E2500 disable DHCP and NAT

Does the stock firmware for the new E2500 allow DHCP and NAT to be disabled so that the router can act as an access point?

You can disable the DHCP server.
You can disable NAT. But there is no need to do so.

Similar Messages

Apple Airport Extreme Base Station for PPPoE, DHCP and NAT with ActionTec DSL modem

I just spent several hours trying to track down proper instructions for setting up my Apple AEBS to do the PPPoE, DHCP and NAT while connected to an ActionTec M1000 (no wireless module). It turns out my initial set ups on both devices were correct, but that the order for rebooting and reconnecting the two devices is critical. All of the threads I found on this forum and on many others suggested this was not possible, but it is. What I don't yet know is whether it is the best method for running my home network DSL connection to my ISP (CenturyLink).
The instructions I found that worked come courtesy of Brandon Konkle's blog and are both simple and clear: http://brandon.konkle.us/post/19637529637/centurylink-actiontec-q1000-airport-ex treme-bridge
The proper settings for the ActionTec DSL Modem can be found under Advanced Setup/IP Adressing/WAN IP Address
Click RFC 1483 Transparent Bridging then click on Apply.
(see also http://qwest.centurylink.com/internethelp/modems/m1000/pdf/M1000_BRIDGE.pdf )
To reduce time, do this BEFORE you reset your AEBS then set the AEBS so that you don't have to wait for the AEBS to reboot.
In contrast to what Brandon described for the Q1000 modem, my AEBS never reconnected to the modem (he describes his as getting an IP from his ISP, then dropping it then getting another over and over - mine never got an IP). Once you have reset both devices as described, the critical steps I have not found described elsewhere were:
1. Disconnect the power from both the modem and the Airport Extreme.
2. Disconnect the Ethernet cable between the two devices
3. Restore power to the 2 devices and allow them to fully reboot. For the ActionTec M1000, this is indicated when the lights stop blinking. (Note that the Internet light will NOT be lit in this instance since the modem is acting only as a bridge. You will NOT have an Internet connection until the AEBS is reconnected.) The AEBS will be blinking yellow.
4. Reconnect the Ethernet cable between the devices (make sure on the M1000 that you are using the connector with the circle icon over it, not the arrow icon).
Within about 60 seconds, the AEBS light went to steady green and the connection to the Internet was restored.
Now I have to see if this is a more stable configuration than the flaky one I had before while using the AEBS as a bridge and the M1000 to do everything.
Does anyone think or know if it will make a difference?
Message was edited by: Bud Shaw

Now I have to see if this is a more stable configuration than the flaky one I had before while using the AEBS as a bridge and the M1000 to do everything.
Does anyone think or know if it will make a difference?
No one can accurately predict in advance what the actual results might be. I've tried both ways with different products and cannot say that one method is better than the other. What works is best.
In theory, it is preferable to have the modem provide the PPPoE connection service since it is the device connected directly to the Internet.
In practice, results vary depending on the service provider, products used, phase of the moon, alignment of the planets, etc.

How to set up DHCP and NAT for QNAP NAS MyCloud service?

I have an Apple AirPort Extreme Base Station (AEBS) attached to my DSL model (no router in the modem). My QNAP NAS is attached via ethernet to the QNAP NAS. My iMac (running AirPort Utility 6.x) is connected to the AEBS via wifi.
I've found several folks who've tried this (and apparently succeeded) but I'm a networking novice and am having trouble making this work. What I did was to go into the AirPort utility and in the networking section configure "DHCP and NAT" and then called out the static IP and MAC address of the QNAP NAS (as well as the ports I'd like to remain open). However, when I did this and applied the changes, my iMac (connected to the AEBS via wifi) could no longer see the AEBS, which then required me to reset the AEBS, re-configure it back to the previous known good conifiguration and start over. After about 5 cycles of this I gave up.
So, what am I doing wrong here? Do I need to go in and configure every device that is going to access the AEBS as static and call out each device's IP and MAC address? (hopefully not, that'd be a major PITA).
Help. Anyone?

