Change DHCP Scope To Match Corporate IP Scheme

Oct 3, 2012

I change DHCP scope to match corporate IP scheme Friday came back To discover only some stations picked up new leases from the scope.

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Cisco :: 5508 Is There A Way For Internal DHCP Scope To Release Scope Addresses

Apr 7, 2013

DHCP scope is configured on a WLC 5508.I'm checking if there' a way for WLC to clear the dhcp leasing when a user is diconnected from wireless?

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DHCP Assigning Address Outside Of Scope

Jul 1, 2012

I am using Windows 2011 SBS and Windows 7 clients.My server has a DHCP range of 192.x.x.150 to 192.x.x.199 and all other I.P. addresses are static. On a workstation located at I.P. 192.x.x.13 I am seeing an address conflict.When I perform an "nbtstat -a 192.x.x.13" command from the server I am given the logical computer name of a staff members personal laptop.Investigation of the laptop reveals that it is set to DHCP, and clearly the address of 192.x.x.13 is outside of my servers DHCP scope, so this I.P.should never be assigned, let alone in duplicate.I Google this topic before posting, and it was suggested that IPv6 could be having an adverse affect. I determined this because I performed a ping on the laptop and only got a MAC address back rather than an I.P. address.However after unticking IPv6, and rebooting, the laptop is still causing havoc.I can set a static I.P. address on the laptop, however this is not ideal.

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Cisco :: DHCP Scope Not Handing Out Addresses

May 21, 2012

I've created a tonne of dhcp scopes on my routers before never had any issues, however this one will not hand out any addresses at all, i even give the router a reload to see if any magic happened but nothing, ive ended having to put a temp server in with just dhcp installed until i get the router diong what it should my config below, its something simple i havent seen, as ive compared it to plenty of my working DHCP configs and seen nothing.

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Program Changing DHCP Server IP Address Scope

Jul 11, 2011

My Network is running Windows Server 2003 and with more than 150 Users. But last week, I notice that a program is changing my DHCP server IP Address scope.

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Cisco Firewall :: DHCP Scope Limitations For ASA5505

Feb 22, 2013

I have a ASA5505 that i have running asdm 6.4 on it and have tried setting up some DHCP scopes for the interfaces.I have the security plus key.I set up 4 interfaces all with different subnets and all with different DHCP being doled out by the firewall for the time being.Anyway, 3 of the 4 work.I have tried to change interfaces wondering if there was an issue with that phy device.I tried enableing the subnet that would not work first and it didnt matter still would not issue dhcp.the other 3 work fine.Is there a limitation to the amount of scopes that will issue dhcp for an asa5505 ?

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Cisco Wireless :: 4402 - DHCP Scope Increase And Changes In Wlc

Feb 6, 2013

i am using wlc 4402 with a mgt ip 172.26.150.x/24 and ap manager ip 172.26.150.x/24, my all ap get the ip address from dhcp . currently in dhcp server to 254 dhcp scope is configured. at mysite some devices are configured like ipad,iphone or galaxy tab with mac binding in dhcp server. now this pool is almost full. i have a policy configured for these devices for mac binding is done in DHCP. to increase pool what are the changes i need to do in wlc. what are the changes i need to do in dhcp server . is policy made for mac binding in dhcp server will get affected by this ?

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Cisco Wireless :: 5508 - Same SSID With Different Dhcp Scope On Same Controller

Aug 10, 2011

I have a 5508 WLC controller at the HQ with the employee ssid ,the dhcp scope on the ssid is network.
However,I want this same ssid to be brodcasted to a remote site using HREAP access point but with  different dhcp scope
I have tried creating another interface for the remote site with a different dhcp scope( but the controller wont allow me create another wlan with same ssid that existed before to apply the new interface created for.

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Cisco Wireless :: DHCP Scope And VLAN Switch SG300?

