NAT without DHCP?

Is there anyway to get NAT on the Airport Exteme without the DHCP? I already have a DHCP server that I need to run and would like to use the APE as my router.
Troy

You might be able to trick it.
Explain what you are trying to do and why and we might be able to think a way around it.
eg. If you set the dhcp to a range of one address.. then assign that address to a fix MAC address which doesn't exist. Then you can actually have two dhcp servers in the network.. if the first one to respond is the TC it will fail as there are no more addresses available.. the trick is to then stop it responding to the second discover packet.. I have not played with it but certainly some things are possible.
TC and Airport boast the barest min of network setup.. designed like the army.. by geniuses for idiots.
Unfortunately just like the army, when you need to do something outside the rules, they make it hard for you.. !!

Similar Messages

I want to use Back to my mac. When I try to turn it on, it says "Back to My Mac may be slow because more than one device on your network is providing network services. Turn off NAT and DHCP on one of the devices and try again." How do I fix this?

Not sure if I am doing this right. This is my first time in the support community.
I imagine what I put in my heading was supposed to go in here.
I want to use Back to my mac. When I try to turn it on, it says "Back to my mac may be slow because more than one device on your network is providing network services. Turn off NAT and DHCP on one of the devices and try again. See the documentation that came with your device for information about turning off network services"
Does anyone know how I do this? I contacted my ISP (Telus in Canada) and they did not know anything (not that they usually do).

Why do ISPs insist upon making things so difficult for their customers?
If you cannot get them to understand that you would prefer to use your own router over their piece of cheap junk, perhaps the information in the following will be useful:
http://keithbalomben.wordpress.com/2012/03/29/telus-actiontec-v1000h-hacks-and-i nformation/
Scroll down to DHCP Settings
You will need to log in with proper "technician" credentials. They are provided in the above link as
Username: tech
Password: t3lu5tv
... but these may or may not work. Try it, and if you cannot get anywhere at least now you know what to ask Telus to do in return for your business.

OS deployment without DHCP in place. WinPE Needs DHCP?

Hi
We have config manager 2012 R2 integrated with MDT 2013. We have few locations that doesn't have DHCP servers and have static IPs. Does it possible to refresh (TS Will run from within the OS, capture user state, stage the winPE and reboot
the same machine, start deploying image) the machine without DHCP in place? just wondering if refresh actually maintains the static IP address in memory (variable) and can use it throughtout the deployment even when system is running in WInPE or is it mandatory
to have DHCP to assign automatic Ips to machine when its running in WinPE. Aim here is to achieve Zero touch refresh deployment.
Any pointers will be appreciated. Thanks
Regards

I never had to do it but it looks like it can be done with a little trickery
http://bscexp.blogspot.ie/2012/03/sccm-osd-migrate-network-settings.html
Gerry Hampson | Blog:
www.gerryhampsoncm.blogspot.ie | LinkedIn:
Gerry Hampson | Twitter:
@gerryhampson

Windows 7 & SCCM without DHCP

We are discussing the merits of moving forward with a Windows 7 rollout using SCCM 2007 and static IP addressing (no DHCP). Our environment is about 3500 workstations running XP and SCCM 2007 SP2. We intend to implement DHCP but don't have a target date.
We understand DHCPis required for zero touch OS deployment.
Would appreciate any MVP comments/opinions on how far the project might be able to proceed without DHCP and whether Microsoft tools can be installed (with limited functionality) like MS Application Compatability Toolkit, MS OFfice Environment Assessment
Tool, MS OFfice Migaration Planning Manager

Nothing actually requires DHCP and you will have no issues with any tools without it.
The only reason OSD is best with DHCP is two-fold:
- How else are you going to assign IP Addresses to the new systems? Doing anything manual defeats the purpose of having an
automated deployment system.
- PXE requires DHCP. There is no wiggle room on this one. PXE, as an industry/international standard, requires this -- this has nothing to do with Microsoft so please don't blame them. In lieu of PXE, you can use boot media, but PXE just makes the process
smoother.
Jason | http://myitforum.com/cs2/blogs/jsandys | Twitter @JasonSandys

CUBE and NAT without SIP ALG

I was wondering if anyone had a CUBE SIP Profile example for rewriting SDP to fix private-to-public IP address in the SDP so that CUBE can be used behind a static NAT without SIP ALG.

