DHCP Lease process with static clients

Hi ,
I have a question regarding DHCP .
Let us assume that DHCP server has been configured with ip address pool, say for ex: 192.168.1.2 to 192.168.2.254.
Now assume that in the LAN network we have 3 clients which have got the DHCP addresses from the above pool say from 192.168.1.2 to 192.168.1.4.
Now I will add one more client with static ip address from the above pool say IP: 192.168.1.5.
Now if I add one more DHCP client, in the above LAN network, will the DHCP server come to know that there is already static client with IP address 192.168.1.5 is exist? and for the newly added client, will it give the same static ip address 192.168.1.5 or will give the next available IP address?
Basically I want to understand that whether DHCP server will have idea of static clients?

Hi,
you can do this creating more than one dhcp server on your router, and you can provide the IP address from the different dhcp servers through assigning ip address from the blog to the specific interface in the router.
regarding the static IP address that have been assigned to a host in your network, the dhcp try to lease the same IP address to another hosts in the network, but once it detected that this IP address is conflected the dhcp server remove this IP address and assign the next IP to the host.
please let me know if this is not cleare.
regards,

Similar Messages

Newly created vLAN in VTP Domain issue with VTP Client

Hello,
I have a VTP Domain with WS-c4506 switch "server" and multiple c2950 "clients" along Microsoft DHCP server.
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[Q]: Static DHCP Lease with the WRT54GL...

Hello,
I have replaced my old D-LINK router with a WRT54GL wireless router.
On the old router I could configure static DHCP entries, providing the same IP address to specific MAC addresses (from my different devices at home), and still continue to receive all other settings via DHCP (Like DNS servers that my ISP changes from time to time).
Using static IP addresses is not an option due that the ISP I'm connected changes the DNS settings frequently and my computers can't connect to the internet. Setting the WRT54GL router as DNS server on my computers is also not practical.
On the WRT54GL I could not find how to create static (or permanent) DHCP leases. Is this possible?.. is this in the wish list for future releases of the firmware?
Thanks in advance.

Thanks for the quick response.
I was surprised that this (and maybe other) Linksys routers does not provide this simple feature.
All DHCP servers I know provide this feature and most of the unmanaged routers that provide DHCP services have this feature.
--- Ricky.

WLC2504 clients not receiving DHCP leases

I'm stock with a 2504 using version 7.0.220.0 that won't lease out DHCP adresses
Wifi clients are unable to get a DHCP lease from an external DHCP server.
The WLC are handling 3 WLAN, 2 using internal DHCP server, 1 (that wont work) using external DHCP. The external DHCP server, is a router/firewall (out of my reach) that suffered from a power out, a short while ago, ever since the DHCP is not working on that VLAN, if client are getting static ip adresses, everything works fine. If i'm using the same network link, and plug it into a computer, I get a DHCP address.
I've enable DHCP proxy
Debbuging DHCP, using: Debug DHCP packets enable
Gives me this:
*DHCP Socket Task: Nov 08 14:21:11.397: c8:0a:a9:cc:6d:f6 DHCP received op BOOTREQUEST (1) (len 308,vlan 20, port 1, encap 0xec00)
*DHCP Socket Task: Nov 08 14:21:11.397: c8:0a:a9:cc:6d:f6 DHCP option len (including the magic cookie) 72
*DHCP Socket Task: Nov 08 14:21:11.397: c8:0a:a9:cc:6d:f6 DHCP option: message type = DHCP INFORM
*DHCP Socket Task: Nov 08 14:21:11.397: c8:0a:a9:cc:6d:f6 DHCP option: 61 (len 7) - skipping
*DHCP Socket Task: Nov 08 14:21:11.397: c8:0a:a9:cc:6d:f6 DHCP option: 12 (len 1) - skipping
*DHCP Socket Task: Nov 08 14:21:11.397: c8:0a:a9:cc:6d:f6 DHCP option: vendor class id = MSFT 5.0 (len 8)
*DHCP Socket Task: Nov 08 14:21:11.397: c8:0a:a9:cc:6d:f6 DHCP option: 55 (len 13) - skipping
*DHCP Socket Task: Nov 08 14:21:11.397: c8:0a:a9:cc:6d:f6 DHCP options end, len 72, actual 64
*DHCP Socket Task: Nov 08 14:21:11.397: c8:0a:a9:cc:6d:f6 DHCP dropping packet (no mscb) found - (giaddr 0.0.0.0, pktInfo->srcPort 68, op: 'BOOTREQUEST')
Thanks

