Static IP address and DHCP range

Hi,
A month back I decided to move over from Win to OS X and got my MB Pro RD. Along with that decided to replace my DLink DIR-655 wireless router with TC.
My home network counts up to 15 devices that uses wireless AP. ISP ethernet cable comes out of wall and directly to TC, no other devices in between.
Back in time when I had DLink in use it was using static IP 89.201.x.x and DHCP was assiging 192.168.x.x addresses to devices.
Now when moved over to TC only DHCP range I can get is in range 89.201.x.x, it does not allow to change DHCP to something else than 89.201.x.x
Question - is there a way to configure TC so that I use same static IP (89.201.x.x) but DHCP gives out 192.168.x.x to devices?
Thanks in advance!
BR
UAUX

Ok you must set the TC into router mode.. at the moment you have it in some other mode..
You can use 192.168 if you want to but by default the TC is 10.0.1.x
So the Internet tab should be set either dhcp or if you have static IP then you can apply that.
Normally even a static IP from the ISP is still received by dhcp on the WAN interface.
On the Network tab you must select DHCP + NAT.
In the network options you change the IP and dhcp range..
The TC always takes address 1.. and you do not set the TC address directly.. rather you set the dhcp range and the TC will follow.
So in my example I have set 192.168.2.2-200 for dhcp and the TC will automatically become 192.168.2.1
Set it as you prefer.

Similar Messages

I want to reserve a static IP address on my Airport extreme. What is the difference between reserving by MAC Address and DHCP Client ID?

I want to understand the differences in the way you can reserve a static address for a device on the network. I had previously set the device itself to an address and then reserved it with DHCP Client ID, which I thought was just the devices static addresss. I'm not sure if this was in fact correct or just happend to work. I know what a MAC address is, but I'm not really sure what the DHCP Client ID is. So it would be great if someone could clarify it, and the difference between reserving address by MAC Address or DHCP Client ID.

A MAC address is a unique identification consisting of letters and numbers in a form that looks like this:
xx:xx:xx:xx:xx:xx
Every network device has a MAC address, which can be found on a label on the bottom or back of the device. Apple calls this the Ethernet ID.
A DHCP Client ID is an optional name that you can assign to a device. For example, on your Mac....
Open System Preferences (gear icon on the dock)
Open Network
Click on Ethernet
Click Advanced at the lower right
You may be able to edit the DHCP Client ID here....for example.....you could enter MJ500's MacBook in the space provided. That would be the Client ID of your Mac.

Change to a static IPv4 address and lost IPv6 - SMC D3G and Airport Extreme

I hope someone can help sort out my IPv6 problem. We have a business Internet account with the SMC D3G-CCR gateway and Apple Airport Extreme (the new tall model). While using dynamic addresses and letting the SMC gateway handle DHCP (Airport Extreme in bridge mode) my IPv6 tests all worked (outbound requests worked - I never tried any incoming access to servers). The test site at http://test-ipv6.com said all was good and I could ping6 ipv6.google.com from any inside computer. Due to a new client project requirements, I got a static IP address today. Comcast reconfigured the SMC gateway and I set up the Airport Extreme to handle internal routing and DHCP and port forwarding for a camera and SSH services. All of that IPv4 stuff seems to be working properly. Unfortunately, I can't find a combination of settings that will give me access to outside IPv6 servers anymore. I was hoping to start testing a small Raspberry Pi server using inbound IPv6, but now I can't seem to get anything going with IPv6. The SMC box does have a setting that appears to block incoming IPv6 requests. But I assumed that would be disabled with the static IP configuration. Either way, it shouldn't block my outbound requests so something else must be wrong. Am I missing a setting somewhere? Do I need Comcast to change something else? Do I need a different gateway device?