When I run diagnostics with the QNAP, here is the reply I get (IPs redacted):
------ NAT PMP Diagnostics ------
initnatpmp() returned 0 (SUCCESS)
using gateway : xx.x.x.x
sendpublicaddressrequest returned 2 (SUCCESS)
readnatpmpresponseorretry returned 0 (OK)
Public IP address : 192.168.xxx.xxx
epoch = 2621
closenatpmp() returned 0 (SUCCESS)
------ UPnP Diagnostics ------
upnpc : miniupnpc library test client. (c) 2006-2011 Thomas Bernard
Go to http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/
for more information.
List of UPNP devices found on the network :
desc: http://xx.x.x.x:60606/8CC1212D0C6D/Server0/ddd
st: upnp:rootdevice
desc: http://xx.x.x.x:9000/TMSDeviceDescription.xml
st: upnp:rootdevice
desc: http://xx.x.x.xx:55000/nrc/ddd.xml
st: upnp:rootdevice
desc: http://xx.x.x.xx:55000/dmr/ddd.xml
st: upnp:rootdevice
desc: http://xx.x.x.xx:49152/4/description.xml
st: upnp:rootdevice
desc: http://xx.x.x.xx:49152/2/description.xml
st: upnp:rootdevice
desc: http://xx.x.x.xx:49152/0/description.xml
st: upnp:rootdevice
desc: http://xx.x.x.xxx:8200/rootDesc.xml
st: upnp:rootdevice
desc: http://xx.x.x.xxx:49152/gatedesc.xml
st: upnp:rootdevice
desc: http://xx.x.x.xxx:49153/gatedesc.xml
st: upnp:rootdevice
desc: http://xx.x.x.xxx:49155/gatedesc.xml
st: upnp:rootdevice
desc: http://xx.x.x.xxx:9000/TMSDeviceDescription.xml
st: upnp:rootdevice
UPnP device found. Is it an IGD ? : http://xx.x.x.x:60606/
Trying to continue anyway
Local LAN ip address : xx.x.x.xxx
GetConnectionTypeInfo failed.
Status : , uptime=3217870016s, LastConnectionError :
Time started : Wed Mar 13 17:04:03 1912
MaxBitRateDown : 7 bps MaxBitRateUp 0 bps
GetExternalIPAddress() returned -3
GetExternalIPAddress failed.
GetGenericPortMappingEntry() returned -3 ((null))

Guest Public Network behind 10.4 Server running DHCP and NAT

I am wondering if it is possible to use APE's guest networking capabilities while still using OS 10.4 server and my DHCP and NAT servers? Is there a way to set the Airport to run its own DHCP NAT and have everything routed correctly?
Or do I still need to use two separate Airports in order to have a public and private network at my home.

I figured it out. I just deiced to run a double NAT configuration

Loosing internet when in DHCP and NAT mode

Hello and thank you for your help. I am a novice.
I am using a 2009 macbook pro 10.7.5 with Mountain Lion
Originally my airport extreme setup was for " DHCP and NAT ".
Since yesterday, I am only able to get internet via Bridge mode, but I have to sign in to my server network first, like a hotspot
This means that my internet timing is limited and the finder shows other personal computers that does not belong to my personal network. My iphone cannot connect to my personal network without signing in the internet service provider website first as well
What happens when I try to update and restart AE to DHCP and NAT, is that I loose internet and get the following message in the airport extreme icon :
"DOUBLE NAT:
This airport base station has a private IP address on its Ethernet WAN port.
It is connected to a device or network that is using NAT to provide IP addresses.
Change your Airport base station from using DHCO and NAT to bridge mode."
Now, I do not want bridge mode
My attempt to solve the problem was resetting AE to factory. This created a new network. The new network appears in the network icon and it is WPA2 personal protected, like the previous one.
I appreciate your time and look foreward to solve my problem with some help in here - thank you again

Originally my airport extreme setup was for " DHCP and NAT ".
If it was, and you had a modem/router or gateway type of device "upstream" on the network, then you created a Double NAT error on the network.
Sometimes, you can get away with this on a simple network, and AirPort Utility does provide the option to "ignore" the error on the network, so the AirPort Extreme will display a green status light.....instead of blinking amber, which signals that something is amiss.
"DOUBLE NAT:
This airport base station has a private IP address on its Ethernet WAN port.
It is connected to a device or network that is using NAT to provide IP addresses.
Change your Airport base station from using DHCO and NAT to bridge mode."
If you want to run in DHCP and NAT mode, you will have a Double NAT error on the network. Click the option to "ignore" the error.
Then, power cycle the entire network. That means powering everything off, waiting a minute, then starting the modem first and let it run a minute or two, then start the next device the same way. Keep starting devices one at a time about a minute apart until the entire network is back up.

