DHCP Server configuration

Dear team,
Here is my DHCP configuration in Juniper route, but now i need to configure DHCP in windows 2008 r2 Server, kindly guide me witch is best way to go head.

Kumar
You no need to configure anything for clients when they are in same vlan or subnet of the DHCP Server. All you need to do for the other vlan clients that can be done by configuring ip helper in defualt gateway..consider
this as example..
DHCP Server 192.168.10.1 (vlan 10) ---------------------------- clients get ip because they are also vlan 10 192.168.10.5,,,,192.168.10.10 etc
other vlans, ex (vlan 20) your client ipconfig will be 192.168.20.1/24
default gateway will be 192.168.20.254 this will be in a switch Go to that interface in switch configure this ip helper address 192.168.10.1
it should work if my understanding is correct..
Thanks

Similar Messages

DHCP Server Configuration - Cisco 1750 router

Good Day All,
can anybody give me a step by step procedure on how to configure my 1750 router as a DHCP server?
Thank you,
Lester

Hello Moses,
You do InterVlan routing with your router, Fa0/1 and Fa0/0 is on your router, two different subnets with two different pools. From the router you have two uplinks - access links. These links are terminated on two different Layer 2 vlan on the switch. If Fa0/0 is terminated on vlan 100, hosts in vlan 100 will get IP address from Fa0/0's dhcp pool, if Fa0/1 is terminated on vlan 200 on the switch all hosts will get ip from Fa0/1's address space.
Fa0/0 dhcp pool: address of the interface is in the pool
Fa0/1 dhcp pool: address of the interface is in the pool, interface address is member of the subnet (that's will be the GW)
bye
FCS
Please rate me if I helped.

How can configure scope options in dhcp server

Good Night Partners.
I need configure scope options in dhcp server on mac mini.
i dont know how to do.
its my first mac and i confuse.
Can anybody help me please.

Are you referring to DHCP Option Codes? If so then this can be done with the DHCP server included with Mac OS X Server. However Apple do not provide a tool for doing this nor for encoding the values in the required format.
What you will need to do is edit the DHCP Server configuration file manually using a text editor. This configuration file is located at /etc/bootpd.plist before you do this I advise having a read of the Unix man page for bootpd (the DHCP server software Apple use).
You can use a utility I have written to generate the required information and then paste this in to /etc/bootpd.plist it can be downloaded from -
http://web.me.com/jelockwood/MyUtilities/dhcp.html

DHCP Setup across multiple VLANs on RV325 - DHCP Server only working on VLAN 1

I have multiple VLAN subnets defined on my RV325 - when I try and utilize a DHCP Server on each VLAN, it only seems to be issuing IP Addresses to clients on VLAN ID 1. When I first set this up months ago, I thought I had tested it providing IP Addresses via the other subnets. Now that I am trying to do so, it isn't working "as expected". Example - I am using VLAN 25 as the GuestWireless subnet utilizing a separate 802.11n WAP that is set to Bridge connections to the IP Address of the VLAN interface. Devices are able to connect to the WAP, but end up with a self-assigned IP Address 169.x.x.x address. There has to be an easy fix to this, but I seem to be "stuck" figuring out what it is…pointers/redirects appreciated. Thanks!