Hi Steen,
When a client is in DHCP REQ state on the controller, the controller drops DHCP inform packets. The client will not go into a RUN state on the controller (this is required for the client to pass traffic) until it receives a DHCP discover packet from the client. DHCP inform packets are forwarded by the controller when DHCP proxy is disabled.
Please check this, if still u r facing issue then provide more info.
Can you please paste a client debug of the client having DHCP issues.
Go to cli of the wlc and run the client debug . Diconnect the client then reconnect and gather the output and post.
Regards

2008 r2 hyper-v guest with static IP always looses network connectivity after every restart - no problem with DHCP

Hello,
We are running 2008 R2 domain with one physical DC and other running in VM on Hyper-V host (2008 R2 Standard). The host has 4 NICs and is configured to use one physical NIC for itself (management) and the hyper-v guest is configured to use another dedicated/physical
NIC (through microsoft virtual switch) just for itself.
I noticed that after setting the hyper-v guest with a static IP address all works fine only until guest restart. When the guest boots up the IP address is still configured correctly in IPv4 properties, but there is no network connectivity at all and in fact
the guest shows running APIPA config in ipconfig /all output. That situation continues until I remove the virtual NIC from hyper-v guest, remove the virtual switch from dedicated NIC on host and then reconfigure it (using same settings as they were). very
annoying.
For time being I switched the virtual DC (problematic hyper-v guest) to a DHCP IP and configured DHCP server (running on physical DC machine, not on hyper-v host) to store a reservation for the hyper-v guest so it always gets the same "static"
IP configuration.
Is there some kind of a problem/bug with using static IP on (2008 R2) hyper-v guests? is there a hotfix for static IP config in hyper-v guest environment?
both 2008 R2 OSes (host and guest) are up to date with all updates (synced with Microsoft, not WSUS).

