dhcp relay

[Patrick Trapp]

We do, also. I was trying to avoid dropping a lot of unnecessary info on you. We use class definitions based on the parameters our network guys give me. For example,

WARNING: This has not been tested, it's a production config obfuscated, so I may have dropped some punctuation accidently - but hopefully you will see something in the structure that will aid you.

-----------------------------------------------------------------
class "Endpoint-devices"
{          match if
           (substring (option agent.circult_id, 0, 4) = "TOWN")
           and not
           (suffix (option agent.circuit-id,5) = "vlan7")
}

class "Gateway-devices"
{          match if
           (substring (option agent.circult_id, 0, 4) = "TOWN")
           and
           (suffix (option agent.circuit-id,5) = "vlan7")
}

-----------------------------------------------------------------
shared-network TOWN_A_Endpoints {
          # 192.168.1.0/24 Town Network Infrastructure
          subnet 192.168.1.0 netmask 255.255.255.0 {}

          # 10.10.100.0/22 Town Endpoints Network
          subnet 10.10.100.0 netmask 255.255.252.0 {

                    option routers 10.10.100.1;
                    option broadcast-address 10.10.103.255;

                    pool { # Production endpoints
                               failover peer "failover";
                               deny dynamic bootp clients;
                               allow members of "Endpoint-devices";
                               range 10.10.100.30 10.10.103.254;
                      } # Close production endpoints pool
                      pool { # Test endpoints hanging directly off E7
                               failover peer "failover";
                               deny dynamic bootp clients;
                               deny members of "Endpoint-devices";
                               deny members of "Gateway-devices";
                               range 10.10.100.10 10.10.100.29;
                               default-lease-time 21600;
                               min-lease-time 21600;
                               max-lease-time 43200;
                        } #Close test endpoints pool
          } # Close endpoints subnet
          # 172.16.1.1/23 Town Residential Gateways
          subnet 172.16.1.0 netmask 255.255.254.0 {

                    option broadcast-address 172.16.1.255;

                    pool { # Gateway-devices pool
                               failover peer "failover";
                               deny dynamic bootp clients;
                              allow members of "Gateway-devices";
                              range 172.16.1.10 172.16.1.254;
                     } # Close Gateway-devices pool
           } # Close gateways subnet
} # Close shared-network
-----------------------------------------------------------------

Cheers!

________________________________
From: dhcp-users <dhcp-users-bounces at lists.isc.org> on behalf of Alan Batie <alan at peak.org>
Sent: Monday, November 30, 2020 1:56 PM
To: dhcp-users at lists.isc.org <dhcp-users at lists.isc.org>
Subject: Re: dhcp relay

CAUTION: This email originated from outside of the company. Do not click links or open attachments unless you recognize the sender and know the content is safe.

On 11/27/20 6:59 AM, Patrick Trapp wrote:
> Hello, Alan. I am using a similar configuration here, including E7
> devices. We use shared networks to identify the subnet that network
> devices that the end devices are attached to occupy.

We're setup for a vlan/slot so I need to be able to distinguish between
the two vlans; it looks like I'm going to have to use the option82 info
somehow to do this...

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