Setting up DNS on Xserve when DHCP and Nat ae controlled by windows machine

Trying to set up an Intel based Xserve on an internal network to have 6 other G5's authenticate to. But I am having problems setting up DNS.
This server is being added to a windows network that has DHCP and NAT handled by a different windows machine. I have also assigned the xserve with a static IP address of 192.168.1.XXX Now this server is just going to run a few programs for the 6 macs in the art department. Software Update, Version Cue, Suitcase Server. I have version cue and suitcase server up and running. But I would also like to have the macs authenticate to the server for the updates.
If I type in hostname at terminal I get:
localhost.xserve
and when I type in host 192.168.1.XXX
I get some error about no name aviable or something...
How can I setup simple dns just for the server? Would there be any down falls for having DNS setup on this machine when it is conected to a windowws network?
Please help. Sorry for the long winded explination.

Yes, it's possible. Although I'm no longer favorable towards fake "domains" like .lan or the like.
Besides which (and most people don't know) ".lan" is actually an existant TLD. So it's not so great either.
Set the server to what it's FQDN should be, and set it to answer to & for itself only.
Is everything else internally using ".lan" ? If not you're going to have to point clients to your server strictly by IP alone and while that's fine, this setup is starting to sound just ugly, if not somewhat Frankenstein-ian
But to limit requests you'll have to edit /etc/named.conf by hand.
Google can lead you to the information, there's plenty out there - here's one for example:
http://www.redhat.com/docs/manuals/linux/RHL-9-Manual/ref-guide/s1-bind-namedcon f.html

Trying to get DHCP and NAT to work on Time Capsule

I have a 2TB Time Capsule, combined with a speedtouch 780 wireless router. I have tried to set up the router in bridge mode but don't see the setting for it. Is it allocating the IP of the router to the Time Capsule? If I do that the internet connection is gone.
ISP have shown no support as to how to set this up.
I want to enable this option, so that I can access Time Capsule remotely from the www (when travelling).
Thanks for the help!

One device or the other has to be bridged. The obvious one is the 780 speedtouch. And use PPPoE client on the TC.. the only question is if your ISP supports PPPoE authentication.. not all do. If you only have PPPoA available then you have to bridge the Time Capsule. Remote access via the speedtouch in router and the TC is no problem btw. I have done that myself.
I have tried to set up the router in bridge mode but don't see the setting for it. Is it allocating the IP of the router to the Time Capsule? If I do that the internet connection is gone.
To bridge the Speedtouch go to the main setup page in your browser.. by default 192.168.1.254 but some are still at 10.0.0.138.
Save the current configuration just so you can easily get back.
Then select the configuration under Gateway or Thomson Gateway. On the centre of the page at the bottom is pick a task.. one of which is setup. You can choose bridge as a service or what we used to call template. It should list routed ppp, bridge and perhaps a couple of others. Just pick bridge.. and finish the setup wizard. Then you are done.. the 780 will be in bridge and use pppoe client on the TC.. this is the best setup btw for remote access.
Although it looks slightly different.. here are the pics from my TG782.. which is the next model from 780. The layout is the same even if the colors and graphics are slightly different.
After you pick setup my Thomson gateway you get the wizard.
Remote access setup then depends on which of the above you bridge and how you are trying to access them.. are you trying direct using AFP to the TC.. or using BTMM and iCloud?

Firmware update 7.5.2 is breaking workaround for disabling DHCP server

If you are using the trick described here (http://discussions.apple.com/thread.jspa?threadID=121990) to disable DHCP, you should know that after upgrading to 7.5.3, it will not work anymore. Downgrade to 7.4.2 makes it working again.
If somebody from Apple is reading this (and is interested in feedback, which I doubt, because there's no such option on the Support pages) - would it be possible to add an option to the AirPort configuration which would allow DHCP to be turned off (while NAT stays turned on)? It would be really nice...

Hmm, while typing previous message it gave me the following idea (and it worked)
Since i am using a mac mini as a server ( Debian, sorry ) it also has wlan, i set up the server so both are connected (eth0 / wlan0). Default of the dhcp server is to listen to all interfaces and voila DHCP for the wireless devices.
Hope this can help someone, without the need for downgrading your APE.

Internal DNS server and NAT routing issue.