First, I am assuming that you are trying to administer your AirPort base station for a static IP address using the iOS version of the AirPort Utility ... correct?
If so, then to do so:
Start the AirPort Utility app on the iPad
Select your base station.
Select Edit
Select Internet Connection
Select Static
Enter the appropriate IP address information
Select Done
Sorry, it does not appear that direct input for DNS IP addresses is an available option with this version of the iOS AirPort Utility app. Not sure why this was not included.

How to setup a static ip address and DNS on airport extreme using the iOS Airport Utility?

I am at a location that only has wired ethernet. The ethernet connection has a specific Static IP address, subnet, gateway, and DNS setting. I cannot seem to find how to enter DNS settings using the Apple Utility on an iPad. HELP!!!

First, I am assuming that you are trying to administer your AirPort base station for a static IP address using the iOS version of the AirPort Utility ... correct?
If so, then to do so:
Start the AirPort Utility app on the iPad
Select your base station.
Select Edit
Select Internet Connection
Select Static
Enter the appropriate IP address information
Select Done
Sorry, it does not appear that direct input for DNS IP addresses is an available option with this version of the iOS AirPort Utility app. Not sure why this was not included.

I have a HP OfficeJet Pro K550 with a default static IP address and I can't access it to change it.

Because this printer's default static IP is not in my subnet and my network does not have a DHCP server I am unable to access the settings I need to change the IP address to one I can use. I am using Windows 7 64-bit and am plugged into the printer via USB. I know if I had an IP address from my network I could type it into the address bar and open up far more settings but I am unsure how to do that since the default IP is not on my network.
This question was solved.
View Solution.

I assume you cannot log into the printer's subnet temporarily? Can you disconnect the printer from that subnet temporarily? Can you connect an Ethernet cable between the printer and your PC?
Say thanks by clicking "Kudos" "thumbs up" in the post that helped you.
I am employed by HP

HP LaserJet P1505n Printer frequently loses assigned static IP address and goes offiline

We have replaced printer several times, assigned printer static ip to eliminate network related issues. Ran, Scan Doctor;
- reinstalled printer drivers
- power cyled printer
- check for network connectivity
- Printer works perfectly ( for a brief period of time.)
What's mind boggling, ( if I may) is that IPv4 service was turned off when printer went offline. Logical right? Turned it back and it works for a while and goes offline again. Boggie man stops by that printer to turn-off network connections repeatedly. This is frustrating and makes my department look bad. May be we should try a different brand of printer. Any suggestions will be greatly appreciated.

Hi gr---8 ,
Sorry to hear you are still having issues setting up the printer on the wired network.
We will need to find out if it is the Ethernet port on the printer, or the network causing this issue.
Do you have Mac filtering on the router?
Disconnect the Ethernet cable from the printer.
Restore the printer back to factory settings.
Print a hardware test page to test the printer's hardware. Make sure the SSID and IP address is cleared from your router's setttings. Printing a Configuration Page in Windows.
Connect the Ethernet cable directly to the computer.
Print the configuration page again to see if you get a IP address to test the Ethernet port on the printer.
What is the IP address?
Run the add printer wizard to install the printer.
Test the printer.
Were you able to see the printer, add the printer and print?
What operating system are you using? How to Find the Windows Edition and Version on Your Computer.
Please provide in detail the results.
Have a nice day!
Thank You.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos Thumbs Up" on the right to say “Thanks” for helping!
Gemini02
I work on behalf of HP

IP Address and DHCP Server

anyone know if there is a way to turn off the dhcp server on the airport. This seems like a basic task to do but i just can't seem to find it. It should be there as even a 5 year old wired linksys router has this option. Along with that, is there any way to change the local ip address of the router to anything but the default .1 at the end of the ip address. This is because I have it routing on 192.168.2.... I also have a ubuntu server up and running that is manning the ip addresses, therefore it is not possible to have both of the the servers up and running at the time. That is why I would prefer the airport to go on 192.168.2.2 and the server be on 192.168.2.1.
Is any of this possible?

