| Author |
How can I have a router point to multiple DHCP servers for load balance or fail over.
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| supercat 2002-02-22, 8:49 am |
| Is there a way to point a router to multiple DHCP servers for load balance or fail over? If I'm not mistaking I can just create two statements like the following.
ip dhcp-server 192.168.20.10
ip dhcp-server 192.168.20.11
The DHCP client will receive an offer from any one of the DHCP servers and accept any one of the offers but clients usually accepts the first offer it receives.
Can someone tell me if this is correct? | |
| jane55 2002-02-22, 10:20 am |
| Do a search at Cisco website on peer default ip addressing. I believe it possibe utilizing the command. | |
| mikeghet 2002-02-22, 7:19 pm |
| I am a little rusty on the cisco arena, but I think you can use Ip helper address. Not sure. These will rout dhcp packets to the address you specify. | |
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| kevtwad 2002-02-23, 3:20 am |
| you can use the ip helper address command, however use the network address of those dhcp server's.
Kev | |
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|  Nice to see kevtwad back on the Cisco forum. Still having happy days in Walsall, kev?
Hippo (Always been here)
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| kevtwad 2002-02-23, 3:35 am |
| Hippo,
I've sent you a PM
Kev | |
| buntywins 2002-02-23, 6:01 am |
| hi
well i think if we use the load sharing feature of nat then i think we can solve the problem by putting them in a rotary this will also save u ur ip adds or else i think helper adds is also good u can also point towardas a pool of dhcp servers on a single network
i hope these will sove ur problem
buntywins
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| egiron 2002-02-23, 3:19 pm |
| I'm agree that IpHelper is more appropiate.
int s0
Ip helper-address 192.168.20.10
int
Ip helper-address 192.168.20.11
Good luck..
_________________________
First I work Then I get Inspired.
Picasso | |
| kevtwad 2002-02-24, 3:10 am |
| If the server's are in a 24 bit subnet then this is the command.
ip helper-address 192.168.20.0
the router will broadcast out the dhcp request into that subnet, and then the first dhcp server to answer-will send a ip address back.
Kev | |
| MadChef 2002-02-24, 5:07 am |
| If you point ip helper to a subnet broadcast, make sure you enable IP directed broadcast on the target end, otherwise your request will not be converted to a layer 2 broadcast. ip directed-broadcast is disabled by default or more recent revs of code.
MadChef |
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supercat