OK, I'm not at the office now, but took my time to test out the restart scenarios on problematic virtual guest remotely.
No dice, same as it was, everything works fine after guest has IP configured in DHCP mode (IP reservation of 192.168.1.5 for specific MAC address) and it doesn't work after restart in static IP mode (same address, works before restart of guest).
I also took "arp -a" outputs at each step from host server and that was always saying there is only a single host (192.168.1.5 = VDC = problematic virtual guest) assigned to that IP address and always with same MAC, so that pretty much rules out
ARP/MAC troubles and no issues with switches/routers getting spoofed. Problem is most likely with the virtual guest (WS2008R2) or within the host running same OS.
Here are outputs:
A) VDC has IP configured in DHCP mode - always same, survives through restart (all works)
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . : CD.lan
Description . . . . . . . . . . . : Microsoft Virtual Machine Bus Network Adapter
Physical Address. . . . . . . . . : 00-15-5D-01-D3-00
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::b9af:6679:3142:8799%13(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.5(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Thursday, January 30, 2014 5:34:48 PM
Lease Expires . . . . . . . . . . : Friday, February 07, 2014 5:35:26 PM
Default Gateway . . . . . . . . . : 192.168.1.254
DHCP Server . . . . . . . . . . . : 192.168.4.5
DHCPv6 IAID . . . . . . . . . . . : 268440925
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-6F-5F-C2-00-15-5D-01-D3-00
DNS Servers . . . . . . . . . . . : 192.168.1.5
192.168.4.5
NetBIOS over Tcpip. . . . . . . . : Enabled
ARP -a output from host server at that time:
Interface: 192.168.1.4 --- 0xc
Internet Address Physical Address Type
192.168.1.5 00-15-5d-01-d3-00 dynamic
B) VDC has IP configured in static mode - BEFORE RESTART (all works)
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual Machine Bus Network Adapter
Physical Address. . . . . . . . . : 00-15-5D-01-D3-00
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::b9af:6679:3142:8799%13(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.5(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.254
DHCPv6 IAID . . . . . . . . . . . : 268440925
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-6F-5F-C2-00-15-5D-01-D3-00
DNS Servers . . . . . . . . . . . : 192.168.1.5
192.168.4.5
NetBIOS over Tcpip. . . . . . . . : Enabled
ARP -a output from host server at that time:
Interface: 192.168.1.4 --- 0xc
Internet Address Physical Address Type
192.168.1.5 00-15-5d-01-d3-00 dynamic
C) VDC has the same IP configured in static mode - AFTER RESTART (no more network connectivity at all, LAN in Public zone)
Windows IP Configuration
Host Name . . . . . . . . . . . . : VDC
Primary Dns Suffix . . . . . . . : CD.lan
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : CD.lan
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual Machine Bus Network Adapter
Physical Address. . . . . . . . . : 00-15-5D-01-D3-00
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::b9af:6679:3142:8799%13(Preferred)
Autoconfiguration IPv4 Address. . : 169.254.135.153(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . : 192.168.1.254
DHCPv6 IAID . . . . . . . . . . . : 268440925
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-6F-5F-C2-00-15-5D-01-D3-00
DNS Servers . . . . . . . . . . . : 192.168.1.5
192.168.4.5
NetBIOS over Tcpip. . . . . . . . : Enabled
ARP -a output from host server at that time:
Interface: 192.168.1.4 --- 0xc
Internet Address Physical Address Type
192.168.1.5 00-15-5d-01-d3-00 dynamic
Throughout the testing, the hyper-v host IP configuration and IPconfig output was always staying same.
The Network Connection #2 is the only one the host uses (not shared with hyper-v guests).
The Network Connection #4 is assigned to Microsoft Virtual Switch hence why it doesn't show up in results, like below:
Windows IP Configuration
Host Name . . . . . . . . . . . . : HYPER-V
Primary Dns Suffix . . . . . . . : CD.lan
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : CD.lan
Ethernet adapter Local Area Connection 3:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP Ethernet 1Gb 4-port 331i Adapter #3
Physical Address. . . . . . . . . : 9C-8E-99-52-15-91
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Ethernet adapter Local Area Connection 2:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP Ethernet 1Gb 4-port 331i Adapter #2
Physical Address. . . . . . . . . : 9C-8E-99-52-15-90
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::dc78:8a3b:38a5:7af3%12(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.4(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.254
DHCPv6 IAID . . . . . . . . . . . : 312250009
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-67-52-8F-9C-8E-99-52-15-93
DNS Servers . . . . . . . . . . . : 192.168.4.5
192.168.1.5
NetBIOS over Tcpip. . . . . . . . : Enabled
Ethernet adapter Local Area Connection:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP Ethernet 1Gb 4-port 331i Adapter
Physical Address. . . . . . . . . : 9C-8E-99-52-15-93
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
On Monday I will install more test guests in Hyper-V host (WS2008R2), in variety of flavors like 7x64, 8.1x64, ws2012r2, and see if they show similar problems with static IP configuration when utilizing a dedicated NIC from host server.
Don't get me wrong, I can live with virtual DC running on DHCP IP reservation (which is based on MAC), because the virtual DC pretty much requires a physical PDC (hosting also DHCP in my network) to be present for safety reasons ... however I prefer a static
IP configuration on all servers, hence my question and surprise why it doesn't work.

