Alan,
You give us your forward DNS entried but not the reverse DNS. My bet
would be that your reverse DNS files have 172.22.97.69 resolving back to
ciml34001 ?? I would check that with nslookup from your NetView system.
Remember NetView generally starts with IP addresses, not names. You
have emphasised this by putting 172.22.97.69 in your seedfile. The
first thing NetView will try and do is ping that address. If it works,
it will try and resolve the address to a name via DNS. If it gets a
name, that will be used as the Selection Name key field in the NetView
object database.
Can you actually ping that loopback address? I'm not sure precisely how
the algorithm works, but if NetView can't ping the loopback it may end
up pinging interfaces it CAN reach and then the DNS step will kick in on
the first interface that got a successful ping response - which looks
like it might be your ethernet interface.
Cheers,
Jane
Alan E. Hennis wrote:
Esteemed List Members
Here is my configuration
NetView 7.1.3 FixPack 1
RedHat Linux 7.2
Can anyone provide some insight as to how NV selects the IP address used to
manage a device? Or more specifically how it selects the name of the
device? I have a Cisco router with the following interfaces
!
interface Loopback0
ip address 172.22.97.69 255.255.255.252
!
interface Serial0
ip address 172.22.97.66 255.255.255.252
!
interface FastEthernet0
ip address 172.22.34.1 255.255.255.0
Here are my seed file entries.
172.22.97.69 # cimlpeor - This is the loopback address
%172.22.97.65 # cimlpeor hub - This is used for our BRP
because we have two hub routers one active and one standby
Here are my DNS entries
Name: cimlpeor.corp.cat.com <=== This is the loopback
Address: 172.22.97.69
Name: cimlpeor.corp.cat.com <=== This is the WAN
Address: 172.22.97.66
Name: ciml34001.pic.cat.com <=== This is the
Ethernet
Address: 172.22.34.1
I have manually added this device (i.e. Edit -> Add -> Object...) using the
loopback address. The device is added as cimlpeor.corp.cat.com. I do a
demand poll to quickly discover the remaining interfaces and NetView
changes the name of the device to "ciml34001".
I have done a lot of reading about the optimal setup for DNS. Put the
loopback into the forward and reverse lookup and the remaining interfaces
only into the reverse. However for political reasons I may not be able to
do that. I have also read posting about forcing NetView to use the loopback
address for management. I am still a bit confused as to why NetView selects
the device name of ciml34001 instead of what I want to use which is
cimlpeor.
Thanks
Alan E. Hennis
Caterpillar Inc.
Systems+Process Division
309.494.3308
hennis_alan_e@cat.com
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