Feb 16, 2012

I did the config below but unable to obtain the ip from the subnet scope The switch is in the layer 3 mode.
no spanning-tree
vlan database
vlan 2
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________


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Cisco Switching/Routing :: 120 IP Address From Incorrect Scope Is Assigned From DHCP

Jul 8, 2012

I am trying to setup VLANs and most of configurations are working ok now except IP address assignment from DHCP. If any computer in VLAN 120 or 130 configured with manual IP address, then all works fine. It can reach internal servers and the internet without problem.If the IP address is assigned automatically then any computer in VLAN 120 or 130 are obtaining  IP address (strangely!) from VLAN 100. Because switch ports that connected to the computer belongs to VLAN 120 or 130, the computer cannot reach internal servers and the internet with ip address from VLAN 100 . All SVI interfaces for VLAN 100, 120 and 130 have ip helper-address option defined pointing to the DHCP server. No DHCP snooping enabled on all switches at this point. DHCP server have three scopes for the three different VLANs.

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Cisco :: 5508 VLAN Select - DHCP Leases On Each Scope For Same Client

Sep 11, 2011

The 5508 is running code  I have created a group interface for 3 subnets and assigned the group to the WLAN.  Clients are getting IP addresses in a round robin fashion.  The issue or downside to this is if the lease has not expired before the next time the station connects to the WLAN it consumes an address on another subnet instead of grabbing the unexpired lease IP address on it's previous VLAN.  It seems that the WLC determines the VLAN in the interface group before the DHCP request from the client in case the client already received a DHCP address that has not expired.  This can be problematic since we have seen some iPhones requesting an address every 20 minutes thus consuming an address on every subnet in the interface group.  Other than setting a lease time extremely low what can be done to address this?

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Cisco Switching/Routing :: Adding A New DHCP Scope To 3750 Stack

Apr 2, 2012

The company I work for owns a remote manufacturing facility that houses a stack of five 3750 switches that function as the core switching system for the plant.  DHCP services are configured on the 3750 stack.
There are currently three VLANs configured, one for data and one for voice (144 and 244 respectively) and one for UCM servers (200), with corresponding subnets of /19, /19 and /24.
The current DHCP scope configurations are as follows:
ip dhcp pool Plant-44_DHCP

My question is will the addition of this scope in the manner presented cause any problems with PCs or IP phones outside the targeted recepents receiving the wrong IP information from this scope? 
I plan to identify the users that should be members of this VLAN 444 and change the switchport mode access configuration on the corresponding switch ports from VLAN 144 to VLAN 444.  The voice VLAN 244 will remain the same.

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Creating An IP Addressing Scheme For Each Subnet?

Jan 30, 2012

I have been assigned to create a basic IP Addressing Scheme. The company has a single class B private address range of and it needs to be divided into four subnets. They are all based on a single router.

Subnet A: 500 hosts
Subnet B: 200 hosts
Subnet C: 50 hosts
Subnet D: 20 hosts

How can I subnet them correctly and how would I make an addressing scheme for each subnet? (Host range, server, peripherals, gateway address? etc.)

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IP Address Scheme From Theory To Practice

May 18, 2012

I'm doing something in class where I have to define a ip addressing scheme for multiple buildings in what im guessing is a campus lan. I understand how to subnet, but was never taught how to put it into practice. I'm having trouble grasping the creation of a network for: multiple buildings(4) with 3 levels/floors each, housing around 2000 students and 400 staff, all needing to access the network in each building.The main hall houses the data center on the first of 4 levels.

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What Is Secret Behind Ethernet Wire Color Scheme

Oct 18, 2012

I was trying to make an Ethernet cable about 100 feet long and what I found; it was not working in non-standard color scheme. However it works fine when re-arrange its color combination into standard, (Same cable, only color difference).So, why this Color scheme is important? And what is the secret behind its color combination?This is Standard Color Scheme for Ethernet.

