RV042 150 DHCP Option

Similar Questions

• 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.

• 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"

• 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 :)

• vShield Edge DHCP Options

  Hi guys,.

  I play a vCHS TPOC. I was wondering if it was possible to set any other advanced DHCP option on the edge of vshield like WINS etc?

  As far as I can see there is not, but thought I would ask.

  Concerning

  D

  It is not possible today.

  Is WIN what you are looking for? Or other options as well?

  Thank you.

• LWAPP AP and DHCP option 43

  Hello

  I have configured option 43 on server dhcp, restarted 1131 AP, but AP still try to resolve the CISCO-LWAPP-CONTROLLER instead of the ip provided by dhcp. How can I debug this?

  Router config:

  IP dhcp pool seg20

  F104.0a0f.64fd hexagonal option 43

  Thanx.

  A CUWN AP, through all the methods of discovery.  So it always attempts to use DNS, 43, dissemination of L3, L2 broadcast option.  Once it was discovered, then it will be unicast the join query.

  Normal/expected behavior

• A SG300 Cisco SMB Switch will support DHCP Option 156?

  Hi all

  Is it possible to configure the 156 on a Sx300 Cisco DHCP scope option? Its for Shoretel IPT... I noticed that the option is not available through the user interface. But I tried the other day on a switch with the latest firmware via the CLI and it almost worked but I couldn't switch to accept the exact string that I needed... For example below (the Cisco classic):

  the option ascii 156 'ftpservers = 172.16.250.21, country = 7, language = 4, layer2tagging = 1, vlanid = 100 '.

  Guidance gratefully received...

  Thanks in advance

  Matt

  Hi Matthew, the options supported on the DHCP server are as follows:

  1,3,4,6, 12, 15, 44, 46, 50, 51, 53. 54, 55, 56, 58, 59 and 61.

  -Tom
  Please mark replied messages useful

• DHCP Option 82 SG300, decipher the bytes circuitid

  Hey guys,.

  I can't know the meaning of the bytes in Option82 that send SG300 of Cisco switches. The switch is in mode of l3, and I relay dhcp installation and works very well.

  By looking at the packet capture, the switch always send this is the MAC address as optional 82 remote-id:

  Suboption option 82: (2) Agent remote ID

  Length: 8

  Remote agent ID: 000634bdc8xxxxxx

  34:BD:C8 is a YES registered to Cisco Systems.

  I can't decipher the circuitid. The last bytes of couple have something to do with the port:

  Port 1:

  0131 0004007d

  Port 2:

  0004007d 0132

  Port 3

  0004007d 0133

  Port 4

  0004007d 0134

  Port 49:

  0004007d 0161

  Port 50:

  0162 0004007d

  But what makes me scratch my head is really byte would be ' after the 0004007, call it the mystery figure. This system of byte to have a meaning related to the type of device connected immediately. When I connected to a computer, there's a ' he. When I connect an aastra phone, I get a '8'. When I connect a Ubiquiti networks AP, I got a '7'.

  I can't understand the numbering for the ports scheme or the meaning of the mystery figure. Any help is appreciated!

  Hi Jonathan sub option 2, your example D is the identifier of the node.

  Seeing the variable by type of connection, I give it a safe assumption that it is wordy padding type void 1.

  The detailed format for package cushion should contain

  Sub option

  length

  node identifier

  port type

  Number of the interface

  ID of the VLAN

  For the format of normal buffer it should contain

  Sub option

  length

  circuit

  length

  ID of the VLAN

  Number of the interface

  -Tom
  Please mark replied messages useful

• Apply the Option DHCP SPA100 Series 60

  Hello

  Is there any plan to apply the DHCP Option 60 (class id of the seller) in the series SPA100 materials in future FWs? CISCO SPA5xx series already has this option for implementation.

  Kind regards

  Josep.