Why available Lan Host not showing up in the DHCP Leased Client table for RV180

I just purchased the RV180 and am puzzled as to why lan host with ip address of 192.168.1.102 not showing up in the DHCP leased clients list.
I have 4 static ip addresses with the last 3 digits ending in 101, 102,103 and 200 listed in the static DHCP and available local network list, but 102 is not in the DHCP leased clients list. The other 3: 101,103 and 200 are.
Should it not be there also?

Thanks Marty,
There is nothing different about 102 than the other hosts.
I did talk to tech support at Cisco this morning and I was told that I should not use the static DHCP under Networking LAN. Instead, I should set the static IP at the device level.
So under Static DHCP, the list is blank, but the IP address will show up under Available LAN Hosts and listed as Static as Type.
I thought this is a bit strange since it is Static DHCP and should be under Static DHCP (?)
George

WRT320N static DHCP leases

hi,
i have a wrt320n. it runs fine, but i'm in need of static DHCP leases.
the reason is simple: if one uses static port forwards for applications that doesn't support upnp, and the client gets a different ip than what's specified for the port forwards, it all gets messed up.
i couldn't find any reference for this feature neither in the manual nor in the router web interface, so i guess it's not possible ATM.
could you please add support for this (quite basic) feature?
thanks in advance.
Solved!
Go to Solution.

Well i think the feature which you are trying to look under the linksys router its not possible. I think you need to wait until linksys release the new firmware along with the DHCP Leases.

Bug or feature? - DHCP with static entries gives "wrong" DNS?

Server 10.4.8 G4 Xserve
Bonded interface (built-in and PCI, LACP)
DHCP, DNS and "more" running.
DHCP static IP entry (?) windows (and mac?) machines get their DNS IP from the server DNS setting from Network config, not from DHCP config ???
Machines with no static entry get the DNS IP from the DHCP server setting.
If you use 127.0.0.1 as the nameserver setting in Network config the static clients obviuosly can't lookup names. I had to use the "hostname IP" instead.

Hi,
I did not quiet understand what you mean. It looks completely visible for me.
You did not set scene width and height so maybe that is reason why it was not visible.
This code works for me:
package playground;
import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.effect.Reflection;
import javafx.scene.layout.BorderPane;
import javafx.scene.text.Font;
import javafx.stage.Stage;
public class LayoutLabel extends Application {
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//        Group pane = new Group();
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//        pane.setTop(label);
//        pane.setBottom(label);
//        Pane pane = new StackPane();
//        Pane pane = new FlowPane();
//        Pane pane = new HBox();
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N82 does not correctly process DHCP leases

I have no problem attaching my new N82 to my, and friends, home wireless networks. However, it fails to connect to the Univeristy Campus network giving the error: "Web: No gateway reply!"
This is because the phone doesn't correctly process DHCP leases with the 'network of one'' (2545.255.255.255) subnet mask.
Campus network details:
HP WAP 530 enterprise access point. The DHCP server is an ISC dhcp server giving out ip address in the standard private class C address range (192.168.1.0) with a subnet mask of (255.255.255.255), and a default route of 192.168.1.1.
This works on Windows 2000/XP/Vista and MAC OSX, but many embedded devices will not add the default route as they see it as outside their subnet. Many institutions use 255.255.255.255 to mitigate inter host communication.
This means I cannot use my N82 at work and I'm not happy. Beware, don't assume you can use your Nokia device at work.

If task manager says it's still running, then obviously it hasn't completed, contrary to what you said. Maybe this .exe process isn't written correctly. For example, maybe it is dependent on the current directory it is launched from, and so double-clicking it causes it to be launched from the directory it lives in, but when run from this java app, the working directory is somewhere else.