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Cisco WAN :: 2801 How To Bridge Through Public Ip Scheme

Dec 14, 2011

I have a cisco 2801 router, My ISP in which i receive my bandwidth from has assigned me a ip address/gateway etc for my FA0/0 from our Telco switch. I need to figure out how to bridge through the public ip scheme they are issuing me through FA0/1 (setting up a transparent bridge) so in example  if i was givin on a /30 network for my router (assigned to FA0/0) how to i set it up to bridge through the publics?

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Cisco WAN :: 6509-E - Interface Numbering Scheme

Sep 30, 2012

I  was wondering if an interface numbering scheme is available for the  6509-E switch equipped with SUP-2T and includes 16Port X 10GE  DFC4,           48 x 1GE SFP and RJ 45 line cards.  Would  like to understand:
How the slots are addressed
Interface Addressing
On board SUP-2T 10G and 1G port addressing

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Laptop Does Not Change IP Address Through DHCP

Mar 8, 2011

The laptop can connect to the internet using the wifi card. However, it cannot connect to the internet when using the wired connection but it can be pinged from other machines at work. The NIC does not pick up a different IP address even after releasing and renewing the IP address through cmd. I have uninstalled and reinstalled the NIC. The NIC is working because when I set a static IP address the machine can connect to the net. Using DHCP it goes back to that same IP address. I have tried a winsock repair as well with no go, as well as taking the machine off the domain and re-joining it. Is there something I can do on my end to get a different IP address through DHCP or do I have to get a Network engineer involved? This is a machine on a corporate LAN?

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Servers :: How To Change From NO To YES In DHCP Enabled

Jan 19, 2011

Ethernet adapter Local Area Connection 2; DHCP Enabled: No

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Cisco Wireless :: 5508 IP Scheme For Access Points

Jan 17, 2013

I have access points deployed across several buildings that each have a different IP scheme and their own T1 line. Is it possible to configure the 5508 controller to allow these access points to use the IP scheme assigned for that particular building or will dhcp always assign an IP address to the connecting client based on the IP scheme of the building that the controller resides in?

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Cisco Switching/Routing :: Interface Numbering Scheme Available For 4900M?

Jan 17, 2010

I was wondering if a interface numbering scheme is available for the 4900M.  Configuration includes 1 x 8Port 10G and 1 x 20Port 1G modules. would like to understand How the slots are addressedInterface AddressingTwinGig interface addressing 

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D-Link DCS-930L :: Change IP Address Of Camera To One Outside DHCP Range?

Apr 26, 2011

Using Android phone and have to set up Port Forwarding to access the cameras. I have to change the IP Address to a static one instead of the one issued by the Router. How do I change the IP Address of the camera to one outside the DHCP range?

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D-Link DIR-655 :: Impossible To Change Dhcp Lease Time On DSL-320B Modem

Apr 1, 2011

I use an adsl router DSL-320B to connect my Linux server (Fedora 12) to the web.I noticed in my logs that it was renewing its ip about every 30s.

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Linksys Wireless Router :: How To Change Dhcp Lease Time On Wrt120n

Sep 25, 2011

i cant seem to change my dhcp lease time even though i change my Client Lease Time to 1 day.

Firmware Version:v1.0.06 build 001 Apr 29 2011 11:08:40Boot Code Version:v0.03Firmware Verification:Current Time:Sun, 25 Sep 2011   10:15:32 PMInternet MAC Address:Host Name: Domain Name: 

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Cisco Wireless :: DHCP In 5508 / Change WLC User Accounts Password Too?

Jul 24, 2012

I just get to hands-on on my new WLC 5508?

1) I'm using a single subnet eg for my wireless clients and i'm assigning them via the DHCP server from the WLC. As the clients are however made up of laptops and scanners, i would like to assign a range from 50-150 for the laptops and 151-250 for the scanners for easier identification. But it seems that from the WLC DHCP menu i'm not able to do this unless i segment them into a different network with different gateways.
2) Is there anyway to change the WLC user accounts password too? I dont seems to be able to find the option unless i delete the account and re-create it with the new password.