  I do not know what exact device you hear "Materials of the SPA100 series", but in SPA112 and SPA122, it is already implemented. I use it for a long time. See the package caught:

  0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, request

  ...
  Hostname Option 12, length 6: "SPA112."
  Provider Option 60, length 12 class: "CISCO SPA112.

  ...

  Don't forget to mark the thread as answered if it answers your question...

• Defining a TX9000 back to DHCP

  Hi all.

  I have a TX9000 which currently has a static IP address. I want to set the system to DHCP. I tried to put unity to DHCP through the web interface, but when I click on Apply I get taken back to the login page.

  Does anyone know the CLI command to replace the TX to use DHCP?

  Haydn,

  The command would be

  define the complete IP dhcp network

  or

  set IP dhcp network mixed [IP] [mask] (if you want to use DHCP option 150, but a static IP address)

  -Tyler

• DHCP wireless

  I have just taken the reins of a new wireless solution. Currently, they have only a WLAN and implement the second for customers only, so they have access to the internet and no device internal.

  The controller is an AIR-WLC52 4.2.61.8 running.

  All DHCP info points to a router on the site, but when I check the DHCP of the router links, they are not the DHCP pool that the WLC is distributing...

  The config on the WLC:

  192.168.144.250 ap-handler interface addresses 255.255.255.0 192.168.144.254

  interface of management to address 192.168.144.249 255.255.255.0 192.168.144.254

  address of the virtual interface 1.1.1.1

  AP-handler interface dhcp 192.168.144.254 elementary school

  management of dhcp primary interface 192.168.144.254

  WLAN create 1 ReduserReduser

  WLAN create 2 RedGuest RedGuest

  Global custom web WLAN turn 2

  WLAN qos 1 Platinum

  Disable session-timeout 1 WLAN

  Disable session-timeout 2 WLAN

  WLAN wmm let 1

  WLAN wmm let 2

  WiFi wpa security disable 1

  WiFi wpa security disable 2

  ACCT Serveur_RADIUS WLAN disable 1

  ACCT Serveur_RADIUS WLAN disable 2

  WiFi security wep key-static enable 1

  WiFi security wep key-static turn 2

  -Other - or ITU (q)
  static-key wep security WLAN 1 shared key authentication

  wep authentication static-key WLAN security shared key 2

  WiFi security static wep - the encryption key 40 1

  WiFi security static wep - the encryption key 40 2

  turn off the WiFi security wpa 802 akm. 1 x 1

  WiFi wpa psk akm security enable 1

  WLAN dhcp_server 2 required 192.168.144.254 required

  The setup of the router:

  interface GigabitEthernet0/0
  Description * off management *.
  IP 194.105.164.249 255.255.255.248
  IP access-group FIREWALL_IN in
  NAT outside IP
  IP virtual-reassembly
  automatic duplex
  automatic speed
  card crypto IPSec_vpn
  !
  interface GigabitEthernet0/1
  Description * physical connection to 3560-SW1 *.
  no ip address
  automatic duplex
  automatic speed
  !
  interface GigabitEthernet0/1.2
  Description * DATA *.
  encapsulation dot1Q 2 native
  IP 192.168.144.254 255.255.255.0
  IP nat inside
  IP virtual-reassembly
  !
  interface GigabitEthernet0/1.100
  Description * VOICE *.
  encapsulation dot1Q 100
  IP 192.168.244.254 255.255.255.0
  IP nat inside
  IP virtual-reassembly
  H323-gateway voip bind port 192.168.244.254

  IP VOICE dhcp pool
  network 192.168.244.0 255.255.255.0
  router by default - 192.168.244.254
  option 150 ip 192.168.244.254
  !
  IP dhcp pool B 88, 6
  the host 192.168.144.3 255.255.255.0
  0100.1ef7.2788.b6 client identifier
  router by default - 192.168.144.254
  option 150 ip 192.168.244.254

  !

  dhcp WLAN IP pool

  network 192.168.250.0 255.255.255.0

  router by default - 192.168.144.249

  !