EA3500 issue, possibily with DHCP lease renewal

I have a new EA3500 router that's working great for a variety of devices* except a Windows7 laptop. 24 hours after establishing a connection, the laptop loses connectivity and it's very difficult to re-establish a connection. Usually I have to reboot the router, but 24 hours later the problem returns and Windows is unable to connect.
My router settings include DHCP client lease time set to 1440 minutes (24 hours), so I thought the problem might have something to do with DHCP lease renewal. To test this theory, on Saturday night I did ipconfig/release and ipconfig/renew and established connectivity from the laptop.
Sunday morning I spoke with Linksys support and changed several settings per their recommendation:
Network mode mixed (I had it on N-only for some reason)
Assigned different SSIDs to the 2.4GHz band and 5 GHz band
2.4 GHz band channel is 20MHz only, using channel 9
5 GHz band channel is 40 MHz only, using channel 161
I also power cycled the router.
Everything worked fine until Sunday night, 24 hours after the release/renew, when I lost connectivity. I am not sure what to try next and whether the problem lies with the router or the laptop.
* other devices include Macbook, 3 iPhones, iPad, 2 Kindles, printer, DVD player

If you are only having this problem with the laptop then there is a possibility that the problem might really be with the laptop. What you can do on the router though is to add the laptop on DHCP reservation. In that way, even if the router’s DHCP Lease time will stop, the laptop will still be connected since the laptop will now have a fix ip address.

Backing up the DHCP static client list and the netboot white list?

Hi,
we're using a DHCP server here with a list of static clients. Those clients are white-listed via the netboot service.
Can someone please tell me where these services keep their data? So far I've been doing full-image backups but since the servers need to be running 24/7 now, I need to be able to pull backups via the command shell.
peter

Server Admin.app, Server Menu -> Export -> Service settings
or:
'sudo serveradmin settings dhcp' > dhcp_settings
'sudo serveradmin settings netboot' > netboot_settings

Express and extreme both "n" with static vs dhcp reservations.

Good day, and thanks for reading.
I have an express that I have configured to "extend my wireless network" with my extreme. This is all setup manually, with no internet connection needed. everything is static and I am just using the wireless and switch of the routers.
I have 4 electronic components that have static IP addresses _and_ I have added the mac addresses to the DHCP reservation list as well.
I would prefer to leave everything with just the manual addresses in mac access control, however- the apple log does not show the connections for these components with static addresses. However, they do show up on the log as connected in the DHCP client log when I am using DHCP only.
My questions are;
1. Does it hurt performance on the routers to have the mac addresses filled in on both the DHCP reservation list, and the mac address control list?
2. Do I need to have all the mac addresses for my connected components on both the extreme and the express or, can I just have them inserted on the extreme- and are there any conflicts that can arise with having them coded on both routers?
I just want to be able to see the connections on the log, and currently it will only show them if I am using DHCP.
Thanks you.

Hello chrisinoswego. Welcome to the Apple Discussions!
1. Does it hurt performance on the routers to have the mac addresses filled in on both the DHCP reservation list, and the mac address control list?
No.
2. Do I need to have all the mac addresses for my connected components on both the extreme and the express or, can I just have them inserted on the extreme- and are there any conflicts that can arise with having them coded on both routers?
When employing MAC Access Control, the MAC addresses would need to be entered in each base station. The only conflict that I am aware of is when the (in this case) two MAC lists are not identical.

Can not connect with dhcp - renew dhcp lease will switch directly to manuel

If have the following problem
I us apple Airport extreme to connect to internet.
I have 5 Macs, all connecting with airport . They work fine with DHCP. Since 2 weeks I have a problem that one computer – a mac book pro with 10.5.6 will not connect.
When I switch to dhcp and select renew dhcp lease it switch directly back to manuell. I have no chance to connect with dhcp.
Has anyone a suggestion?
Thanks

Wonder why Apple hasn't chimed in on this one...
Whenever you have an issue like this where it's fine, then DHCP stops working for any reason.... Reset the PRAM.
How to:
Apple Logo -> Restart.
After the screen goes black -> Hold down all 4 keys until you hear the third Bong.
"Option"+[Apple Logo OR key to the left of the space bar]"P""R"
After the third BONG or Apple Chime whatever you want to call it. The system's Parameter Ram or to the PC Crowd the CMOS has been reset. This resets your clock, brightness, volume, etc.... So things will get reset along the way but it also resets the IRQ and DMA stats on the logic board. Ala, reseting your Airport's Connection to the logic board, Controllers, etc.

