EMC Unity Family Security Configuration Manual page 35

Service
HTTP
NAS, VAAI-NAS
Portmapper, rpcbind (Network
infrastructure)
NTP
DCE Remote Procedure Call (DCERPC)
and NDMP
NETBIOS Name Service (SMB)
NETBIOS Datagram Service (SMB)
NETBIOS Session Service (SMB)
Table 10 Storage system network ports (continued)
Protocol
TCP
TCP
TCP/UDP
UDP
UDP
TCP/UDP
UDP
TCP/UDP
Port Description
receive messages from DHCP server to
the client (storage system) to
automatically obtain its management
interface information. Also, used to
configure DHCP for the management
interface of a storage system which has
already been deployed. If closed,
dynamic IP addresses will not be
assigned using DHCP.
80 Redirect for HTTP traffic to Unisphere
and the Unisphere CLI. If closed,
management traffic to the default HTTP
port will be unavailable.
111 Provides NAS datastores for VMware
and is used for VAAI-NAS. If closed,
NAS datastores and VAAI-NAS will be
unavailable.
111 Opened by the standard portmapper or
rpcbind service and is an ancillary
storage system network service. It
cannot be stopped. By definition, if a
client system has network connectivity
to the port, it can query it. No
authentication is performed.
123 NTP time synchronization. If closed,
time will not be synchronized among
arrays.
135 Multiple purposes for MicroSoft Client.
Also used for NDMP.
137 The NETBIOS Name Service is
associated with the storage system SMB
file sharing services and is a core
component of that feature (Wins). If
disabled, this port disables all SMB-
related services.
138 The NETBIOS Datagram Service is
associated with the storage system SMB
file sharing services and is a core
component of that feature. Only Browse
service is used. If disabled, this port
disables Browsing capability.
139 The NETBIOS Session Service is
associated with storage system SMB file
sharing services and is a core
component of that functionality. If SMB
services are enabled, this port is open. It
is specifically required for earlier
Storage system network ports
Communication Security
35