[CentOS] [CentOS7] Firewall trouble with Kickstart

helow

my goal is to install via kickstart a CentOS 7 NFS server but I fail to set the 
firewall rules at installation time.
In my kickstart file I set:

# Firewall configuration
# ssh and NFS
# Ports 111 and 875 are for rquotad
firewall --enabled --ssh --service=nfs --port=111:tcp,111:upd,875:tcp,875:upd

On the installed server,  /root/anaconda-ks.cfg contains:
# Firewall configuration
firewall --enabled --port=111:tcp,111:upd,875:tcp,875:upd --service=ssh,nfs

But after install "firewall-cmd --list-all" returns:

public (active)
   target: default
   icmp-block-inversion: no
   interfaces: p4p1
   sources:
   services: ssh dhcpv6-client
   ports:
   protocols:
   masquerade: no
   forward-ports:
   source-ports:
   icmp-blocks:
   rich rules:

An idea about my mistake ?

Thanks

Patrick

-- 
===================================================================
|  Equipe M.O.S.T.         |                                      |
|  Patrick BEGOU           | mailto:Patrick.Begou at grenoble-inp.fr |
|  LEGI                    |                                      |
|  BP 53 X                 | Tel 04 76 82 51 35                   |
|  38041 GRENOBLE CEDEX    | Fax 04 76 82 52 71                   |
===================================================================