LWAPP AP and DHCP option 43

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• LWAPP AP - DHCP Option 43

  Hello

  I'm working to deploy a group of 1242AG APs with a 12-4402. I'm looking to use LWAPP and run the WC in mode layer 3 with deployed on a different subnet access points.

  I tried to assign an address (and 43 DHCP option for the IP address of management WC) via the server DHCP of Cisco IOS, but so far this has not been successful.

  I was unable to provide option DHCP 43 to the APs. Here is the configuration that I tried to use.

  Router DHCP configuration

  dhcp WLAN IP pool

  network 192.168.1.0 255.255.255.0

  Option 43 f1:07:c0:2e:a8:2e:01:2e:c8 hex (TLV = 241 7 192.168.1.200)

  .

  Can someone help me maybe?

  Jon thx.

  Try this...

  IP dhcp pool

  network

  default router

  DNS server

  the option 60 ascii 'String VCI'

  Hex option 43

  ----------------------------------------

  assuming that your TLV 192.168.1.200 management interface

  ex: option 43 f104c0a801c8 hex (without colon)

  Channels VCI-

  Cisco Aironet 1130 series = "Cisco AP c1130"

  Cisco Aironet 1240 series = "Cisco AP c1240"

  Cisco Aironet 1200 Series = "Cisco AP c1200"

• The EA8500 supports DHCP Option 60/61?

  Hello

  I was wondering the EA8500 can be used with sky fiber Pro service to the United Kingdom? Obviously I would need to extract the username of the SR101/102 and then intend to use the modem Openreach VDSL2 with the EA8500 (btw brilliant router) but after some research, I understand the router needs to support DHCP option 60 & 61 in order to connect with the sky. The EA8500 does it take?

  See you soon

  psycho

  Linksys engineering has notified me that the EA8500 is not compatible DHCP Option 60/61.

  Filed a feature request in support of these DHCP Options. Lets hope it is approved and included.

• Question of DHCP Option 50

  I understand that the DHCP 50 option is for the customer asked the IP address.

  I have 3 questions about this...

  1. the DHCP server on the router maintains the MAC--> IP mapping during 24 hours right?

  What happens if I ask a non assigned a different IP address in the 24 hour window? My request will be granted each time?

  What happens if I ask for an IP address not assigned different after the 24 hour window? I guess that my request will be granted every time in this case.

  2. always in the window of 24 hours, if the requested IP address is leased to another network device, but the device has long been disconnected,

  I get the requested IP address?

  2 do all versions of routers support this option?

  Depends on the implementation of the DHCP server. The RFC does not say how to handle 50 option. The DHCP server can but should not affect the requested IP address. It can completely ignore this option.

  So:

  How long the server retains the mapping? Depends on the server. It may or may not remove the mapping after the lease has expired (which I assume is the 24 hours, that you reference).

  Ask a different IP address during the valid lease? Depends on the server. The server may grant each time. Another server can refuse each time.

  I think it is more common to not to grant the request. Internally the DHCP server manages static IP mappings and pool all the same except the static IP mapping has an unlimited lease duration. As long as a request from a computer comes that already has a mapping (static or pool) he always attributes known IP address and the other does not.

  After the expiry of the lease? Depends on the server. A DHCP server keep the maps even after the expiry of the lease. The simple purpose of this is that if you have a fairly large pool that gets not exhausted you basically assignments to static IP addresses to DHCP clients. Even if a client releases the lease (because the computer is stopped) or the lease expires, he will always keep this information. Next time (for example, you turn on the computer after the weekend) it will always go to the same IP. But again, it is up to the implementation of the server. Other servers follow other policies and do differently.

  Address IP lease request? N ° never. The DHCP server must not assign an IP address that has been rented elsewhere. There is no reliable way to make sure that the DHCP server as other devices is indeed off. If a unit is stopped, it must release the DHCP lease. If it is not the case, the IP address is blocked until the lease expired. The only case that a transfer could occur is if the DHCP server has been reset and lost its DHCP lease table. In this case, the DHCP server does not know before granted leases.

  Supported? All DHCP servers must be able to receive DHCP requests include this option. It is the implementation of the DHCP server if the DHCP option is really accepted or not. Some servers may completely ignore this option.

• Cisco SPA with problem of DHCP Options 66

  Dear all,

  I have a problem of my phone Cisco SPA for the autodeploiement.

  If I manually enter the page configuration and paste "[- pwd - password user uid] http:///dms/def/spa$PSN.cfg" in the profile rule. Everything works perfectly.

  However, we would like to do in the provision of zero touch, I add the "[- pwd - password user uid] http:///dms/def/spa$PSN.cfg"DHCP Options 66. " The SPA phone seems impossible to get the 66 Options parameter. It shows that "/ spa$ PSN.cfg" in the rule of profiles.