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Linksys Wireless Router :: EA6500 - Change DHCP Client Lease Time From 1440 To 480 Minutes

Apr 2, 2013

I'm trying to change the DHCP Client Lease Time from 1440 minutes to 480 minutes.  When I try to apply the new settings, I'm getting a message that says "Invalid Characters" and it won't stick. I've tried this in three different up-to-date browsers (ie10, Chrome and Firefox).  Also, I'm connecting locally through LAN and I have the latest EA6500 Firmware:

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Cisco Wireless :: New 5508 Not Handing Our Correct IP Address Scope To Clients

Jan 15, 2013

Just inserted a new 5508 WLC into the network. We current have 3 4404 WLCs, and there was a need to duplicate, as much as possible, the configurations on the 4404s, and the design. The 5508 came online as expected. We moved a few access points over to it. The APs got the correct address range. The clients are expected to get addresses in the same scope range as the APs. However, the clients are receiving addresses in the management IP scope.I know there are two "not a good way to do it" in here. Why is the management address range in the DHCP scope, and why are the clients using the same scope as the APs. We are going to change that. For now, the AP and client in the same range has been going on since we rolled out wireless in 2006.The 8 ports on the 5508 are configured for LAG. There is no dedicated port for management. They tell me not to do that on a 5508.

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Cisco Wireless :: 4410 Unable To Ping Secondary IP Scope Gateway

Nov 15, 2012

We have a WLC 4410 management IP Address configured as configured VLAN1 on WLC with IP address we are unable to ping the VLAN1 ip address from the switch. even unable to ping (Gateway). Is there any limitation that we can not configured ip address from secondary scope...Switch vlan 1 configuration is ......interface GigabitEthernet0/0.1description Business VLANencapsulation dot1Q 1 nativeip address secondaryip address secondaryip address secondaryip address100.43.94.252

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Remote Corporate Networking Via Vpn

Nov 22, 2012

I am the CEO of a small company with 5 divisions, 2 of which are remote. There is also my home office that I wish to be on the company VPN.We can't afford an IT department, so it is up to me to ask for a network diagram (as specific as possible) that lays out all the hardware required.My plan is to eventually have an intranet web server, file server, and database server all for internal use. Our external webserver is hosted by a well-known company. Growth must be considered both in hardware and network.

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Routers / Switches :: Can't Connect To Corporate Through VPN

Mar 21, 2011

I have a Belkin Wireless G Plus MIMO Router and had no problems connecting to corporate in the past until several months ago. I can connect just fine if I bypass the router and connect to the modem. I also have no problem if I go to places like Subway. There is no problem with the wireless internet connection, only a problem when I try to connect to corporate through the VPN.

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When Tried To Login In Corporate Computer Unexpected Error?

Apr 4, 2012

erro came with 3722------however after checking date and time i was able to login. AZAD

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Cisco :: Hiding Names From Its Corporate Directory Look-up?

May 21, 2012

I have cisco's CUCM version System version: when I do a corporate lookup (form my 7970 I hit Directories - 5) Corporate Directory) I see all sort of accounts that have no phone extensions I.E. our windows service accounts, our administrator accounts that have no number associated with them. is there a way for me to hide them?

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Corporate Wifi Access From Android Phone

Jun 11, 2012

I am trying to connect to my office wifi which uses a proxy server. Scenario 1: I am using Samsung Bada (wave 1), connected to the internet successfully and also any applications that require an internet connection including Samsung's app store. While, connecting via open networks like home wifi and other friends' wifi also worked without any issue. Scenario 2: Now I also have an android based Galaxy pocket: even after entering all the required proxy setting as mentioned above, I can access websites via browser but cannot access samsung's app store, google's play store, skype, sipdroid etc. I know it is nothing to do with the network administration as I am still accessing via my samsung wave but not via android. Is there anything like a network profile I need to assign for these applications?

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