Hello ecbtln. Welcome to the Apple Discussions!
anyone know if there is a way to turn off the dhcp server on the airport.
Yes, the only way to disable the DHCP service is to set Connection Sharing (on the AirPort Utility's Internet tab) to "Off (Bridge Mode)."
Along with that, is there any way to change the local ip address of the router to anything but the default .1 at the end of the ip address.
Sorry, but no.
also have a ubuntu server up and running that is manning the ip addresses, therefore it is not possible to have both of the the servers up and running at the time.
Reconfiguring the base station as a bridge will "pass thru" the DHCP service from your Ubuntu server.

HH4 and static IP addresses on home network

I want to assign a static IP outside the DHCP range to a server on my home network. I know I've done this in the past as I already have another server on the network which the HH4 recognises as having a static IP (and not in the DHCP range) but I can't for the life of me remember how to do it now.
I do recall that it wasn't obvious last time, but I've looked repeatedly through the HH config options and can't find it. The only place that looks likely is the Device Information page, where if "IP address assignment" is DHCP then you can select "Always use this IP address" and type an IP address, but only addresses within the DHCP range are accepted (this is reasonable). But there seems no way to provide a non-DHCP address.
I've read elsewhere that I should allocate the static IP on the device itself, but this doesn't work - while the device is able to connect to the LAN and can ping/can be pinged by other devices, the HH doesn't recognise the device and it's unable to connect to the internet.
I've constantly been frustrated by the non-standard interface of the HH4, and the fact that BT will provide little information on how to configure it (no manual is available). I called BT just hours ago to ask their tech support the same question I'm asking here, and their response was that "they don't have that information". When I said I was amazed that they don't know how to support their own hardware, they replied that it came ready configured and I shouldn't need to change it. Unbelievable. I was invited to subscribe to their tech expert support for £8 per month to get the answer, so I suspect that the claimed ignorance is just a revenue-earning opportunity.
Anyhow, any help will be very welcome.
Solved!
Go to Solution.

licquorice wrote:
Hmm, as far as I'm concerned the only 'true' static address is one configured on the device itself. Anything else is a non-changing dynamic address which is still at the mercy of the router dishing it out correctly.
That's a fair point. Perhaps I'm not used to routers (or just never used the feature) that allow "sticky" allocations within the DHCP range. So I see (saw?) DHCP and non-DHCP addresses as different.
However, I have to admit to feel a bit stupid at this point. I've just looked at the HH display and now I can see my device in all its static glory! This is after a number of days of testing and experimentation and getting nowhere (and before you ask, yes, regular refreshing). It's puzzling - perhaps it takes time for the HH to pick up a static allocation and I just didn't give it long enough.
So it does appear to be working now. I can confirm that your advice of just defining the address on the device is the way to go, and eventually the HH will recognise it.
Thanks to all for your patience!

Port Forwarding and Static IP addresses

Netcomm NB1300 router and Airport Express.
I want to use and old G3 mac running 10.3.9 as a server for HTTP and FTP. The Mac is currently connected via Airport but I can connect it via Ethernet if necessary.
I understand that I will have to activate Port Forwarding on my Router with Ports 21 and 80 to allow external Internet access to the G3. I will also have to configure DHCP Manually for a Static IP address and probably link up with a Free DNS service to maintain reliable access to the G3.
I have other computers on the network, two Macs (Ethernet / 10.3.9 & Airport 10.4.11) and two PC's (one with Vista, one with XP / both on Airport). Only one of the extra Macs is connected via ethernet, the rest are connected via Airport.
Will I have to assign Static IP addresses to all the computers or just the one I want to use as a server?
And also, can anyone tell me about Port Forwarding via Port 22 to give more security from external observation/attacks? I know nothing about this security measure.
Thanks in advance.
Christo.