  I'm sure that the DHCP server works perfectly.

  Can anyone help on this?

  Kind regards

  Desmond

  You cannot use the custom during initial deployment (zero touch) password. DHCP can be used to deliver key to the device in this way.

  Ok. What are the options you have?

  You my use of the configuration file, compiled with SPC type -target option. It encrypt the file by using the password from each device Mac so you need no password given to the device - device can calculate the password required their Mac. It provides just basic security level - insensitive user, like me, know the algorithm used for password generation so that it can calculate the password and decrypt the file.

  You can use HTTPS with mutual certificate authentication to deliver XML or SPC configuration form. All phones have the unique client certificate, then you can be sure that the request has been issued by the unit. It offers a high level of security.

  There are also a few other possibilities, but disclosed so that information on the goal you want to hit, so I can't list.

  Just note that DHCP will meet anyone, in addition, the answer may broadcast (therefore handed to anyone, even without prior request). If you deliver critical data via DHCP, you can consider them publicly available. Security resulting is without security.

• Microsoft DHCP - Option 43 Setup Server

  I have the scope properly configured insofar as the 241 Option with Option 43 and the VCI in for both the series 1130 and 1200 AP however, how can you do this job if your subnet has 1200 and 1130's inside? Basically if I have two 241 options set, the 1130 comes by first allowing the 1130 s associated, but not the 1200. If I remove the Option 241, the associated 1200 1130. Basically, how can I get both working properly the scope?

  Thank you

  Raun

  Hi Pierre Roussy.

  Here is some additional info;

  This section contains an example configuration DHCP Option 43 on a Windows 2003 Enterprise DHCP server for use with the lightweight access points. For other implementations of DHCP server, see DHCP Server documentation to configure DHCP Option 43. In 43 of the Option, you must use the IP address of the management interface of the controller.

  --------------------------------------------------------------------------------

  Note that DHCP Option 43 is limited to a single access point type by DHCP pool. You must configure a separate DHCP pool for each access point type.* *.

  This doc.

  http://www.Cisco.com/en/us/docs/wireless/access_point/1200/installation/guide/120h_g.html

  The DHCP OPTION 43 to light Cisco Aironet Access Points Configuration example

  http://www.Cisco.com/en/us/Tech/tk722/tk809/technologies_configuration_example09186a00808714fe.shtml#T1

  I hope this helps!

  Rob

• DHCP option to set the controller IP for Access Points (Airespace)

  Hello world.

  Does anyone have an idea to specify the controller using DHCP options.

  We use:

  -Controller AIR-WLC4404-100-K9

  -AP-1010-AP-5312 poinst access

  -Server dhcp DHCPd ISC 3.0.1

  Newspapers on DHCP server indicates that access points become the IP addresses, but the controller information are not "read" / "included".

  In the productive environment, controllers will be redundant.

  So far, we couldn't sucsessful with eighter of these configurations:

  Block i. using VTL:

  http://www.Cisco.com/en/us/products/HW/wireless/ps430/products_quick_start09186a00805100f5.html#wp49287

  subnet 10.50.107.0 netmask 255.255.255.0 {}

  option subnet-mask 255.255.255.0;

  routers option 10.50.107.1;

  option domain-name-servers 10.20.51.11, 10.20.51.12;

  option vendor-class-identify Airespace 1200;

  the option dhcp-client-identifier 0xf1, 8, 10.20.51.254, 10.20.51.249;

  DDNS-updates

  DDNS-rev-domainname "in - addr.arpa.";

  DDNS-domain name "xxyy.local.";

  default-lease-time 28800;

  range 10.50.107.101 10.50.107.200;

  }

  II. using the DHCP Next-Server option:

  subnet 10.50.107.0 netmask 255.255.255.0 {}

  option subnet-mask 255.255.255.0;

  routers option 10.50.107.1;

  option domain-name-servers 10.20.51.11, 10.20.51.12;

  Next-server 10.20.51.254;

  III. use of Header Information Option 43 described such in DHCP Manual:

  WLAN-apc code 60 option = text;

  ip address wlan code option 43 = controller;

  subnet 10.50.107.0 netmask 255.255.255.0 {}

  option subnet-mask 255.255.255.0;

  routers option 10.50.107.1;

  option domain-name-servers 10.20.51.11, 10.20.51.12;

  option wlan-apc "Airespace.AP1200"

  option wlan controller - 10.20.51.254;

  IV. using header to the DHCP server information:

  class "-classes of suppliers ' {}

  vendor-class-identifier option match; }

  {"Airespace.AP1200" subclass "-classes of suppliers '}

  Next-server 10.20.51.254;

  }

  Does anyone have a working (using the SAI?) configuration or advice?