Hi -- I am not terribly experienced with DNS and I am running into an issue that I can't seem to resolve. My company.com DNS information is hosted by an outside ISP for email, web, etc... but I have configured an A record there to point to the public IP to my mac os x server (server.company.com).
We have a cisco router configured with one to one NAT from the public IP to the internal IP for our server in a 192.168.15.x subnet. The same router is running DHCP and and NAT on that subnet under a different public IP provided by our ISP.
Our server is running DNS with recursion and has a "company.private" zone set up for internal services and machine names. Thus, the server is accessible via "server.company.com" from the outside and "server.company.private" from the private LAN.
The problem is that I would like to be able to access some services simply via "server.company.com" both inside and outside the private network. Now, accessing the "server.company.com" services from the private lan does not work because the name resolves to the external IP and the external IP cannot be used internally due to NAT.
Is there a way to configure my internal DNS server to respond with the appropriate private address when receiving a query only to "server.company.com" and forward requests on for anything else on "company.com"?
I know that I could manually duplicate all entries for our domain from my ISP and host the same entries for internal clients, but it would be much easier to only have our server handle requests for itself. The server is running OS X Server 10.4.11.
Thanks

Is there a way to configure my internal DNS server to respond with the appropriate private address when receiving a query only to "server.company.com" and forward requests on for anything else on "company.com"?
Ordinarily, no. Once your server thinks it is responsible for a zone (e.g. company.com) then it will answer all queries for that domain and never pass them upstream. Therefore you'd have to replicate all the zone data, including all the public records, and maintain them both.
The one possible exception to this (I haven't tried) is to create a zone for server.company.com that has your internal address. In theory (like I said, I haven't tried this), the server should respond to 'server.company.com' lookups with its own zone data and defer all other lookups (including other company.com names since they're not in a zone it controls). Might be worth trying.

Kindly Is it possible to disable DHCP in this product wap4400n ?

Dear Engineers and Technicin,
Good Morning,
Kindly I need support for wap4400n and I did not find it in the user guide and the administration guid.
Is it possible to disable DHCP in this product?
I want the wap4400n Access Point to distribute DHCP from the windows server.
Best regards,
Asad
Refrence:
http://www.cisco.com/en/US/products/ps10052/index.html

I dunno the product, but I might be this ...
http://www.cisco.com/en/US/docs/wireless/access_point/csbap/wap4410n/administration/guide/WAP4410N_Admin_Guide.pdf
page 25 ...
STEP 1 Click Setup > Basic Setup .
STEP 2 From the IP Settings drop-down menu, select one of the following options:
• Static IP Address—Select this option to assign a static or fixed IP address
to the access point.
• Automatic Configuration—Select this option to automatically configure
the IPv4 network settings of the access point using a DHCP server on your
network. Also select this option to automatically configure the IPv6 network
settings of the access point using an IPv6 RADVD device enabled on your
network.
But i think it is just a brigde, hence your DHCP server is external to the device.
So you have nothing to disable so to speak:
From the Frequently Asked Questions, in the above PDF:
Q. Can the access point act as my DHCP Server?
No. The access point is nothing more than a wireless hub, and as such
cannot be configured to handle DHCP capabilities.

Cannot disable DHCP on ACS

I cannot disable DHCP on a Cisco Secure ACS. I am consoled into the device and run "set ip", choose "yes" for static IP and enter my IP information. However, after save, network test, etc... DHCP is still enabled and grabs an address on reboot. Anyone seen this or have ideas???

Hi, I had a similar problem on the Appliance (Ver 4.00). After the initial configuration I had to reboot and then re-enter both the IP and hostname. You also have to make sure that when you set up initially that the device is connected to the network. The re-entering the IP address was a TAC recommendation. Hope this helps.

DHCP and NAP Event 1070

Server 2012 DC1, role: AD, DNS, DHCP and NAP. Another Server 2012 DC2 as secondary with same roles, and as hot stand by for DHCP.
When NAP is enabled on all scope, event 1070 "Iashlpr initialization failed: The DHCP service was unable to access path specified for the audit log. , so DHCP server cannot talk to NPS server. It could be that IAS service is not started." comes
up. When this error shows up, doing Replicate Failover Scopes from the MMC will crash it. Running Invoke-DhcpServerv4FailoverReplication will generate "The remote procedure call failed" error.
NPS NAP DHCP Policy exists, with generic Full Access and no restriction. Both DC's are in "RAS and IAS Servers" group. The audit path exists and can be accessed. Disabling NPS on all scopes seem to return to normal.
This seems to be a bug or something amissed. How can I get enable NAP on all scope without DHCP server throwing an error?

Hi,
Have you installed any secruity software on the server?
If yes, please disable it and try again.
Also, what's the result of "sfc /scannow"?
Besides, what's the start type of the NPS service?
To set the NPS service to start automatically and start the NPS service, please follow the steps below,
At the NPS server click Start, click Run, type
services.msc, and then click OK.
Double-click Network Policy Server.
On the General tab, in the Startup type
box, click Automatic, and then click Apply.
Click Start, wait for the progress bar to complete, and then click
OK.
On the File menu, click Exit.
Best Regards.
Steven Lee Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected]
No errors on scan, it did not find integrity violations. Service is already on auto and started.
I thought maybe the firewall is blocking it, but this is the same machine that runs AD/DHCP/NPS role.
Where this audit log for NPS that the DHCP is looking for?