Set Up Airport Extreme with Static IPs and DHCP same time

I have Verizon Fios to my Business with 5 Static IP Address. One of them must be assigned to the Airport Extreme Base Station. I have 5 iMacs needing internet connection of which 2 need to use a static ip,( Filemaker Server and my Mac OS X Web Server). I also use 2 iPhones with a custom App accessing that FileMaker Server via the internet too. I want to set up my Airport Extreme Base Station to have those 2 iMacs connected with static ips , which must NEVER CHANGE, via an ethernet cable and all the rest wireless with WiFi. Do to the size of my building I also want another Airport Extreme or Express to just expand the range from the Base Station for the wireless connections only. Looking at the Airport Internet Settings I only see 3 options for Connection Sharing, "Share A Public IP Address", "Distribute a range of IP addresses", "Off (Bridge Mode)". I'm thinking I need to give 1 IP Address to the Base Station, 2 ip addresses to my servers, then 1 ip address to share for my wireless DHCP connections. The additional Airport set to Off(Bridge Mode) to expand the base station. Please advise on how I would set up that base station to do this.

With respect to expanding the base stations range, in the Base stations Wireless Settings I would click to select "Allow this network to be extendeded". Then what settings would I need in the Additional Airport?
Note: Both AirPorts would have to be 802.11n models in order for this to work. The additional AirPort would need to be configured to extend the Extreme. (ref: AirPort Utility > Manual Setup > AirPort > Wireless > Wireless Mode = Extend a wireless network)
Would that NEED to be connected to the base station via ethernet cable or will it pick up the base station wirelessly?
Using the "extend" feature is intended to expand the wireless range of an AirPort with another wirelessly. You would not need to connect them by Ethernet. In this configuration, the additional AirPort would be in bridge mode and will pass through the IP information from the other base station's DHCP service.

Some Clients wont get DHCP Lease from xServe

Hello,
today we got some strange Network Problems. Some Imacs dont get a IP Adress from our Xserve (10.5). The Xserve tries to offer a adress but the Client wont get them.
The log only says "offer send to xyz-hostname ip-adress"
The strange thing is, when i spoof the Mac Adress on the imac. I get a dhcp lease.
Is there some "Cache" we can reset ? Or simply reboot the Xserve ?
thx

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ip ssh time-out 60
ip ssh authentication-retries 5
ip ssh logging events
ip ssh version 2
interface GigabitEthernet1/0/1
description Gi1/0/1 to CAT-CORE
switchport trunk encapsulation dot1q
switchport mode trunk
interface GigabitEthernet1/0/4
description Gi1/0/4 to RADIUS_serv
switchport access vlan 240
switchport mode access
spanning-tree portfast
spanning-tree bpdufilter enable
spanning-tree bpduguard enable
interface GigabitEthernet1/0/8
description Gi1/0/8 to DHCP_serv
switchport access vlan 240
switchport mode access
spanning-tree portfast
spanning-tree bpdufilter enable
spanning-tree bpduguard enable
interface GigabitEthernet1/0/11
description Aironet 1141 AIRONET-MO-1
switchport trunk encapsulation dot1q
switchport trunk native vlan 240
switchport trunk allowed vlan 240-246,248,249
switchport mode trunk
interface Vlan240
description Admin_Vlan
ip address 192.168.240.244 255.255.255.0
ip default-gateway 192.168.240.1
ip classless
no ip http server
ip http secure-server

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