Infiltrator, thanks for the answer!
root@Pineapple:~# ps aux | grep dhcp
895 root 1504 S udhcpc -p /var/run/udhcpc-eth1.pid -s /lib/netifd/dh
1614 root 1496 S grep dhcp
root@Pineapple:/etc/config# cat dhcp
config 'dnsmasq'
option 'domainneeded' '1'
option 'boguspriv' '1'
option 'filterwin2k' '0'
option 'localise_queries' '1'
option 'rebind_protection' '1'
option 'rebind_localhost' '1'
option 'local' '/lan/'
option 'domain' 'lan'
option 'expandhosts' '1'
option 'nonegcache' '0'
option 'authoritative' '1'
option 'readethers' '1'
option 'leasefile' '/tmp/dhcp.leases'
option 'resolvfile' '/tmp/resolv.conf.auto'
config 'dhcp' 'lan'
option 'interface' 'lan'
option 'start' '100'
option 'limit' '150'
option 'leasetime' '12h'
option 'ignore' '0'
list 'dhcp_option' '3,172.16.42.42'
list 'dhcp_option' '3,172.16.42.1'
list 'dhcp_option' '6,172.16.42.1,8.8.8.8'
list 'dhcp_option' '6,172.16.42.1,208.67.222.222'
#config 'dhcp' 'wan'
# option 'interface' 'wan'
# option 'ignore' '1'
# option 'start' '100'
# option 'limit' '150'
# option 'leasetime' '12h'
# list 'dhcp_option' '3,172.16.42.42'
# list 'dhcp_option' '6,172.16.42.1,8.8.8.8'
# list 'dhcp_option' '6,172.16.42.1,208.67.222.222'