Im trying to connect a SIP softphone (on the outside) to a IP PBX on the inside. I am seeing postings that say that "ip nat service sip" is the command that enables that feature, and others say that it breaks it. So far my testings shows that it does break it. Ultimately I want my outside softphone to register to the Phone system as an external IP address. It seems like SIP normally relays the internal IP address and the ALG router will make the translation on outbound and send it to the right source.

WAN port without DHCP/NAT on WRTP54G

(Sorry if this issue was already discussed - I couldn't find it using Advanced Search) I find that my new WRTP54G works fine, supporting VoIP and several PC clients via its LAN switch, providing I enable its DHCP and NAT function. This is with the DSL modem connected to the WRTP54G's WAN port, as required for the VoIP module to access the internet. However, this configuration (the factory default) results in "double NAT" when used with my DSL modem. (This situation is evident by inspecting the HTML status screens of the respective equipments.) The obvious solution would be simply to disable DHCP and NAT in the WRTP54G and let the DSL modem do the hard work. However, disabling DHCP/NAT within the WRTP54G essentially shuts down all PC client access to the internet. The symptoms resemble a situation where packets are not being properly routed between the WRTP54G's LAN switch side and its WAN port (although I don't know whether that is the precise cause or not). On my previous WRT54G router used with a PAP2T, I saw the same behavior but the workaround was simple: move the DSL modem Ethernet port connection from the WRT54G WAN port to one of its LAN switch ports. Problem solved at the expense of occupying one of the four available LAN switch ports. Such workaround is not applicable to the WRTP54G due to the previously mentioned requirement of its VoIP module. Has anyone got their WRTP54G (or for that matter, WRT54G) working properly with its WAN port as a simple (non-DHCP/NAT) router? Please note my preferred Internet Connection Type (on the WRTP54G opening Setup page) is "Obtain an IP automatically" although a solution using "Static IP" would be OK. I am looking for a portable solution (for hotel rooms etc.), so I can't set the WRTP54G to "PPPoE" as suggested in some other forums. Thanks in advance for any help!

Use the Modem connected to WAN Port of the wireless router ....
In such case you can use the DHCP of the router also & other computers using the client services can work .....
Make sure that the Ip address should not conflict between the Vonage router & Linksys router .....
I think that Vonage is giving Ip - 192.168.15.1 ...& the default Ip for Linksys router is 192.168.15.1 ..... change the Ip for any of the router or modem to 192.168.20.1 .....
Also under Linksys router once you open the setup page ....
Leave the Internet Connection type to "Obtain an Ip automatically"
Click "MAC address clone"
Click enable & click clone
Click save settings ....
See if you are able to go online or not ....

No errors with NAT or DHCP, but can't ping server or access internet

2 weeks ago my Xserve was positioned directly behind a modem and acted as the router to my small office - supplying DHCP, NAT, etc. Then, the Xserve lost it's connection to the internet. The Xserve was unable to pull an address from the modem (via DHCP) and troubleshooting the issue with my ISP resulted in getting my modem swapped.
My Xserve is still unable to pull an address via DHCP directly from the modem. So, I called apple support. The tech I spoke to was extremely helpful and instructed me to place the Xserve behind a router so it could use a static ip - without having to pay my ISP for one. So, I did as he instructed.
Regardless, since my Xserve originally lost connection to the internet I have been unable to get my Xserve to supply NAT to my internal network successfully. DHCP is working fine, the firewall isn't logging any refusals, NAT isn't returning errors. All internal network functions work, I just can't access the internet from any machine other than the server.
Here is the network port breakdown:
Ethernet 1 (wan)
ip: 192.168.1.2
sub: 255.255.255.0
router: 192.168.1.1 (router supplying static ip)
dns: 208.67.222.222,208.67.220.220 (opendns)
Ethernet 2 (lan)
ip: 192.168.1.3
sub: 255.255.255.0
router: 192.168.1.3
DHCP settings:
start ip: 192.168.1.4
end ip: 192.168.1.254
sub: 255.255.255.0
interface: en1
router: 192.168.1.3
Firewall:
Allow all traffic from "any"
NAT:
IP Forwarding and Network Address Translation
External network interface: Ethernet 1
NAT Port Mapping Protocol enabled.
Other notes: I can see the Xserve from any device on the network (in Finder running OS X) but I cannot ping it via the router's ip. (example: ping 192.168.1.3) 100% packet loss.
The Xserve does have access to the internet.
The Xserve leases an ip to the devices on the network, but cannot ping them using their leased ip address.
Initially, I was receiving the following error:
"xserve subnets: create failed, Invalid/missing 'net_address' property
So I modified bootpd.plist by adding:
<key>net_address</key>
<string>192.168.1.0</string>
I no longer receive the error and DHCP works properly.
Any help is thoroughly appreciated as this issue has set me back over a week in troubleshooting.