  The connections on the router only show links for equipmen 192.168.244 voice and one for the host 192.168.144.3:

  IP address customer_id / expiration Type of rental
  Hardware address.
  Username
  192.168.144.3 infinite manual 0100.1ef7.2788.b6
  192.168.244.1 0100.1ef7.278f.0c May 13, 2011 04:27 auto
  192.168.244.2 0100.1ebe.921c.f6 May 13, 2011 03:31 automatic
  192.168.244.3 0100.1ef7.2788.bd May 13, 2011 03:31 automatic
  192.168.244.4 0100.1ef7.278f.80 May 13, 2011 03:31 automatic
  192.168.244.5 0100.1ebe.921e.19 May 13, 2011 03:41 automatic
  192.168.244.6 0100.1ebe.921f.b0 May 13, 2011 03:31 automatic
  192.168.244.7 0100.1ef7.2788.b6 May 13, 2011 03:31 automatic
  192.168.244.8 0100.1ef7.278f.54 may 13, 2011 03:32 automatic
  192.168.244.9 0100.1ebe.921d.e6 May 13, 2011 11:02 auto

  There are an average of 50 clients who use wireless right now for the 192.168.144.x address. So I guess it will be on a different server on the site?

  How is the controller knows how to get to this unknown DHCP server?

  How can I get my new WLAN comments to point correctly to the router to 192.168.144.254?

  When you run a debugging dhcp, I see DHCP messages do not:

  14:08:24.589 12 may: DHCPD: no subnet configured for 192.168.144.63.
  14:08:24.589 12 may: DHCPD: see if there is a specified internal pool class:
  14:08:24.589 12 may: DHCPD: htype 1 CHADRR 40a6.d9c7.437a
  14:08:24.593 12 may: DHCPD: id remote 020a0000c0a890fe01000002
  14:08:24.593 12 may: DHCPD: id circuit 00000000
  14:08:24.593 12 may: DHCPD: there is no pool for 192.168.144.254.
  14:08:26.633 12 may: DHCPD: see if there is a specified internal pool class:
  14:08:26.633 12 may: DHCPD: htype 1 CHADRR 0017.427a.c75f
  14:08:26.637 12 may: DHCPD: id remote 020a0000c0a890fe01000002
  14:08:26.637 12 may: DHCPD: id circuit 00000000
  14:08:26.637 12 may: DHCPD: there is no pool for 192.168.144.254.
  14:08:36.529 12 may: DHCPD: no subnet configured for 192.168.144.63.
  14:08:36.529 12 may: DHCPD: see if there is a specified internal pool class:
  14:08:36.529 12 may: DHCPD: htype 1 CHADRR 40a6.d9c7.437a
  14:08:36.529 12 may: DHCPD: id remote 020a0000c0a890fe01000002
  14:08:36.529 12 may: DHCPD: id circuit 00000000
  14:08:36.529 12 may: DHCPD: there is no pool for 192.168.144.254

  Thought maybe better to assign pools on the WLC herself, she can't see how to do this. I can't on the version of the software that I use?

  Any help would be greatly appreciated

  .

  lol Option 43 is for Access Points know ip address WLC in case they don't sit in the WLC subnet. Customers don't care about dhcp options.

• WRT320N dhcp dynamic

  Hello

  I have a linksys WRT320N router. I want my computer to have an internal IP address fixed. Can my router assign an IP address to my computers MAC address? I've known that I can assign a fixed IP address in my settings TCP/IP (Windows Vista). But when I do it is not possible that my router will assign THAT IP address to another device (when my computer is off)?

  Another solution would be to set up a fixed IP on all my devices...

  Thank you

  Jan

  He solved. my router has a 'Réserve DHCP' option. This will do the trick.

  You can also use xxx.xxx.xxxx.50 to xxx.xxx.xxx.100 for dynamic IP address IP address, and then set the other devices to a fixed IP address. in this way it cannot be any conflict of IP