Disable DHCP Proxy per WLAN - WLC v7.2

I have a DHCP server on a WLAN that does not support Cisco's native proxy mode. I need to use DHCP bridge mode for that WLAN only.
How do I disable DHCP Proxy and switch to DHCP bridge mode for one WLAN ?
Thanks

Hello Stephen.
How is this behaviour in 7.5? It's weird because in the individual interfaces you might change the value, but it doesn't get accepted. So it still seems that it's a global setting... but then: why showing this item to be changed on each interface?
Kind regards,
Flavio.

DHCP and bootcamp....

Hi,
Have an X serve running server 10.4.7, and a macbook pro running bootcamp, along with other mac machines.
The macbook pro running bootcamp will not pull in an IP address from the xserve running dhcp, but will if I disable DHCP on the server and turn the service on via a router?
Any ideas?

If you mean when running Windows XP under BootCamp you woun't get an IP from the OS X DHCP try filling in "search domains" in DHCP settings in SA on the server.
Has worked before with Windows machines not getting an IP from OS X server DHCP.

Cisco 1841 with 2 public WAN IP's and NAT

OK currently the network is setup as follows:
Zyxel SHDSL Router --> Linksys Router --> 10/100 Switch --> PC's
x.x.x.145/28__________x.x.x.146/28____________________192.168.1.0/24
The Linksys router is running inbound one-to-many PAT (eg. x.x.x.146:80 --> 192.168.1.10:8080)
I'm looking to replace the setup with a Cisco 1841 router. Now normally I would configure the DSL interface as unnumbered to the internal LAN interface and use my public IP addys on this segment then passing through a PIX to NAT into private IP addys.
The problem I have is I want the 1841 to be an all in one box performing DSL, Firewall and NAT functions.
Now I thought I would configure the DSL as unnumbered to FastEthernet0/0 adding a secondary IP address of x.x.x.146/28. Interface configured as NAT outside.
Interface FastEthernet0/1 was configured with 192.168.1.1/24 with NAT inside and connected to the switch.
The problem was is that the FastEthernet0/0 interface line protocol was down as there was no need to connect it to anything.
I then tried assigning the dialer interface a static IP of x.x.x.145/28 and x.x.x.146/28 as a secondary IP running NAT outside. I tried again but during boot up the router said you cant assign a secondary IP to the dialer interface.
So my question is, how would you recommend setting up the interfaces to enable the router to have both x.x.x.145 and 146/28 as public IP's and NAT x.x.x.146:80 to 192.168.1.10:8080?
Any help much appreciated.

Answers:
1) DSL is terminating in the 1841 on a SHDSL WIC
2) No
3) IP is negotiated
4) Below is a config which I believe should work. Any recommended amendments?
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
hostname trackgw
boot-start-marker
boot-end-marker
no aaa new-model
resource policy
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
ip subnet-zero
ip cef
no ip dhcp use vrf connected
username cisco privilege 15 secret xxx
controller DSL 0/0/0
mode atm
line-term cpe
dsl-mode SHDSL symmetric annex B
line-rate AUTO
interface FastEthernet0/0
ip address 192.168.1.1 255.255.255.0
ip nat inside
duplex auto
speed auto
interface FastEthernet0/1
no ip address
duplex auto
speed auto
interface ATM0/0/0
no atm ilmi-keepalive
pvc 0/38
encapsulation aal5mux ppp dialer
dialer pool-member 1
interface Dialer1
ip address negotiated
ip nat outside
encapsulation ppp
dialer pool 1
dialer-group 1
no cdp enable
encapsulation ppp
no cdp enable
ppp authentication chap callin
ppp chap hostname username
ppp chap password 0 password
ppp ipcp dns request
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer1
ip http server
ip http authentication local
ip nat inside source list nat-acl interface Dialer1 overload
ip nat inside source static tcp 192.168.1.10 8080 x.x.x.146 80
ip access-list extended nat-acl
permit ip 192.168.1.0 0.0.0.255 any
dialer-list 1 protocol ip permit
no cdp run
control-plane
line con 0
logging synchronous
login local
transport output all
line aux 0
transport output all
line vty 0 4
privilege level 15
login local
transport input telnet
scheduler max-task-time 5000
end

E2500 disable DHCP and NAT

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