Thanks again.
I'll try to be more clear about my current setup:
Modem
->
Router
DHCP enabled but supplying server with static ip of: 192.168.1.2 - hence my Ethernet 1 settings on my Xserve. The DHCP address the router supplies to other devices range between 192.168.1.101 - 192.168.1.150 (this is temporary). I'm using the Router as a temporary network connection for devices as I continue to setup the server. Once the server is completed, I will hook everyone up through the switch.
->
Xserve
The Xserve receives a static IP from the router above (192.168.1.2) even though the router gives DHCP addresses to other devices. The Xserve then goes out Ethernet 2 to (which has also been assigned a static internal address: 192.168.1.3) a switch.
->
Switch
The Switch definitely has DHCP disabled, and merely extends the network connection.
Right now, the Xserve is doing nothing other than attempting to supply an internet connection to devices attached to it. I performed a clean install after a day or two of troubleshooting.
I really want to be able to control content access as well as give certain devices priority over others using the Xserve. I want it to control... the network, in all aspects: DNS, Open Directory (Master), Firewall etc. Am I still able to control the network with the Xserve if it is hooked up side by side to the clients without reconfiguring my router to hop through the Xserve before going to the internet? If not, why not just use the Xserve as a middle man as I currently do?
What are the benefits of using it side by side to the clients? What are the drawbacks of my current setup? (Other than it not functioning)

DNS required for NAT and DHCP services?

I have a 10.6.2 server with a static IP, domain name, working as a gateway (I have my reasons) as well as providing some services inside and outside. My ISP has a PTR setup so the domain points to the static IP.
My question is, do I need the DNS service running on the server? Based on some of the docs it tells me to put my ISPs DNS servers in both of my servers ethernet port settings, as well as in the DHCP profile to give out to clients on the network. When I do this, clients cannot resolve names. I can ping IPs from the client, I can even ping my ISPs DNS servers from clients, but I can't resolve names. When I try to dig anything it just hangs there with a blinky cursor.
When I have the DNS service running it's all happy. The only thing is, clients on the LAN experience some serious lag when accessing services on the server, UNLESS I configure the DNS for my domain on the server with both internal and external IP addresses. Is that how it is supposed to be?

In the server zone files, the dedicated IP address should point to the machine name, as in name.someserver.com. The local IP address should point to name.local. If you have more than one domain name, the zone files should show their network IP address, not the dedicated IP address, which should only point to the machine name.
As a side note, I strongly advise against connecting a server directly to the Internet. It should be behind a router with DMZ/NAT/firewall capabilities. By the time you realize why, it will be too late.

Bridge or NAT and DHCP

Hi everyone, my network setup at home is the following:
-Fiber-->router provided by the service provider-->Airport Extreme
To the Airport extreme I have attacched a NAS, the Apple TV, my Hi-Fi system and the Airport provides wireless connectivity to the home devices (iMac, 2 Ipad and Iphone).
I am lynking my Macbook pro to the router provided by the Service Provider as I need gigabit ethernet connection to the NAS for working with heavy photography files, and this is a must for me. Also I need the NAS to be accessed by the devices attacched to the Airport.
Case1) I have observed that if I set up the Airport as NAT&DHCP I cannot see the NAS from the Macbook Pro (attached to the Service Provider router), and the speed of the wireless devices connected to the Airport is medium.
Case2) If I set up the Airport as Bridge, I can see the NAS from the Macbook Pro (attached to the Service Provider router, but this is related to the fact that in this case teh Airport is working as a Switch), and the speed of the wireless devices connected to the Airport is quite higher than teh previous case. The flip side is that with this set up not all my devices work, as the Service Provider does not let me connect as many devices as I want. So I'd need the Airport to be a router
Any hint on how I should set up the network?
thanks a lot

