Citrix ADC and CVAD Firewall Rules

Last Modified: Jul 8, 2021 @ 6:45 am

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See CTX101810 Communication Ports Used by Citrix Technologies

💡 = Recently Updated

Change Log

Citrix ADC Firewall Rules

From To Protocol / Port Purpose
Administrator machines NSIPs (and/or SNIPs) TCP 22
TCP 80
TCP 443
TCP 3010
TCP 3008		 SSH and HTTP/SSL access to NetScaler configuration GUI. TCP 3008/3010 is Java and 3008 is used if traffic is encrypted. Java not needed in 10.5 build 57 and newer.
Administrator machines NetScaler SDX SVM, XenServer TCP 22
TCP 80
TCP 443		 To administer NetScaler SDX
Administrator machines NetScaler Lights Out Module TCP 443
TCP 623
TCP 5900		 CTX200367
NSIP
SNIP		 DNS servers Ping
UDP 53
TCP 53		 Ping is used for monitoring. Can be turned off by load balancing on the same appliance.
NSIPs
SNIP		 NetScaler MAS TCP 27000
TCP 7279		 Pooled Licensing
NSIPs
SNIP		 NTP servers UDP 123 NTP
NSIPs
SNIP		 Syslog server UDP 514 Syslog
NSIPs callhome.citrix.com
cis.citrix.com
taas.citrix.com		 TCP 443 Call Home
NSIPs (default)
SNIP		 LDAP Servers(Domain Controllers) TCP 389 (Start TLS)
TCP 636 (Secure LDAP)		 Secure LDAP requires certificates on the Domain Controllers. Secure LDAP enables password changes when they expire.SNIP if Load Balanced on same appliance
NSIPs LDAP Servers TCP 389
TCP 636		 Monitor Domain Controllers
NSIPs (default)
SNIP		 RADIUS servers UDP 1812 RADIUS is used for two-factor authentication. SNIP if Load Balanced on same appliance
SNIP RADIUS servers UDP 1812
Ping		 Monitor RADIUS servers
NetScaler SDX Service virtual machine NSIPs Ping
TCP 22
TCP 80
TCP 443		 Only if NetScaler VPX runs as a virtual machine on top of NetScaler SDX
Local GSLB Site IP
SNIP		 GSLB Site IP (public IP) in other datacenter TCP 3009
TCP 3011		 GSLB Metric Exchange Protocol between appliance pairs
NSIPs GSLB Site IP (public IP) in other datacenter TCP 22
TCP 3008
TCP 3010		 GSLB Configuration Sync
Local GSLB Site IP
SNIP		 All Internet Ping
UDP 53
TCP (high ports)		 RTT to DNS Servers for Dynamic Proximity determination
SNIP StoreFront Load Balancing VIP TCP 443 NetScaler Gateway communicates with StoreFront
SNIP StoreFront servers TCP 80
TCP 443
TCP 808		 StoreFront Load Balancing
NSIPs StoreFront servers TCP 80
TCP 443		 Monitor StoreFront servers
StoreFront servers NetScaler Gateway VIP (DMZ IP) TCP 443 Authentication callback from StoreFront server to NetScaler Gateway.
SNIP Each individual Delivery Controller in every datacenter TCP 80
TCP 443		 Secure Ticket Authorities. This cannot be load balanced.
TCP 443 only if certificates are installed on the Delivery Controllers.
SNIP All internal virtual desktops and session hosts (subnet rule?) TCP 1494
TCP 2598
UDP 1494
UDP 2598
UDP 16500-16509		 HDX ICA
Enlightened Data Transport
Session Reliability
UDP Audio
All Internet
All internal users		 NetScaler Gateway VIP (public IP) TCP 80
TCP 443
UDP 443		 Connections from browsers and native Receivers
DTLS for UDP Audio
All Internet
All internal DNS servers		 SNIP ADNS Listener (Public IP) UDP 53
TCP 53		 ADNS (for GSLB)
Web logging server NSIPs TCP 3010 Web logging polls the NetScalers.
NSIPs NetScaler MAS or other SNMP Trap Destination UDP 161
UDP 162		 SNMP Traps
NSIPs
SNIP		 NetScaler MAS or other AppFlow Collector UDP 4739
TCP 5557, 5558
TCP 5563		 AppFlow (IPFIX, Logstream, and Metrics)
NSIP mfa.cloud.com
trust.citrixworkspacesapi.net		 TCP 443 Native OTP Push (DNS required)
  • Authentication traffic uses NSIPs by default. This can be changed by creating a local Load Balancing Virtual Server on the same appliance and sending authentication traffic through the Load Balancing VIP.
  • Several of the Load Balancing monitors run as Perl scripts, which are sourced from the NSIPs, not SNIP. But actual load balancing traffic uses SNIP as the source IP.
  • DNS Name Servers use ping for monitoring. This can be disabled by creating a local Load Balancing Virtual Server on the same appliance and sending DNS traffic through the load balancer.
  • In a ADC with a dedicated management network and default route on a different data network, configure Policy Based Routes (PBRs) to send NSIP-sourced traffic through a router on the NSIP subnet.
  • Logstream defaults to SNIP as source but can be changed to NSIP. See CTX286215.

Citrix ADM Firewall Rules

Citrix Application Delivery Management (ADM) monitors and manages the ADC appliances.

