dhcp server with multiple interfaces
Louis Garcia
louisgtwo at gmail.com
Fri Aug 16 03:28:00 UTC 2019
I am trying to configure dhcp-server with two interfaces enp2s0 and enp3s0
serving two network segments. 172.16.0.1/16 192.168.1.1/24 both interfaces
are
static an up. dhcpd keeps ignoring enp3s0. I'm running fedora 30 with
dhcp-4.3.6
#ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group
default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state
UP
group default qlen 1000
link/ether 00:ec:ac:cd:65:12 brd ff:ff:ff:ff:ff:ff
inet 24.51.220.94/21 brd 24.51.223.255 scope global dynamic
noprefixroute
enp1s0
valid_lft 64440sec preferred_lft 64440sec
inet6 fe80::2ec:acff:fecd:6512/64 scope link
valid_lft forever preferred_lft forever
3: enp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state
UP
group default qlen 1000
link/ether 00:ec:ac:cd:65:13 brd ff:ff:ff:ff:ff:ff
inet 172.16.0.1/16 brd 172.16.255.255 scope global noprefixroute enp2s0
valid_lft forever preferred_lft forever
inet6 fe80::2ec:acff:fecd:6513/64 scope link
valid_lft forever preferred_lft forever# DHCP Server Configuration
file.
4: enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state
UP
group default qlen 1000
link/ether 00:ec:ac:cd:65:14 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.1/24 brd 192.168.1.255 scope global noprefixroute enp3s0
valid_lft forever preferred_lft forever
inet6 fe80::2ec:acff:fecd:6514/64 scope link
valid_lft forever preferred_lft forever
#cat /etc/dhcp/dhcpd.conf
# DHCP Server Configuration file.
authoritative;
default-lease-time 600;
max-lease-time 7200;
subnet 172.16.0.0 netmask 255.255.0.0 {
option subnet-mask 255.255.0.0;
option routers 172.16.0.1;
range 172.16.0.50 172.16.0.100;
}
subnet 192.168.1.0 netmask 255.255.255.0 {
option subnet-mask 255.255.255.0;
option routers 192.168.1.1;
range 192.168.1.10 192.168.1.20;
}
#journal -xe
Aug 15 21:58:43 spider.montclaire.lan systemd[1]: Starting DHCPv4 Server
Daemon...
-- Subject: A start job for unit dhcpd.service has begun execution
-- Defined-By: systemd
-- Support: https://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- A start job for unit dhcpd.service has begun execution.
--
-- The job identifier is 11405.
Aug 15 21:58:43 dcpd[8117]: Internet Systems Consortium DHCP Server 4.3.6
Aug 15 21:58:43 dhcpd[8117]: Copyright 2004-2017 Internet Systems
Consortium.
Aug 15 21:58:43 dhcpd[8117]: All rights reserved.
Aug 15 21:58:43 dhcpd[8117]: For info, please visit
https://www.isc.org/software/dhcp/
Aug 15 21:58:43 dhcpd[8117]: ldap_gssapi_principal is not set,GSSAPI
Authentication for LDAP will not be used
Aug 15 21:58:43 dhcpd[8117]: Not searching LDAP since ldap-server,
ldap-port and ldap-base-dn were not specified in the config file
Aug 15 21:58:43 dhcpd[8117]: Config file: /etc/dhcp/dhcpd.conf
Aug 15 21:58:43 dhcpd[8117]: Database file: /var/lib/dhcpd/dhcpd.leases
Aug 15 21:58:43 dhcpd[8117]: PID file: /var/run/dhcpd.pid
Aug 15 21:58:43 dhcpd[8117]: Source compiled to use binary-leases
Aug 15 21:58:43 dhcpd[8117]: Wrote 0 leases to leases file.
Aug 15 21:58:43 dhcpd[8117]:
Aug 15 21:58:43 dhcpd[8117]: No subnet declaration for enp3s0; (no IPv4
addresses).
Aug 15 21:58:43 dhcpd[8117]: ** Ignoring requests on enp3s0;. If this is
not what
Aug 15 21:58:43 dhcpd[8117]: you want, please write a subnet declaration
Aug 15 21:58:43 dhcpd[8117]: in your dhcpd.conf file for the network
segment
Aug 15 21:58:43 dhcpd[8117]: to which interface enp3s0; is attached. **
Aug 15 21:58:43 dhcpd[8117]:
Aug 15 21:58:43 dhcpd[8117]: Listening on LPF/enp2s0/00:ec:ac:cd:65:13/
172.16.0.0/16
Aug 15 21:58:43 dhcpd[8117]: Sending on LPF/enp2s0/00:ec:ac:cd:65:13/
172.16.0.0/16
Aug 15 21:58:43 dhcpd[8117]: Sending on Socket/fallback/fallback-net
Aug 15 21:58:43 dhcpd[8117]: Server starting service.
Aug 15 21:58:43 dhcpd[8117]: Discarding packet with bogus hlen.
Aug 15 21:58:43 systemd[1]: Started DHCPv4 Server Daemon.
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