Hi--
Christo wrote:
I am now assuming I will be able to access the 'server' from an external location. Very optimistic! But I can't test that for a couple of days.
Ah, but you've given up too soon! You can access your web server from outside your network real easy: you just need to find an external client you can point back to your site. I like to use the W4C validator to do that. It has the happy side effect of also telling you if your web page markup is valid. So you'd point your browser to the validator page:
http://validator.w3.org/
I like to choose "More Options" and tell it to show the page source. That way I can also verify that it's seeing the page I want it to see.
If I disconnect the iBook from Ethernet, can it still be accessible from an external location if it is connected to the Router via Airport, or do I have do so something like Port Forwarding with my Airport Express as well? Note the iBook can still connect to the Internet via Airport.
It would depend on how your Airport is set up. I think there are a couple of ways to set them up. One is to make the Airport a DHCP server, which would make the wireless network essentially a separate network. In that case, you'd have to forward throught the Airport, too.
My wireless network, though, is set up to bridge, so it's all one network. In that case, all I'd have to do to forward wirelessly to a client would be to set up the forward on the main router.
Being that persons other than myself will be accessing the iBook via FTP, do I give them the user account password of the Mac, or can I set a password in the Router or something else?
Also, when accessing the iBook on my local network using Cyberduck, I can see the entire directory of the iBook's user account. Is there a way to limit access to just one folder, such as the Public folder, or a self-designated folder?
Unfortunately, I don't know anything about setting up FTP. I would suggest that you look into maybe making an account on the iBook specifically for the FTP user and only give out that username and password. You might want to poke around in the Networking and the Web and Unix discussions in the Mac OS X Technologies area. I've seen a number of posts there about setting up FTP, and you might be able to find your answers there.
charlie

PS Script to Automate NIC Teaming and Configure Static IP Address based off an Existing Physical NIC

# Retrieve IP Address and Default Gateway from static IP Assigned NIC and assign to variables.
$wmi = Get-WmiObject Win32_NetworkAdapterConfiguration -Filter "IPEnabled = True" |
Where-Object { $_.IPAddress -match '192\.' }
$IPAddress = $wmi.IpAddress[0]
$DefaultGateway = $wmi.DefaultIPGateway[0]
# Create Lbfo TEAM1, by binding “Ethernet” and “Ethernet 2” NICs.
New-NetLbfoTeam -Name TEAM1 -TeamMembers "Ethernet","Ethernet 2" -TeamingMode Lacp -LoadBalancingAlgorithm TransportPorts -Confirm:$false
# 20 second pause to allow TEAM1 to form and come online.
Start-Sleep -s 20
# Configure static IP Address, Subnet, Default Gateway, DNS Server IPs to newly formed TEAM1 interface.
New-NetIPAddress –InterfaceAlias “TEAM1” –IPAddress $IPAddress –PrefixLength 24 -DefaultGateway $DefaultGateway
Set-DnsClientServerAddress -InterfaceAlias “TEAM1” -ServerAddresses xx.xx.xx.xx, xx.xx.xx.xx
Howdy All!
I was recently presented with the challenge of automating the creation and configuration of a NIC Team on Server 2012 and Server 2012 R2.
Condition:
New Team will use static IP Address of an existing NIC (one of two physical NICs to be used in the Team). Each server has more than one NIC.
Our environment is pretty static, in the sense that all our servers use the same subnet mask and DNS server IP Addresses, so I really only had
to worry about the Static IP Address and the Default Gateway.
1. Retrieve NIC IP Address and Default Gateway:
I needed a way to query only the NIC with the correct IP Address settings and create required variables based on that query. For that, I
leveraged WMI. For example purposes, let's say the servers in your environment start with 192. and you know the source physical NIC with desired network configurations follows this scheme. This will retrieve only the network configuration information
for the NIC that has the IP Address that starts with "192." Feel free to replace 192 with whatever octet you use. you can expand the criteria by filling out additional octects... example:
Where-Object
$_.IPAddress
-match'192\.168.' } This would search for NICs with IP Addresses 192.168.xx.xx.
$wmi
= Get-WmiObject
Win32_NetworkAdapterConfiguration
-Filter "IPEnabled = True"
|
Where-Object {
$_.IPAddress
-match '192\.' }
$IPAddress
= $wmi.IpAddress[0]
$DefaultGateway
= $wmi.DefaultIPGateway[0]
2. Create Lbfo TEAM1
This is a straight forward command based off of New-NetLbfoTeam. I used "-Confirm:$false" to suppress prompts.
Our NICs are named “Ethernet” and “Ethernet 2” by default, so I was able to keep –TeamMembers as a static entry.
Also added start-sleep command to give the new Team time to build and come online before moving on to network configurations.
New-NetLbfoTeam
-Name TEAM1
-TeamMembers "Ethernet","Ethernet 2"
-TeamingMode SwitchIndependent
-LoadBalancingAlgorithm
Dynamic -Confirm:$false
# 20 second pause to allow TEAM1 to form and come online.
Start-Sleep
-s 20
3. Configure network settings for interface "TEAM1".
Now it's time to pipe the previous physical NICs configurations to the newly built team. Here is where I will leverage
the variables I created earlier.
There are two separate commands used to fully configure network settings,
New-NetIPAddress : Here is where you assign the IP Address, Subnet Mask, and Default Gateway.
Set-DnsClientServerAddress: Here is where you assign any DNS Servers. In my case, I have 2, just replace x's with your
desired DNS IP Addresses.
New-NetIPAddress
–InterfaceAlias “TEAM1”
–IPAddress $IPAddress
–PrefixLength 24
-DefaultGateway $DefaultGateway
Set-DnsClientServerAddress
-InterfaceAlias “TEAM1”
-ServerAddresses xx.xx.xx.xx, xx.xx.xx.xx
Hope this helps and cheers!

