Secondary IP adr shows up first in DNS

[Joel]

I recently added the smtp service on my win2k Domain Controller which also
runs DNS server. Thinking that it would be better to have a "virtual"
interface for smtp, I added a secondary ip address to my ethernet interface.
Since doing this, I am bothered by the fact that workstations on the domain
now show the secondary ip address as being listed first when I run nslookup.
Is there a way to correct it so that my primary ip address gets listed
first? And is it a problem?

Thanks, Joel

 

[Ace Fekay [MVP]]

In

I recently added the smtp service on my win2k Domain Controller which
also runs DNS server. Thinking that it would be better to have a
"virtual" interface for smtp, I added a secondary ip address to my
ethernet interface. Since doing this, I am bothered by the fact that
workstations on the domain now show the secondary ip address as being
listed first when I run nslookup. Is there a way to correct it so
that my primary ip address gets listed first? And is it a problem?

Thanks, Joel

That's indicative of Round Robin. Both addresses will register.
You could disable Round Robin and use Subnet Ordering.

Is this causing any problems with domain functionality? If not, I wouldn't
be bothered over it. If it's causing problems, then I would fret. Nslookup
is just returning the name and IP for you. If the clients can resolve the
domain rsources, and there are no errors, then I would just leave it go.

Any reason that you need the extra IP? Why not just use the default IP of
the NIC? Reasons?


--
Regards,
Ace

Please direct all replies to the newsgroup so all can benefit.

Ace Fekay, MCSE 2000, MCSE+I, MCSA, MCT, MVP
Microsoft Windows MVP - Active Directory

 

[Joel]

Ace, apparently my reply never made it on so let me try again!

Thank you for your comments. At this point, I will prefer not to worry
about it! My reasoning for using the extra ip was a throwback to nt 4.0
when using smtp--wasn't it recommended to create a secondary ip when
utilizing smtp?

Joel
"Ace Fekay [MVP]"

 

[Ace Fekay [MVP]]

In

Ace, apparently my reply never made it on so let me try again!

Thank you for your comments. At this point, I will prefer not to
worry about it! My reasoning for using the extra ip was a throwback
to nt 4.0 when using smtp--wasn't it recommended to create a
secondary ip when utilizing smtp?

Joel

Not necessarily, unless you're creating a connection to a partner with an
addition virtual SMTP server that you would want some sort of security on
it, such as TLS or a non publicly published IP. Otherwise, just stick with
the default or leave it as "all unassigned".

--
Regards,
Ace

Please direct all replies to the newsgroup so all can benefit.
This posting is provided "AS IS" with no warranties.

Ace Fekay, MCSE 2000, MCSE+I, MCSA, MCT, MVP
Microsoft Windows MVP - Active Directory