SO, I have a Motorola modem from Time Warner that they set to Bridge Mode.
This is plugged into an Airport Extreme that's set to DHCP and NAT. It's also got a 5GHz option enabled.
Also on the network, there is a Timecapsule that's set to extend the wireless network.
We have 2 iPhones, 5 iPads, 2 MacBooks and 2 iMacs right now.
Wireless access gets a bit wonky from some of the devices with access to the internet being spotty.
Are there too many devices of this setup? Is there a way to make access more predictable and stable?
Any ideas?

RV180 no internet in NAT if DHCP off

Hello,
I have a RV180 running behind a DSL-Router, connected to the WAN-Port. I have "internet" in my NAT if I have activated the DHCP. I want to use fixed IPs, so I have turned off the DHCP, than I have no constant conection to the internet.
Any idea?
br

at the RV180.
The RV180 gets a IP from the DSL-Router, that is working.
If the Local Net is working with DHCP, every thing is fine, but if I use static IPs, it is working but only for 5mins.

How to set VPN server with static IP without DHCP on

I set up a new Mac mini server with OS X 10.9.1 and Server App 3.0.1
My ISP gave me a static bublic IP address.
I have on:
- web server
- mail server
- DNS server
without using DHCP, but now i want to set up L2TP/IPSec VPN server and it requires that i give start IP address of the VPN server.
Can i use VPN server w/out DHCP server on?
If yes, how?
If not, when i turn on the DHCP server, what i have to do with web, mail servers?

To run a public VPN server, you need to do the following:
1. Give the gateway either a static external address or a dynamic DNS name. The latter must be a DNS record on a public DNS registrar, not on the server itself. Also in the latter case, you must run a background process to keep the DNS record up to date when your IP address changes.
2. Give the VPN server a static address on the local network, and a hostname that is not in the top-level domain "local" (which is reserved for Bonjour.)
3. Forward external UDP ports 500, 1701, and 4500 (for L2TP) and TCP port 1723 (for PPTP) to the corresponding ports on the VPN server.
If your router is an Apple device, select the Network tab in AirPort Utility and click Network Options. In the sheet that opens, check the box marked
Allow incoming IPSec authentication
if it's not already checked, and save the change.
With a third-party router, there may be a similar setting.
4. Configure any firewall in use to pass this traffic.

Is it possible to install PVM without DHCP in local network?