  Best regards

  Jarle Steffensen

  Yes, finally got it work.

  I just followed this guide:

  http://www.Cisco.com/univercd/CC/TD/doc/product/wireless/control/C44/DEP.PDF

  and it worked the first time :)

• RV042 150 DHCP Option

  Hi people

  I have a RV042 VPN router with the latest firmware v4.2.1.02.

  This router is connected to the main site through a VPN Tunnel.

  Now, I want to configure a DHCP Option if I can put an IP phone

  behind the RV042. The IP phone should receive an IP by DHCP

  the RV042 and of course, the IP address of the Director with the

  Option of 150.

  I can configure DHCP and it works fine but I can't find where I

  or can configure Option 150.

  Does anyone know ho it works?

  Thank you for your help...

  Kind regards

  Pascal

  Unfortunately RV042 isn't compatible DHCP Option 150.

• SGE2010 - traffic relay and DHCP configuration

  Hei

  We bought just a switch SGE2010 we want to use to replace the switches in the control panel of our office. So far I managed to access the switch and assigned a static ip.adress on our net, but I can't get to our entry point switch relay traffic. I have a test machine that is configured with a static IP as well and tried the ok sign, but as soon as I put the switch between traffic is not relayed.

  The idea was to use this switch as a DHCP as well. But I thought it would be a start to get at least the traffic relayed before starting the dhcp part.

  Only configuration settings I have done factory settings are the following: (note that the IP is slightly adjusted, but consistent for reasons of confidentiality)

  Configuration of the IP4

  1. Assigned to a static ip address: 95.59.69.148
  2. Assigned a subpattern: 255.255.255.192
  3. Assigned to a user-defined gateway: 95.59.69.129

  DNS configuration

  1. Assigned to an ip address dns address: active 95.59.0.100
  2. Assigned to a dns ip address: 95.59.0.200

  All these settings are the default settings that we use when we assign a server with a static ip address, so it is not a pick up of our filtration dhcp server. So my main question is why on earth isn't it relay traffic?

  In addition, we are interested to kill the former (with stones, I hope) dhcp server and dhcp on the sge2010 configuration. The current dhcp is an operating system. X dhcp server (Yes a mac) with the following configuration:

  • (Dynamic ip) subnet
    From ip: 95.59.69.179
    Ending ip: 95.59.69.190
    Subnet: 255.255.255.192
  • Router ip: 95.59.69.129
    Rental time: 3 hours
  • The range 95.59.69.130 to 95.59.69.149 we set up manually on the servers, hardware, etc.
  • DNS server: 95.59.0.100 & 95.59.0.200
    Default search domain: No. - dns - available.example.com
  • And then we have a group of static mappings to Mac-addresses
    ip address: 95.59.69.150
    IP: 95.59.69.178

  I tried to see in the configuration where I could the mappings static spesify range etc, but I can't say it got me anywhere. So my second question is how to install a server dhcp of Eric as a designated above?

  It's nice to finally convince the CEO to move the dhcp to a better metal, but it's not as nice having a hard time setting up. I would apprecitate every possible leeds and suggestions since I'm kinda stuck.

  Thanks in advance

  Rafn.R

  Hello

  My SGE2000P forwards DHCP requests on my DHCP server.

  I used my default VLAN1 as an interface routed to unicast request DHCP relay on my server (router ISR UC520) that resides on that VLAN 1.

  My interface Vlan 1 on my SGE2000P has an IP 192.168.10.254.

  My gateway address for potential hosts in VLAN 2 IP will be the ADDRESS IP I AI ASSIGNES to VLAN 2, because the PC or the IP hosts connected to VLAN2 will use IP VLAN2 interface as the gateway. It's just how it works!

  Hosts of PC on VLAN 2 need of a default route and they use the IP I assigned to VLAN2 as their next jump out VLAN2 on the real world.

  This address can be seen below.

  

  DHCP relay is enabled with the option 82

  

  I chose VLAN2 as an interface VLAN, as shown below.

  

  I have two ports not signposted in the VLAN2, and I joined an IP host to G1 so that I can test the DHCP relay.

  

  I get the following debug output from my dhcp server, so I know the relay is working.

  002624: 19:40:08.575 Dec 5: DHCPD: looking for expiry of the leases.

  002625: 19:40:58.408 Dec 5: DHCPD: DISCOVER notification to:

  002626: 19:40:58.408 Dec 5: DHCPD: htype 1 CHADRR 0025.84d8.d008

  002627: 19:40:58.408 Dec 5: DHCPD: id remote 020a0000c0a80a0101080001

  002628: 19:40:58.408 Dec 5: DHCPD: id circuit 00000000

  002629: 19:40:58.408 Dec 5: DHCPD: see if there is a specified internal pool class:

  But I must confess that I have opened a case on it with the Small Business Support Center, because I think I can see something wrong on my DHCP server debugging.