Thanks - I've already reviewed that information before I posted. I've been working with DHCP since the mid-90's, so I'm comfortable with the settings/configuration I need to leverage to make this work via other means using various Network-based OSes.
I'm wondering if there are other options in configuring this device that can impact the ability to dynamically serve IP addresses on a VLAN/subnet-by-VLAN/subnet basis.
As I did more testing, I discovered when I reserved an IP Address via the IP & MAC Binding option within the DHCP Settings, those devices would receive their static reservations and work as expected, so the problem seems to be leveraging the DHCP Pool for devices connecting to VLANs other that VLAN 1.
Any ideas as to why the DHCP Pool's are "non-functioning" for the other VLANs is greatly appreciated...
Each VLAN is setup with a separate DHCP Server configuration as shown below:
VLAN ID = 1 (Default, Inter VLAN Routing = Enabled, LAN1-6 = Untagged, LAN7=Tagged, LAN8=Excluded, LAN9-14 Untagged)
Device IP Address = 172.16.xxx.1
Subnet Mask = 255.255.255.0
DHCP Mode = DHCP Server
Remote DHCP Server = 0.0.0.0
Client Lease Time = 1440 min
Range Start = 172.16.xxx.100
Range End = 172.16.xxx.199
DNS Server = Use DNS as Below
Static DNS 1 = 208.67.222.222
Static DNS 2 = 208.67.220.220
WINS Server = 0.0.0.0
Correctly serving IP Addresses via DHCP (both static and dynamic) to Wired devices & Wireless devices connecting through WAP (set to Bridge)
VLAN ID = 25 (GuestWireless, Inter VLAN Routing = Disabled, LAN1-LAN7 = Excluded, LAN8 = Untagged, LAN9-14 = Excluded)
Device IP Address = 172.16.yyy.1
Subnet Mask = 255.255.255.0
DHCP Mode = DHCP Server
Remote DHCP Server = 0.0.0.0
Client Lease Time = 1440 min
Range Start = 172.16.yyy.100
Range End = 172.16.yyy.199
DNS Server = Use DNS as Below
Static DNS 1 = 208.67.222.222
Static DNS 2 = 208.67.220.220
WINS Server = 0.0.0.0
NOT serving dynamic IP Addresses via DHCP to Wired devices & Wireless devices connecting through WAP (set to Bridge)
Static DHCP Reservations setup via IP & MAC Binding settings DO WORK in terms of providing the assigned static IP Address to the client. Inbound/Outbound traffic to Internet works for devices with Static DHCP Reservations.
VLAN ID = 100 (Voice, Inter VLAN Routing = Disabled, LAN1-6 Excluded, LAN7 = Untagged, LAN8-14 = Excluded)
Device IP Address = 192.168.zzz.1
Subnet Mask = 255.255.255.0
DHCP Mode = DHCP Server
Remote DHCP Server = 0.0.0.0
Client Lease Time = 1440 min
Range Start = 192.168.zzz.100
Range End = 192.168.zzz.199
DNS Server = Use DNS as Below
Static DNS 1 = 208.67.222.222
Static DNS 2 = 208.67.220.220
WINS Server = 0.0.0.0
NOT serving dynamic IP Addresses via DHCP to Wired devices & Wireless devices connecting through WAP set to Bridge
Static DHCP Reservations setup via IP & MAC Binding settings DO WORK in terms of providing the assigned static IP Address to the client. Inbound/Outbound traffic to Internet works for devices with Static DHCP Reservations.

DHCP Server does not work after Exporting and Importing Using Netsh Command

Hello Friends :
I had two dhcp servers in windows server 2003 server , I have upgraded one of them to windows server 2008 32 bit and again i installed a windows server 2008 R2 as an additional Domain Controller , the last scenario was like this :
srv-1 : windows server 2003 + DHCP = working with no problem
srv-2 : windows server 2003 + DC + DHCP = Worked without problem
srv-3 : windows server 2008 R2 + DC = worked without any problems
I exported the DHCP server configuration on the srv-2 using netsh dhcp server export and Imported them to srv-3 using the
netsh dhcp server import command , the command completed successfully and i can see all of the scopes without any problems and errors , i have authorized the new server without any problem , all scopes are activated without any problem so i
disabled the srv-2 DHCP service and unauthorized it from active directory , the problem is that the new server semms that does not lease any address to clients !!!
1- I have authorized it
2- I used Rogue Checker tool in client computers they see authorized server without any problems
3- The same tool in workgroup only shows srv-1 as the DHCP server and does not see other DHCP servers
4- Bindings are OK and DHCP servers only have one NIC installed on them
What can i do to make sure my srv-3 DHCP server will work on the network ?
thanks ...
MIMO