Hi!
We have main DHCP server in our company and i don't have access to it. So, it's difficult to install PVM from Network or i don't understand how to do in.
I created kickstart file and shared OEL DVD, also i configured VM as:
uuid = '0004fb00-0006-0000-db66-e8f031d2e557'
bootloader = '/usr/bin/xenpvboot'
vif = ['mac=00:21:f6:00:00:13,bridge=192.168.18.0']
name = '0004fb0000060000db66e8f031d2e557'
OVM_description = ''
guest_os_type = 'linux'
OVM_simple_name = 'pvm3'
on_poweroff = 'destroy'
boot = 'nc'
vfb = ['type=vnc,vncunused=1,vnclisten=127.0.0.1']
on_crash = 'restart'
on_reboot = 'restart'
vcpus = 2
cpu_weight = 27500
OVM_os_type = 'Oracle Linux 5'
memory = 4096
cpu_cap = 0
OVM_high_availability = False
disk = ['file:/OVS/Repositories/0004fb00000300007ab59846cb716517/VirtualDisks/0004fb0000120000193b8eda68cef44c.img,xvda,w', 'file:/OVS/Repositories/0004fb00000300007ab59846cb716517/ISOs/0004fb000015000013989eb97049c582.iso,xvdb:cdrom,r']
maxmem = 4096
bootargs = '--args network device eth0 bootproto static ip 192.168.18.182 netmask 255.255.255.0 --gateway 192.168.18.254 ks=http://192.168.12.93/KickStart.OEL.profiles/ks.cfg http://192.168.12.93/OracleLinux/DVD/'
VM starts but nothing happens. VM Manager shows that it has "Starting" state. Http server doen't have any request from my VM.
xend.log:
[2012-01-30 16:40:11 5530] DEBUG (XendDomainInfo:104) XendDomainInfo.create(['vm', ['name', '0004fb0000060000db66e8f031d2e557'], ['memory', 4096], ['maxmem', 4096], ['on_poweroff', 'destroy'], ['on_reboot', 'restart'], ['on_crash', 'restart'], ['on_xend_start', 'ignore'], ['on_xend_stop', 'ignore'], ['vcpus', 2], ['uuid', '0004fb00-0006-0000-db66-e8f031d2e557'], ['cpu_cap', 0], ['cpu_weight', 27500], ['oos', 1], ['bootloader', '/usr/bin/xenpvboot'], ['bootloader_args', '--args network device eth0 bootproto static ip 192.168.18.182 netmask 255.255.255.0 --gateway 192.168.18.254 ks=http://192.168.12.93/KickStart.OEL.profiles/ks.cfg http://192.168.12.93/OracleLinux/DVD/'], ['image', ['linux', ['videoram', 4], ['tsc_mode', 0], ['nomigrate', 0]]], ['s3_integrity', 1], ['device', ['vbd', ['uname', 'file:/OVS/Repositories/0004fb00000300007ab59846cb716517/VirtualDisks/0004fb0000120000193b8eda68cef44c.img'], ['dev', 'xvda'], ['mode', 'w']]], ['device', ['vbd', ['uname', 'file:/OVS/Repositories/0004fb00000300007ab59846cb716517/ISOs/0004fb000015000013989eb97049c582.iso'], ['dev', 'xvdb:cdrom'], ['mode', 'r']]], ['device', ['vif', ['bridge', '192.168.18.0'], ['mac', '00:21:f6:00:00:13']]], ['device', ['vkbd']], ['device', ['vfb', ['vncunused', '1'], ['vnc', '1'], ['vnclisten', '127.0.0.1'], ['xauthority', '//.Xauthority']]]])
[2012-01-30 16:40:11 5530] DEBUG (XendDomainInfo:2576) XendDomainInfo.constructDomain
[2012-01-30 16:40:11 5530] DEBUG (balloon:220) Balloon: 15733844 KiB free; need 16384; done.
[2012-01-30 16:40:11 5530] DEBUG (XendDomain:464) Adding Domain: 1
[2012-01-30 16:40:11 5530] DEBUG (XendDomainInfo:2886) XendDomainInfo.initDomain: 1 27500
[2012-01-30 16:40:11 6246] DEBUG (XendBootloader:113) Launching bootloader as ['/usr/bin/xenpvboot', '--output=/var/run/xend/boot/xenbl.1505', '--args', 'network', '--device', 'eth0', '--bootproto', 'static', '--ip', '192.168.18.182', '--netmask', '255.255.255.0', '--gateway', '192.168.18.254', 'ks=http://192.168.12.93/KickStart.OEL.profiles/ks.cfg', 'http://192.168.12.93/OracleLinux/DVD/', '/OVS/Repositories/0004fb00000300007ab59846cb716517/VirtualDisks/0004fb0000120000193b8eda68cef44c.img'].

Yes, you are a genius!!!
It works! Thanks a lot!
Is it possible to update OVS documentation? It think, it's quite important to have such example of configuration.
Final vm.cfg:
uuid = '0004fb00-0006-0000-db66-e8f031d2e557'
bootloader = '/usr/bin/xenpvboot'
vif = ['mac=00:21:f6:00:00:13,bridge=192.168.18.0']
name = '0004fb0000060000db66e8f031d2e557'
OVM_description = ''
guest_os_type = 'linux'
OVM_simple_name = 'pvm3'
on_poweroff = 'destroy'
boot = 'nc'
vfb = ['type=vnc,vncunused=1,vnclisten=127.0.0.1']
on_crash = 'restart'
on_reboot = 'restart'
vcpus = 2
cpu_weight = 27500
OVM_os_type = 'Oracle Linux 5'
memory = 4096
cpu_cap = 0
OVM_high_availability = False
disk = ['file:/OVS/Repositories/0004fb00000300007ab59846cb716517/VirtualDisks/0004fb0000120000193b8eda68cef44c.img,xvda,w', 'file:/OVS/Repositories/0004fb00000300007ab59846cb716517/ISOs/0004fb000015000013989eb97049c582.iso,xvdb:cdrom,r']
maxmem = 4096
bootargs = '--kernel images/xen/vmlinuz ramdisk images/xen/initrd.img args="ksdevice=eth0 network bootproto=static ip=192.168.18.182 netmask=255.255.255.0 gateway=192.168.18.254 ks=http://192.168.12.93/KickStart.OEL.profiles/ks.cfg" http://192.168.12.93/OracleLinux/DVD/'