I've done this before, and because of that I've run into something you may find valuable.
Namely two challenges:
There are "n" number of adapters in the server.
Adapters with multiple ports should be labeled in order.
MS only supports making a LBFO Team out of "like speed" adapters.
To solve both of these challenges I standardized the name based on link speed for each adapter before creating hte team. Pretty simple really! FIrst I created to variables to store the 10g and 1g adapters. I went ahead and told it to skip
any "hyper-V" ports for obvious reasons, and sorted by MAC address as servers tend to put all thier onboard NICs in sequentially by MAC:
$All10GAdapters = (Get-NetAdapter |where{$_.LinkSpeed -eq "10 Gbps" -and $_.InterfaceDesription -notmatch 'Hyper-V*'}|sort-object MacAddress)
$All1GAdapters = (Get-NetAdapter |where{$_.LinkSpeed -eq "1 Gbps" -and $_.InterfaceDesription -notmatch 'Hyper-V*'}|sort-object MacAddress)
Sweet ... now that I have my adapters I can rename them into something standardized:
$i=0
$All10GAdapters | ForEach-Object {
Rename-NetAdapter -Name $_.Name -NewName "Ethernet_10g_$i"
$i++
$i = 0
$All1GAdapters | ForEach-Object {
Rename-NetAdapter -Name $_.Name -NewName "Ethernet_1g_$i"
$i++
Once that's done Now i can return to your team command but use a wildcard sense I know the standardized name!
New-NetLbfoTeam -Name TEAM1G -TeamMembers Ethernet_1g_* -TeamingMode SwitchIndependent -LoadBalancingAlgorithm Dynamic -Confirm:$false
New-NetLbfoTeam -Name TEAM10G -TeamMembers Ethernet_10g_* -TeamingMode SwitchIndependent -LoadBalancingAlgorithm Dynamic -Confirm:$false

Manual IP and DHCP conflicts

My Barricade g died (SMC2804WBRP-G). I replaced it with an Airport Extreme (802.11g).
With the Barricade g, I had manually assigned IP address to all the computers on the LAN (range 192.168.x.1-192.168.x.99). The router distributed IP addresses to the wireless clients via DHCP range (192.162.x.100-192.168.x.200)
I've setup the AEBS to Distribute IP addresses and selected Share a single IP address (using DHCP and NAT).
BUT, the AEBS is assigning some of the manual addresses to wireless client IP requests. Then the computer that is supposed to have a manual IP address doesn't have one. Basically, the manual and DHCP addresses are coming from the same pool and causing conflicts.
How do I deal with manual IP addresses AND DHCP with this router?
Thanks