Are the clients on another network so you need to configure a DHCP relay agent?
If you load up perfmon on the dhcp server and remove all counters and then add DHCP counters. Do you see any dhcprequests when you reboot your dhcp clients? This will determine if your server actually receives any dhcp requests.
Have you check event viewer for any warnings or errors?
And the classic one restarted the dhcp server service (or reboot)?
Regards Per-Torben Sørensen http://pertorben.wordpress.com/

Solaris 10 x86 & DHCP server

Hello
I am trying to create a jumpstart server to install some IBM HS20
blades (usb cdrom is not supported for the installation as I know), so
I installed Solaris 10 x86 in a vmware virtual machine and I am trying
to create the jumpstart server, starting by the DHCP server ! this is
the problem !
My configuration is really simple, I followed the SUN instructions to
create the DHCP configuration...
Any help will be appreciated , thanks in advance
Here is the output of the dhcp daemon debug mode
bash-3.00# /usr/lib/inet/in.dhcpd -d -v
4219f200: Daemon Version: 3.5
4219f200: Maximum relay hops: 4
4219f200: Run mode is: DHCP Server Mode.
4219f200: Datastore resource: SUNWfiles
4219f200: Location: /var/dhcp
4219f200: DHCP offer TTL: 10
4219f200: ICMP validation timeout: 1000 milliseconds, Attempts: 1.
4219f200: Maximum concurrent clients: 1024
4219f200: Maximum threads: 256
4219f200: Read 3 entries from DHCP macro database on Mon Feb 21
15:36:48 2005
4219f200: Monitor (0003/pcn0) started...
4219f200: Thread Id: 0003 - Monitoring Interface: pcn0 *****
4219f200: MTU: 1500 Type: SOCKET
4219f200: Broadcast: 172.30.255.255
4219f200: Netmask: 255.255.0.0
4219f200: Address: 172.30.150.117
4219f20a: Datagram received on network device: pcn0(limited
broadcast)
4219f20a: Reserved offer: 172.30.110.9
4219f20b: Sending datagram to broadcast address.
4219f20b: Updated offer: 172.30.110.9
4219f20c: Datagram received on network device: pcn0(limited
broadcast)
4219f210: Datagram received on network device: pcn0(limited
broadcast)
4219f218: Datagram received on network device: pcn0(limited
broadcast)
4219f220: Sending datagram to broadcast address.
4219f220: Updated offer: 172.30.110.9
4219f220: 0004: Refreshed (0x8088870) to (0x8089880)
4219f234: Sending datagram to broadcast address.
4219f234: Updated offer: 172.30.110.9
^C4219f24e: Signal: INT received...Exiting
4219f24e: Freeing offer: 172.30.110.9
4219f24e: Closing interface: pcn0
4219f24e: Monitor (0003/pcn0): exiting.
4219f24e: Interface statistics for: pcn0 **************
4219f24e: Pending DHCP offers: 0
4219f24e: Total Packets Transmitted: 3
4219f24e: Total Packets Received: 4
4219f24e: Total Packet Duplicates: 1
4219f24e: Total Packets Dropped: 0
4219f24e: Total Packets Processed: 3
4219f24e: Total Protocol Errors: 0
4219f24e: Daemon terminated.

what's your DHCP server configuration?
type dhtadm -P and that will print the configuration of the dhcp table and all your macros.
On another note, I also have a blade server (3Up CMU-4) that has USB keyboard and mouse, even if the interface is PS/2 (converted internally to USB). Solaris will not recognize the keyboard and mouse when installing or booting, but after the kernel is loaded I can use them OK. I do get the keyboard profile error and I think it is related to the fact that there is no PS/2 k/m enabled. The only way that I found that I could use the mouse in the graphical interface was to use a USB keyboard with a hub and connect a USB mouse to the keyboard, Anybody has any explanation for this behavior?
Max

DHCP Failover, one DHCP Server Partners Supnet is deactivated, Clients losing network connectivity for 3 sec. after renewing they IP Adress

