Identifying DHCP Relay Agent

[William Lindén]

> Message-ID: d2695be005092005492fbde2ba () mail ! gmail ! com
> 
> You have to assign different classes for each relay agent:
> 
> class relay_agent_1{
>     match if packet (24,4)  is the ip address of the first relay agent 
> }
> class relay_agent_2{
>     match if packet (24,4)  is the ip address of the second relay agent
> }
> subnet{
>     allow members of "relay_agent_1"
> ....
> ...
> ..
> .
> 

Hello,

I'm trying to do something like this above, but I'm probably doint something wrong, again.


I'd like to set a different router depending on via which router the request gets in. Idea would be to use one bigger subnet instead of several smaller, and with vrrp/hsrp etc etc, but thats a different problem.. ;)

Here's my config, but it just tells me no free leases when I try to get an IP from the dhcp..

----

shared-network vrrp-test
{

 class "via_router1" {
  match if packet (24,4) = "192.168.1.2";
  option routers 192.168.1.2;
  }

 class "via_router2" {
  match if packet (24,4) = "192.168.1.3";
  option routers 192.168.1.3;
  }

 subnet 192.168.1.0 netmask 255.255.255.0
 {
  pool
  {
  allow members of "via_router1";
  allow members of "via_router2";
  range 192.168.1.10 192.168.1.254;
  option subnet-mask 255.255.255.0;
  }
 }
}

----

Jul 12 16:50:35 katla dhcpd: DHCPDISCOVER from 00:0a:e4:53:7d:63 via 192.168.1.2: network vrrp-test: no free leases

Anyone got any ideas?

Thanks and Kind Regards,
--
William Lindén,
Multi.fi Finland