Different deployment methods without DHCP

Hi,
We have small branches where in we don't have Dynamic IP address assignments (NO DHCP) server and workstations have static ip addresses. We want to updgrade from XP to Win 8.1 Update 1 and company is expecting all the possible methods of OS deployment and
that too ZTI.
- We can put IP helper so that workstations can get ip addresses from branch that have DHCP server. Can anyone suggest if this is doable?
- how do we maintain same IP address on workstations while they refresh, replace or deployed newly? If we go with PXE, Boot media or offilne mode, workstation need to be assigned same ip address that it has before upgrading to windows 8.1 update 1
i see only 1 approch to assign the same (like static) IP address and that is making reservations in DHCP server so that machine with the same MAC can get the same ip address.
Any suggestion or experience similar to above requirements would be appreciated. Thanks
Regards,

Hi，
We can put IP helper so that workstations can get ip addresses from branch that have DHCP server.
This could be the answer to your question. Not quite clear about your network topology, the goal is to communicate with DHCP. As long as client get its IP and DCHP option required, you shall be able to PXE boot.
When we encounter situation that DHCP locates in a different subnet with client, IP helper is always the solution.

Windows Server 2008 R2 without DHCP

I apologize as being new to the forum if I ask something which has been answered.
I am running following setup at home: D-Link DIR-655 router, Proliant N36L as a server, three wired desktop and two wireless laptops. I am trying to setup AD at home part as a function for four users, part as a learning experience. Server has static IP from
the router and no issues there. I get warnings from DNS and AD, that it cannot connect to the domain (karelpro.local) - not sure why, but the service is running.
My question is, whether I have to use the DHCP role to serve IP addresses to clients, or if I could use the router to server IP addresses. The reason I use the router DHCP is to server IP addresses to the laptops. I was told that Windows Server for the AD
does not need DHCP to function properly, but I cannot connect to the domain with my laptop - still has to try the wired computer.
Any advise is appreciated.

You can use the router DHCP, but for AD to work, you MUST use the server as a DNS server for both the server itself and the clients. So I would suggest you to
1) assign a static IP address (outside the DHCP scope) for the server, and set its own address as a DNS server in network settings
2) configure the router to give the clients your server's IP address as a DNS server
3) make sure that there are no other DNS servers defined for the clients and they all use dynamic IP settings
You obviously need to keep your server on to access Internet from the clients after doing this. But that's how it goes in an AD environment.
Tero Leskinen - MVP (Windows Server for Small and Medium Business / SBS)

Best way to deploy OS's without DHCP

Hello,
Our Server (500 Servers) and Desktop environment (1300 desktops) use static IP addressing. We've recently installed SCCM 2012 SP1 so I'm wondering what how I can best utilize this program to deploy operating systems. The videos I've
found on youtube and technet mainly describing deploying OS's when the environment utilizes a DHCP server which we do not use. Up until this point the desktop OS's were installed using GHOST and I manually installed the server OS's. Please advise what the
best (close to zero touch) installation method would be. The man who just retired who took care of all of the server\desktop updates used WSUS\Group policy to deploy the latest patches. My manager would like to get away from that and use SCCM to start patching
the whole environment. If possible, could the latest patches be applied to the OS after it was installed if a DHCP server is not used? Thanks for any and all comments.
Pat
Pat

Hi,
Please review the link below, there are some useful articles for you.
System Center 2012 or Microsoft Deployment Toolkit for OS Deployment
http://blogs.msdn.com/b/customer_reviews_of_stb_products/archive/2013/04/07/system-center-2012-or-microsoft-deployment-toolkit-for-os-deployment-part-2-by-dujon-walsham.aspx
Microsoft Deployment Toolkit (MDT) 2013 Overview
http://www.ronnipedersen.com/2013/06/microsoft-deployment-toolkit-2013-overview/
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
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NAT without DHCP?

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