When I nmap my SmartConnect IP or an individual node IP  - I see ONLY the following ports:

nmap X.X.X.X - SmartConnect IP Address
Starting Nmap 5.00 ( http://nmap.org ) at 2014-12-09 13:49 EST
Interesting ports on X.X.X.X:
Not shown: 996 closed ports
PORT STATE SERVICE
22/tcp open ssh
53/tcp open domain
80/tcp open http
8080/tcp open http-proxy

nmap X.X.X.X - Node IP Address

Starting Nmap 5.00 ( http://nmap.org ) at 2014-12-09 13:53 EST

Interesting ports on X.X.X.X:

Not shown: 997 closed ports

PORT     STATE SERVICE

22/tcp   open  ssh

80/tcp   open  http

8080/tcp open  http-proxy

Nmap done: 1 IP address (1 host up) scanned in 0.59 seconds

nmap X.X.X.X -sU

Starting Nmap 5.00 ( http://nmap.org ) at 2014-12-09 15:04 EST

Interesting ports on X.X.X.X:

Not shown: 997 closed ports

PORT    STATE         SERVICE

53/udp  open|filtered domain

123/udp open|filtered ntp

161/udp open|filtered snmp

Nmap done: 1 IP address (1 host up) scanned in 2.13 seconds

But my research shows that the Isilon platform utilizes the following ports:

OneFS uses the following ports:

PORT    PROCESS
----         -------
20         FTP Data: ftpd, vsftpd
21         FTP Control: ftpd, vsftpd
22         SSH:  sshd
23         Telnet:  telnetd
53         DNS:  isi_dnsiq_d
80         HTTP:  httpd
111       RPC:  rpcbind
123       NTP:  ntpd
137       NETBIOS NS:  nmbd
138       NETBIOS Data:  nmbd
139       NETBIOS Session:  smbd
161       SNMP:  snmpd
300       nfsmountd
302       nfsstatd
304       nfslockd
389       LDAP:  lsassd
443       HTTPS:  httpd
445       Microsoft DS:  smbd
464       Kerberos: change/set password
514       Syslog:  syslogd
623       Dummy IPMI Server:  isi_ipmi_d
664       Dummy IPMI Server:  isi_ipmi_d
2049     NFS:  nfsd
2097     SyncIQ:  isi_repl_pworker
2098     SyncIQ:  isi_migr_pworker (deprecated)
3147     SyncIQ:  isi_repl_bandwidth
3148     SyncIQ:  isi_migr_bandwidth (deprecated)
5019     IFS:  ifsd
5038     ibootd:  isi_boot_d
5042     ibootd:  isi_boot_d
5666     SyncIQ:  isi_repl_sworker
5667     SyncIQ:  isi_migr_sworker (deprecated)
6116     Stats:  isi_stats_d
6557     PH:  isi_ph_rpcd
8080     HTTP:  httpd (Isilon WebUI)
8081     HTTP:  httpd (Isilon WebUI)
8086     WebUI:  isi_webui_d
8470     SyncIQ:  isi_replicate
9443     InsightIQ
9999     iSCSI:  isi_iscsi_d
10000   NDMP:  isi_ndmp_d
15100   Upgrade:  isi_upgrade_d

Does anyone have an explanation for why NMAP doesn't enumerate all these ports?

TIA,

Amir