David,
Thanks for the input. But, I may have misread my post.
From my original post.
'With the Barricade g, I had manually assigned IP address to all the computers on the LAN (range 192.168.x.1-192.168.x.99). The router distributed IP addresses to the wireless clients via DHCP range (192.162.x.100-192.168.x.200).'
In other words, on the network, LAN=static IPs, Wireless clients=DHCP.
You can have both static and DHCP on the same network.

Allocating a (local/in-house) IP address and DNS entry for a cabled Ethernet printer

I have an MI424WR Fios modem/wireless router. I have a laser printer connected to it using standard CAT-5 cabling.
I have tried several times to create a persistent enough IP address so that I can configure a Windows (Windows 7 and Windows 8) printer and printer port and get it to work over time. On ever other router I've had, I was able to configure a static IP address and configure a local DNS entry for it (which meant I could just configure printer ports looking for http://colorlaser - very easy to remember)
I think I have it working, then I leave it for a few days and the IP address evaporates and the driver stops working. The MI424WR advanced menus are nearly indecipherable (compared to *every* other home router I've ever used) and I'm running out of curse words to use when trying to get this to work.
Any ideas?
Thanks
Flydog
(PS: I'm very impressed that your "Spell Check" refuses to recognize "Fios")

I've solved this exact issue by configuring a static DHCP lease in the router for the printer. This way, I don't have to change any settings in the printer; which can be difficult depending on how the printer is configured.
Yes, I agree that the Actiontec router has a rather unfriendly interface. However, it is quite powerful once you figure out where everything is hidden.
Here's the process to setup a static DHCP lease for a printer (or any other device):
Make sure your printer is on and assigned an IP address.
Login to router
Click "My Network" in the top banner menu.
Click "Network Connections" in the left hand menu.
Click "Network (home/office)" in the Network Connections box.
Click "IP Address Distribution" in the Network (home/office) Properties box. Note it is hard to notice this is a link - click on the words.
Click on the "Connection List" button at the bottom of the IP Address Distribution Box.
Locate your printer in the list. The host-name may be something assigned by the router.
Click on the edit button in the Action column for the printer. The edit button is the center icon with a pencil on it.
Click the "Static Lease Type" checkbox.
Click Apply.
Click the edit button for the printer's DHCP entry AGAIN.
Now, you can set the IP address to any value within the router's DHCP range. You may also want to change the host name to something that make sense to you.
You can also try the "New Static Connection" at the bottom of the DHCP connection window, however I've not had much luck with it.
Good Luck!
If a forum member gives an answer you like, give them the Kudos they deserve. If a member gives you the answer to your question, mark the answer as Accepted Solution so others can see the solution to the problem.

Win CE vpn client and dhcp

Hi all,
I've got several win ce handheld devices that connects to an asa through a 3rd party vpn client, the asa is configured to authenticate the clients against a microsoft isa server and to provide ip address to clients by the way of an external dhcp server (ms domain controller).
All is working fine, except that when the devices goes standby the vpn gets disconnected, then the asa releases the client ip address and chances are high that at the next connection the client gets dfferent ip address, this is an issue for an old application that takes into account the ip address of the client.
I'm not aware of a way to assign the ip address to the clients using a radius attribute within ias, so I wonder if there is a way to force the dhcp to assign always the same ip address in such a situation.
Bye,
Max.