  But the key is that I see the router WAN/DHCP server, see the query from DHCP.

  The only way to the broadcast DHCP requests can get to the DHCP server, if the switch SGE2000P takes these DHCP broadcast requests and unicast these or relay to my server DHCP IP address 192.168.10.1.

  So in other words he tries to relay DHCP.

  I would ask you to please check the SGE2010 Administrator's guide because it clearly shows how to configure the DHCP on the SGE2010 relay.

  Even if the screen capture shows and the old version of the code below.  I have day my SGE2000P tonight at the generally available (GA) version of the code.

  

  Just outa interest, if you telnet to the switch, is your mode of layer 3 or Layer 2 switch.

  I can also say from your screenshot that your uplink ports are in overlay mode.

  Maybe if you don't use stacking, you can set your switch to the layer 3 mode and standalone mode

  Best regards, Dave

• Using Cisco AP as router and DHCP server

  I'm a newbie in the technology of Cisco wireless. I have a lot of Cisco wireless access point. One of them (1142AG-K9 Cisco) I want to set them up as a DHCP server and will forward traffic to the public ip address as it will route the traffic to 203.82.203.50 (Ip provided by ISP) and will lease ip as associated devices 192.168.10.0 pool.

  Even though I know that it is possible using a router on the AP. But it is possible using a single access point?

  If so, how?

  Help, please.

  Hi, the AP cisco are just basic layer 2 devices such as a hub or Layer 2 switch, it does not any layer 3 as a wireless router.

  The Cisco access point supports to have a VLAN or subnet configured or more VLANS or subnets and will pass all traffic to a layer 3 devic so that traffic can be routed to the need.

  The Ap can't stand to have an addrees ip configured on the bvi1 for the management.

  Also the build in the ap dhcp option is very limited and will only know the ip address to wirless clints that connect to it on an ssid linked to its management interface in this case that the bvi1 and all them VLAN othe or subnets shall not use an external dhcp server.

  Sent by Cisco Support technique iPhone App

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  I'm trying to upgrade to Quicktime Pro in the Quicktime 7 application and he continues to send me to this information page unrelated to an upgrade or buy and download option. How to upgrade my Quicktime 7 Player Quicktime 7 Pro?

  Unless you already have a QuickTime Pro key, you can't. Apple stopped selling them.

  If you do open it, choose recording in QuickTime Player 7 menu and put your key.

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  I want to download free applications, but it doesn't let me do it cause I have a problem with my payment, I try to remove my debit card and the option did not appear, I can't choose no for the payment, what can I do? This happen after I bought some coins for a game

  You must settle the debt until you can download something else of the podcast episodes on the iTunes Store or select None as the payment option.

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• Java has been blocked because of the threat, I did the update, and other options to reactivate it ie.manual update reinstalls still websites like YouTube always used to load up. Works great in Chrome & IE!

  Java has been blocked because of the threat, I did the update, and other options to reactivate it ie.manual update reinstalls still websites like YouTube always used to load up. Works great in Chrome & IE!

  Your list of plugins in "Details of the system more" Watch 1.6.0_31 of next generation Java plug-in for browsers Mozilla for Java should not be blocked.

  Could you post a link to a Web page where Java does not work for you? YouTube uses the Flash, not Java. Here is a list of the test pages of Java that you can try to verify that Java works, of http://kb.mozillazine.org/Java#Testing_Java

  • Test of your Machine (JVM) Java virtual on java.com.
  • Java information - BrowserSpy.dk
  • Tester of Java - test to javatester.org pages will tell you if your web browser is enabled for Java and, if necessary, the Java version.
  • Java Plugin detector

  Moreover, I see in your list of plugins you also the VLC media player Plugin Web 2.0.0 so, it is possible that the VLC plugin is causing a conflict if YouTube or other videos do not work. See Fix common audio and graphics problems (you may have to disable the VLC Media Player plugin in the Add-ons-> list of Plugins for some media to play).

• In the Menu background, recently closed recently closed tabs and Windows Options are not enabled

  Recently closed recently closed tabs and Windows Options are not enabled.
  I tried to reinstall and upgrade to firefox v4 and nothing has changed.

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• My "file, editing, display, history, Favorites, tools and help" options are hidden, I do not know how to make them visible.

  My "file, editing, display, history, Favorites, tools and help" options are hidden, I do not know how to make them visible.

  This has happened

  Just once or twice

  == My father-in-law messed with settings and downloaded a toolbar.

  Press the Alt key to display the Menu bar, then open view > toolbars and select menu bar, so it has a check mark.