Hello,
currently we are using two W2K12R2 DHCP server configured in "load balance Mode". On DHCP1 the IP-scope with failover partnership to DHCP2 is deactivated. DHCP2 is working fine. Now we register that 50 percent of our clients (W2K8R2 application
server) losing the network connectivity for 3 sec. after rereleasing they IP-Address. On DHCP2 servers eventlog we receive a lot of
BINDING ACK reject events 20291 and 20292 for these IP addresses entries.
These 3 sec. of loosing they Network connectivity is our big Problem because the Client application (W2K8R2 application server) cannot handle these timeout. It looks like a
DISCOVER-OFFER-REQUEST-NAK cycle that are described here:
http://blogs.technet.com/b/teamdhcp/archive/2014/02/26/dhcp-failover-patch-to-address-a-reservation-issue-and-another-issue-related-to-failover-partner-not-accepting-state-transition-from-bad-address-gt-active-has-been-released.aspx#pi47623=2
there is a solution to prevent the 3 sec network failure?
Rgds

Hi Steffen,
Have you applied KB2919355 in the server?
If issue persists, please check the detailed information about the event. It will tell us why does the server send the NAK.
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]

SF/SG 300 DHCP server

Hi,
is it possible for SF/SG300 switches to be used as DHCP server for non-management VLAN-s.
The switch has VLAN1 as management VLAN - has IP address assigned.
The switch has additional VLAN - VLAN200 and I'd like SG300 to act as DHCP server for clients on this VLAN.
Is this possible at all?

Hi Jernej, the switch must operate in layer 3 mode. You can enable dhcp server per vlan.
To qualify to make a DHCP pool for a layer 3 vlan, none of the vlan interface can have an IP address issued via DHCP, so you vlan 1 and 200 must have a static ip address assigned. The vlan 1 does not require dhcp server configured for vlan 200 to have one.
Here is a sample configuration
config t
vlan database
vlan 200
exit
interface vlan 1
ip address 192.168.100.137 255.255.255.0
no ip address dhcp
exit
interface vlan 200
ip address 192.168.99.1 255.255.255.0
exit
ip dhcp server
ip dhcp pool network test
address low 192.168.99.1 high 192.168.99.254 255.255.255.0
default-router 192.168.99.1
dns-server 8.8.8.8
-Tom
Please mark answered for helpful posts

TSIG Key and ip address in DHCP Server Setting

Hi all,
i would like to display the ip address leases in the java dns/dhcp management console. Tried to follow the description in chapter 7.2.14 (oes2 dns/dhcp documentation) and created the TSIG key. But after that i'm unable to add it to the server object because the 'omapi-key' attribute is missing...
The seccond issue is, that i cannod add the dhcp servers ip address to the dhcp server configuration using the java console or imanager...
Any ideas?
Environment is oes2/sp3
David

David,
Check out TID 7006450, Viewing Dynamic Leases Under the DNS/DHCP Mgt Console from OES2.
Hope it helps.
-Hans
>>> On 5/8/2012 at 7:16 AM, in message <[email protected]>, DThielheim<[email protected]> wrote:
Hi all,
i would like to display the ip address leases in the java dns/dhcp
management console. Tried to follow the description in chapter 7.2.14
(oes2 dns/dhcp documentation) and created the TSIG key. But after that
i'm unable to add it to the server object because the 'omapi-key'
attribute is missing...
The seccond issue is, that i cannod add the dhcp servers ip address to
the dhcp server configuration using the java console or imanager...
Any ideas?
Environment is oes2/sp3
David
DThielheim
DThielheim's Profile: http://forums.novell.com/member.php?userid=4684
View this thread: http://forums.novell.com/showthread.php?t=455608

Configure DHCP Server in Solaris 10

Hi,
I am trying to configure my Solaris 10 as an DHCP server. I managed get it configured and assigning IP address to my client machines (Windows XPs). However, I can't figure out how to get the "Default Gateway" passed into the Windows XP. Here is what I have done so far:
# /usr/sbin/dhcpconfig -D -r SUNWfiles -p /var/dhcp
# /usr/sbin/dhcpconfig -N 192.168.1.0 -t 192.168.1.1
# pntadm -A 192.168.1.51 -m dns 192.168.1.0
But on the Windows XP clients, I get the right IP address, and netmask, but the default gateway is blank. How do I specify that in my DHCP server so that the default gateway gets sent to the XP clients?
Thanks.

