asyk.ase.gr>
Subject: [NV-L] NV6.0: Remote Router Gets Deleted After Discovery
Dear All,
I have a strange problem with NV6.0 on SunOS 5.6 with Framework 3.6.2
and SEA v1.0.3
The NMS station resides on a network segment where the gateway
address is HSRP (a cluster of two ethernet interfaces, one to each central
router).
The two central routers are CISCO 7500. During the discovery process the
two central routers are discovered properly (SNMP is configured and working
allright).
These two central routers are connecting (via serial PPP lines) many remote
routers (a remote router has one serial interface to each central router
for
redundancy). The serial interfaces are not unnumbered (they are configured
with IP addresses). The remote routers are also CISCO (2600)
Upon discovery of one remote router (by using its IP address which is
declared
in DNS) the remote router gets added on the map. After doing demand poll
on the remote router (the SNMP mechanism is also configured and working
properly for the router) all its other interfaces are discovered, but after
a while all
the interfaces and eventually the remote router get deleted from the map (
I
can see all these events till the deletion event at the Control Desk)
On discovering the remote router I've turned off the Autodiscovery option.
The initial options for netmon where -P , -S (for Secondary Address
Support)
and -u (for unnumbered interfaces support). I tried all the combinations
between
these switches, leaving at the end only the -P flag, but without a positive
result.
The funny thing is that on the same network segment with this NMS I have
another
machine (SunOS 5.6, TivFramework 3.6.1, NV5.1.2, SEA 1.0) which discovers
the remote routers without having problems!
Has anyone addressed a similar issue? Do you know whether this is a problem
on
NV6.0?
Sorry for the long listing, I' ve tried to make this as accurate as
possible.
Sincerely,
Kostas
Kostas Kottos
K.Kottos@asyk.ase.gr
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