Hi Max
"asa is configured to authenticate the clients against a microsoft isa server "
I dont know how you authenticate to ISA, but if you mean IAS, then yes you can always assign same IP to a user.
You can achieve this by double-clicking desired user to assign static IP to, in Active Directory Users And Computers snap-in, Click Dial-In options, then click assign static IP address and assign desired IP.
Regards

How to configure Oracle Linux 6.5 to request ip address from dhcp server

I have installed Oracle Linux 6.5 (minimal installation) on a virtual machine created on VMware vSphere 5.5. I have tried to configure dhcp during the installation by editing IPv4 Settings of System eth0 to use Automatic (DHCP) but somehow it does not work.
Then I changed the ifcfg-eth0 to use static ip address and that works.
Here is the content of /etc/sysconfig/network:
NETWORKING=yes
HOSTNAME=TESTOL
Here is the content of /etc/sysconfig/network-scripts/ifcfg-eth0 using static ip address:
DEVICE=eth0
TYPE=Ethernet
UUID=xxxxxxxx.xxxx-xxxx-xxxxxxxxxxxx
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=none
HWADDR=xx:xx:xx:xx:xx:xx
IPADDR:##.##.###.###
PREFIX=24
GATEWAY=##.##.###.###
DNS1=##.##.###.###
DOMAIN:test.com
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME="System eth0"
Based on my understanding, I should able to use dhcp by changing ifcfg-eth0 (I commented the parameters not needed for dhcp by adding #) but I have tried the following ifcfg-eth0 and it does not work:
DEVICE=eth0
TYPE=Ethernet
UUID=xxxxxxxx.xxxx-xxxx-xxxxxxxxxxxx
ONBOOT=yes
NM_CONTROLLED=yes
#BOOTPROTO=no
BOOTPROTO=dhcp
HWADDR=xx:xx:xx:xx:xx:xx
#IPADDR:##.##.###.###
#PREFIX=24
#GATEWAY=##.##.###.###
DNS1=##.##.###.###
#DOMAIN:test.com
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME="System eth0"
I have also tried to add GATEWAY=##.##.###.### to /etc/sysconfig/network but that does not help.
I have checked that dhclient package is installed by using rpm -qa dhclient.
I'm new to Linux.
Thanks for any help

If this is your first experience with Oracle Linux, I recommend you perform a default installation instead of going minimal, which is just going to make things more difficult for no good reason. Enterprise Linux is not MS Windows and the difference between default and minimal installations do not compare.
You also do not want to use the rpm utility to install any software and use yum instead. The yum utility is standard. Rpm does not resolve software dependencies.
Your ifcfg-eth0 script is missing the line that specifies to use DHCP:
BOOTPROTO=dhcp
You can also use the network configuration utility, even in text mode, by typing the following at the command prompt of root:
system-config-network
If the above utility is not installed:
yum install system-config-network-tui
You will have to configure an appropriate yum repository file. The process is explained in the Oracle Linux release notes:
https://oss.oracle.com/el6/docs/RELEASE-NOTES-U5-en.html
See 3.2.3. About Oracle Linux Installation Media
Then insert the DVD or attach the DVD iso image to your virtual machine and mount it as following:
mkdir -p /media/ISOimage
mount /dev/cdrom /media/ISOimage
The path "/media/ISOimage" should be the same as you specified in the yum repository file.
After that you can use the yum utility to list or install software.

Max IPs in a DHCP range for Roaming network?

Setting up an AirPort roaming network comprised of a dozen or so AirPort-Extremes all connected via a Fast Ethernet backbone.
The Master base station has a Public IP on it's WAN side and is Set to 'Share a Public IP address' and DHCP - but it seems no matter which network prefix I choose for the LAN side, I can not create a DHCP range larger than a single Class C. Is there a way to give out more than 254 IPs? Or can you have a single roaming network with multiple base stations set to DHCP?

Is there a way to give out more than 254 IPs?
No, as the "main" router, providing DHCP server service is the limiting factor here.
Or can you have a single roaming network with multiple base stations set to DHCP?
This may be possible, but NOT with the Apple routers. When configured as bridges, as required for a roaming network, both their NAT & DHCP services are disabled.

Static IP address and DHCP range

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