Get the apache server from www.sunfreeware.com and install it on your server.
The url will http://hostname-of-your-server
Go to apache.org to get apache documentation.

Configure DHCP Server options for Internet Sharing?

Good morning, all.
I have a Sprint (Sierra 595U) AirCard internet connection, which I'm sharing over my AirPort (using OS X's built-in Internet Sharing) to several Windows clients in my office. I see that when Sharing is enabled, en1 takes on the address 10.0.2.1 by default, as well as the role of default gateway/router and DHCP server for the Windows clients.
My question is: Can I configure the IP addresses and DHCP options for Internet Sharing to another address/mask scheme?
Just like I changed my home wireless network away from the default 192.168.1.0/24 for security reasons, I'd like to do the same here.
Thanks and Regards,
BrooklynWalker

Some paranoia is good.
Yes, of course security paranoia can be cultured. like yogurt
I googled.
This might help:
http://www.aleph0.com/computing/macosx/dhcp-setup/
but from what I just read, changing away from the default net & mask might be putzy.Some other discussions for you:
http://www.macosxhints.com/article.php?story=20050331194834746
or you might see something here that helps.
Sorry not to be more specific. Hard to tell if you already googled for yourself.
I'll let someone smarter than I am take a look for you, here.

Cisco Catalyst 6500 version 12.2(33)SXI13 configured as DHCP server for a VLAN responds to Windows 7 client with status code NOA

Can anyone help figure out why the Catalyst 6509 is not able to assign an IPv6 address? Thank you.
Cisco Catalyst 6500 version 12.2(33)SXI13 configured as DHCP server for a VLAN responds to Windows 7 client with status code NOADDRS-AVAIL(2). My configuration on the 6500 for the DHCPv6 server is:
ipv6 dhcp database disk0://DHCPV6-DB
ipv6 dhcp pool VLAN206IPV6
prefix-delegation pool VLAN206IPV6-POOL
dns-server 2620:B700:0:1001::53
domain-name global.bio.com
ipv6 local pool VLAN206IPV6-POOL 2620:B700:0:12C7::/65 65
interface Vlan206
description *** IPv6 Subnet ***
ip address 10.2.104.2 255.255.255.0
ipv6 address 2620:B700:0:12C7::2/64
ipv6 nd prefix 2620:B700:0:12C7::/64 14400 14400 no-autoconfig
ipv6 nd managed-config-flag
ipv6 dhcp server VLAN206IPV6
standby version 2
standby 0 ip 10.2.104.1
standby 0 preempt
standby 6 ipv6 2620:B700:0:12C7::1/64
standby 6 preempt
I'm getting a result from my debug as follows:
Apr 10 16:28:02.873 PDT: %LINK-3-UPDOWN: Interface GigabitEthernet2/2, changed state to up
Apr 10 16:28:02.873 PDT: %LINK-SP-3-UPDOWN: Interface GigabitEthernet2/2, changed state to up
Apr 10 16:28:02.877 PDT: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/2, changed state to up
Apr 10 16:28:03.861 PDT: IPv6 DHCP: Received SOLICIT from FE80::5D5E:7EBD:CDBF:2519 on Vlan206
Apr 10 16:28:03.861 PDT: IPv6 DHCP: detailed packet contents
Apr 10 16:28:03.861 PDT: src FE80::5D5E:7EBD:CDBF:2519 (Vlan206)
Apr 10 16:28:03.861 PDT: dst FF02::1:2
Apr 10 16:28:03.861 PDT: type SOLICIT(1), xid 8277025
Apr 10 16:28:03.861 PDT: option ELAPSED-TIME(8), len 2
Apr 10 16:28:03.861 PDT: elapsed-time 101
Apr 10 16:28:03.861 PDT: option CLIENTID(1), len 14
Apr 10 16:28:03.861 PDT: 00010001195FD895F01FAF10689E
Apr 10 16:28:03.861 PDT: option IA-NA(3), len 12
Apr 10 16:28:03.861 PDT: IAID 0x0FF01FAF, T1 0, T2 0
Apr 10 16:28:03.861 PDT: option UNKNOWN(39), len 32
Apr 10 16:28:03.861 PDT: option VENDOR-CLASS(16), len 14
Apr 10 16:28:03.861 PDT: option ORO(6), len 8
Apr 10 16:28:03.861 PDT: DOMAIN-LIST,DNS-SERVERS,VENDOR-OPTS,UNKNOWN
Apr 10 16:28:03.861 PDT: IPv6 DHCP: Option IA-NA(3) is not supported yet
Apr 10 16:28:03.861 PDT: IPv6 DHCP: Sending ADVERTISE to FE80::5D5E:7EBD:CDBF:2519 on Vlan206
Apr 10 16:28:03.861 PDT: IPv6 DHCP: detailed packet contents
Apr 10 16:28:03.861 PDT: src FE80::21D:E6FF:FEE4:4400
Apr 10 16:28:03.861 PDT: dst FE80::5D5E:7EBD:CDBF:2519 (Vlan206)
Apr 10 16:28:03.861 PDT: type ADVERTISE(2), xid 8277025
Apr 10 16:28:03.861 PDT: option SERVERID(2), len 10
Apr 10 16:28:03.865 PDT: 00030001001DE6E44400
Apr 10 16:28:03.865 PDT: option CLIENTID(1), len 14
Apr 10 16:28:03.865 PDT: 00010001195FD895F01FAF10689E
Apr 10 16:28:03.865 PDT: option STATUS-CODE(13), len 15
Apr 10 16:28:03.865 PDT: status code NOADDRS-AVAIL(2)
Apr 10 16:28:03.865 PDT: status message: NOADDRS-AVAIL

