Installation Guide
40 HP VSC Software Installation
• Secure Unused TCP/UDP Ports
After installing and configuring the HP VSC, the user should take all steps necessary to
ensure the network security of the HP VSC system through the use of ACLs and/or firewalls
and by disabling any unneeded network services on the node.
Table 6 lists the required and optional UDP/TCP ports for particular services for inbound
connections to the HP VSC.
Table 7 lists required and optional UDP/TCP ports for particular services for outbound
connections from the HP VSC.
Optional ports are only required if the network service is in use on the HP VSC.
Table6:HPVSCUDP/TCPInbound/OpenedPorts
Port UDP/TCP Required/
Optional
ProtocolNotes
21/22 TCP Optional FTP
22 TCP Optional SSH
23 TCP Optional Telnet
123 UDP Required NTP
161/162 UDP Optional SNMP‐requiredforSNMPmanagement
179 TCP Required BGP‐requiredforfederatedHPVSCs
6633 TCP Required OpenFlow
49152‐
65535
UDP Optional RADIUSforconsoleuserauthentication
dynamicallyreservesportsinthisrange
uponinitializationoftheHPVSCforout‐
goingconnectionsandtheresulting
response.Theportsusedinthisrange
canbeviewedwith“showsystemcon‐
nections”.
IfRADIUSnotused,noincomingpackets
willbeforwardedorprocessed.
Table7:HPVSCUDP/TCPOutbound/RemotePorts
Port UDP/TCP Required/
Optional
ProtocolNotes
21/22 TCP Optional FTP
22 TCP Optional SSH
23 TCP Optional Telnet
49 TCP Optional TACACS+
53 UDP/TCP Required DNS