dhcpd cannot open "/proc/sys/net/ipv4/ip_local_port_range"

Issue

• When starting dhcpd.service unit, the following AVCs are seen when SELinux is in Permissive mode

  type=PROCTITLE msg=... : proctitle=/usr/sbin/dhcpd -f -cf /etc/dhcp/dhcpd.conf -user dhcpd -group dhcpd --no-pid 
  type=PATH msg=... : item=0 name=/proc/sys/net/ipv4/ip_local_port_range ...
  type=CWD msg=... : cwd=/ 
  type=SYSCALL msg=... : arch=x86_64 syscall=openat success=yes ... comm=dhcpd exe=/usr/sbin/dhcpd subj=system_u:system_r:dhcpd_t:s0 key=(null) 
  type=AVC msg=... : avc:  denied  { open } for  ... comm=dhcpd path=/proc/sys/net/ipv4/ip_local_port_range dev="proc" ... scontext=system_u:system_r:dhcpd_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=file permissive=1 
  type=AVC msg=... : avc:  denied  { read } for  pid=37362 comm=dhcpd name=ip_local_port_range dev="proc" ino=181594 scontext=system_u:system_r:dhcpd_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=file permissive=1 
  type=AVC msg=... : avc:  denied  { search } for  pid=37362 comm=dhcpd name=net dev="proc" ... scontext=system_u:system_r:dhcpd_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=dir permissive=1 
  ----
  type=PROCTITLE msg=... : proctitle=/usr/sbin/dhcpd -f -cf /etc/dhcp/dhcpd.conf -user dhcpd -group dhcpd --no-pid 
  type=SYSCALL msg=... : arch=x86_64 syscall=fstat success=yes ... comm=dhcpd exe=/usr/sbin/dhcpd subj=system_u:system_r:dhcpd_t:s0 key=(null) 
  type=AVC msg=... : avc:  denied  { getattr } for  ... comm=dhcpd path=/proc/sys/net/ipv4/ip_local_port_range dev="proc" ino=181594 scontext=system_u:system_r:dhcpd_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=file permissive=1