Hello,
maybe hitting the following bug.
Pv6 Address Assignment Support for IPv6 DHCP Server
CSCse81385
Hope this helps

How do you configure DHCP server on OSX Lion Server

I want to use my Mac Mini Server as a DHCP server on my network. I cannot find the place under Server to configure it.
Where would I find it? It is not under Server.

Hi
Download the Server Admin Tools from here:
http://support.apple.com/kb/DL1457
These are not installed when installing Lion and then Server App. Once installed launch Server Admin, click on the Server's name in the side panel, click on Settings > Services and enable the DHCP Service. Once enabled it should appear in the side panel. The rest should be fairly obvious?
HTH?
Tony

Best practice configure DHCP server NAC

hi all,
any idea how the best practice deploy dhcp on cas? i tired follow user guide configure dhcp on cas but still cannot running smoothly user just only grep ip authenticate.
- CCA agent very slow appear when user get ip dhcp on authenticate.any idea ?
- how to integrated profiler with nac appliance .?

Hi ahmed,
You have configured your CAS to be your DHCP server, Thats well and good because you are using Real IP mode, Which Supports the CAS to be a DHCP server.
Remember
This Setting is only For your Authentication VLAN that your client gets an ip While Authentication ok.
When your Client switches to Access VLAN , your client trafiic no longer flows through the CAS so CAS is now not responsible for DHCP.
You'll have to configure another DHCP on the Trusted Side which can Lease IPs to the Acess VLAN Members.
As you have configured OOB then your client is in Acess VLAN and does not come in contact with the CAS so you need the Trusted side DHCP to give the Client an IP address.
Here in your Scenario your ACCESS VLANS are 2022,2044
Hope this helps, Do reply after Testing.
Thank You
Regards
Edward

Configuring the 3750G WLC to use the Internal DHCP Server

I want to use the Internal DHCP Server on a 3750G WLC to hand out IP's to gueat users. I'm having issues getting the DHCP server to hand out addresses for the guest network - any suggestions would be a great help.
Configuration Details are attached.

Configuring DHCP
http://www.cisco.com/en/US/docs/wireless/controller/5.2/configuration/guide/c52wlan.html#wp1293808

DHCP Server configuration

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