We help IT Professionals succeed at work.

Create new subnet-or dns zone

tootsie_roll
tootsie_roll used Ask the Experts™
on
Have 5 subnets currently that co-inside with 5 separate locations. I need to add a new subnet at the Main office for our phone system (VoIP). The only things on this subnet will be the phone system server and just phones. I added a new Reverse Lookup Zone for this subnet on our DNS server--I made it 172.26.220.*. My new server can connect to the network, I can ping my other pc's and vice versa. However, I cannot get to the internet nor can I ping internet. I unchecked 'Enhanced zone or IE' so I could try to get out-but am still unable to get out. Do I need to change or add any settings on the new segment to make this take effect? Is it possible my firewall would deny traffic? Do I need to add DHCP to this phone server prior to it working?
Comment
Watch Question

Do more with

Expert Office
EXPERT OFFICE® is a registered trademark of EXPERTS EXCHANGE®
Dav GrayIT Manager

Commented:
Hi,

Have you configured the default gateway correctly?

Regards,
Dav

Author

Commented:
That is likely my issue. Where do I go to perform that task?
Dav GrayIT Manager

Commented:
The default gateway, should be the same as all of the other machines because its goes through your firewall and is the main route out to the internet.

You may have to configure it manually if you have not got a DHCP server for this subnet. Try configuring it on one machine/phone or the server first and check. If this works, simply add the default gateway to the rest of your machines/phones.

Author

Commented:
My setup is as follows and I am not sure what my new gateway would be for the new subnet:
*.*.229.* is my Main office ip's.  I want to add an additional subnet to accomodate more ip's...so I added a reverse lookup zone of *.*.220.*.  On my new server--I put static entry of *.*.220.2, then for gateway I put the router to internet of my *.*.229.* network which is *.*.229.1. It warns me that the default gateway is on another segment--but I click ok and i can see my other servers and access AD to add users to the box for remote admin and I can see my other pc's on the 229.* network.  I cannot access Internet though. Is this an issue with the firewall--where do I set up a default gateway?

Author

Commented:
I think the issue may be with our firewall--we may have to put a rule in place allowing the *.*.220.* traffic inbound/outbound and specify a port on the firewall as the gateway and hook up the new subnet to it via a switch. Does that make sense?
IT Manager
Commented:
From what you what you have said, this sounds all correct.

You will have to create a rule on the Firewall to accept traffic from your new route out to the internet in the same way as the other routers.

You may also need to add a static route from your existing subnet to your new subnet in the routing table.

Author

Commented:
Yep, that's what it was. Need to add rule in Firewall. Thanks :)