From To Protocol / Port Purpose
ADM Floating IP
ADM Agent		 NSIPs Ping
TCP 22
TCP 80
TCP 443		 Discovery and configuration of ADC devices
NSIPs ADM Floating IP
ADM Agent		 TCP 80
TCP 443		 Nitro
ADM (Primary, Secondary) NSIPs UDP 161 SNMP
ADM Agents ADM Floating IP TCP 443
TCP 7443
TCP 8443		 Agent Communication
NSIPs ADM Floating IP
ADM Agent		 UDP 4739 AppFlow
SNIP ADM Floating IP
ADM Agent		 TCP 5563 Metrics Collector
NSIPs
SNIP		 ADM Floating IP
ADM Agent		 TCP 5557, 5558 Logstream (ULFD)
NSIPs ADM Floating IP
ADM Agent		 UDP 161
UDP 162		 SNMP Traps
NSIPs ADM Floating IP
ADM Agent		 UDP 514 Syslog
CPX NSIPs
VPX NSIPs		 ADM Floating IP
ADM Agent		 TCP 27000
TCP 7279		 Pooled Licensing
Administrator Machines ADM Floating IP
ADM Agent		 TCP 22
TCP 80
TCP 443		 Web-based GUI
Director Servers ADM Floating IP TCP 80
TCP 443		 Insight Integration with Director
ADM LDAP(S)
LDAP(S) VIP		 TCP 389
TCP 636		 LDAP authentication
ADM Mail Server TCP 25 Email alerts
ADM NTP Server UDP 123 NTP
ADM Syslog Server UDP 514 Syslog

Citrix Virtual Apps and Desktops Firewall Rules

From To Protocol / Port Purpose
Administrator machines Delivery Controllers TCP 80/443
TCP 3389		 PowerShell
RDP
Delivery Controllers SQL Server TCP 1433
UDP 1434
Other static port		 SQL database
Delivery Controllers vCenter TCP 443 vCenter
Delivery Controllers SCVMM (Hyper-V) TCP 8100 SCVMM
Delivery Controllers Citrix Licensing TCP 27000
TCP 7279
TCP 8082-8083		 Citrix Licensing
StoreFront servers Delivery Controllers TCP 80
TCP 443		 XML
Secure Ticket Authority
StoreFront servers StoreFront servers TCP 808 Subscription Replication
StoreFront servers Domain Controllers in Trusted Domains TCP 88
TCP 135
TCP 445
TCP 389/636
TCP 49151-65535		 RPC
Discussions
Administrator machines StoreFront servers TCP 3389 RDP
Administrator machines Citrix Licensing TCP 8082-8083
TCP 3389		 Web-based administration GUI
RDP
Delivery Controllers All VDAs TCP 80 Brokering
All VDAs Delivery Controllers TCP 80 Registration
All VDAs Global Catalogs
(Domain Controllers)		 TCP 3268 Registration
All Server OS VDAs Remote Desktop Licensing Server RPC and SMB Remote Desktop Licensing
All Workspace apps
(Internal)		 StoreFront SSL Load Balancing VIP TCP 80
TCP 443		 Internal access to StoreFront
All Workspace apps Citrix Gateway VIP TCP 80
TCP 443		 External (or internal) access to Citrix Gateway
All Workspace apps
(Internal)		 All VDAs TCP 1494
UDP 1494
TCP 2598
UDP 2598
UDP 16500-16509		 ICA/HDX
EDT
Session Reliability
UDP Audio
Administrator machines Director TCP 3389 RDP
Administrator machines
Help Desk machines		 Director TCP 80
TCP 443		 Web-based GUI
Director Delivery Controllers TCP 80
TCP 443
Director
Administrator machines
Help Desk machines		 All VDAs TCP 135
TCP 3389		 Remote Assistance

Also see Microsoft Technet Which ports are used by a RDS 2012 deployment?

Citrix Provisioning Firewall Rules

From To Protocol / Port Purpose
Provisioning Servers SQL Server TCP 1433
UDP 1434
Other static port		 SQL database for Provisioning Services
Provisioning Servers Provisioning Servers SMB File copy of vDisk files
Provisioning Servers Provisioning Servers UDP 6890-6909 Inter-server communication
Provisioning Servers Citrix Licensing TCP 27000
TCP 7279
TCP 8082-8083
TCP 80		 Citrix Licensing
Provisioning Servers Controllers TCP 80
TCP 443		 Setup Wizards to create machines
Provisioning Servers vCenter TCP 443 Setup Wizards to create machines
Provisioning Servers Target Devices UDP 6901
UDP 6902
UDP 6905		 Provisioning Services Console Target Device power actions (e.g. Restart)
Administrator machines Provisioning Servers TCP 3389
TCP 54321
TCP 54322
TCP 54323		 RDP
SOAP
Controllers Provisioning Servers TCP 54321
TCP 54322
TCP 54323		 Add machines to Catalog
Target Devices DHCP Servers UDP 67 DHCP
Target Devices KMS Server TCP 1688 KMS Licensing
Target Devices Provisioning Servers UDP 69
UDP 67/4011
UDP 6910-6969		 TFTP
PXE
Streaming (expanded port range)
Target Devices Provisioning Servers UDP 6969
UDP 2071		 Two-stage boot (BDM)
Target Devices Provisioning Servers TCP 54321
TCP 54322
TCP 54323		 Imaging Wizard to SOAP Service

119 thoughts on “Citrix ADC and CVAD Firewall Rules”

  1. Hi Carl, I’m referring the firewall rules from “All internet users” to “NetScaler Gateway VIP” with allowing ports “TCP 80/443 and UDP 443”. Curios that from the NetScaler/Citrix article {https://community.citrix.com/tech-zone/build/tech-papers/citrix-communication-ports} doesn’t seems got mention any UDP 443 information, and the link that you provide {https://discussions.citrix.com/topic/361759-udp-audio-through-netscaler-with-dtls/#entry1865386} cannot be reached.
    Just to check from your lab does work with UDP 443 setup?

    Reply

  2. Hi Carl,

    For SAML auth to Azure, do I need any of the URL’s allowed via our proxy from the Netscaler SNIP? The Netscaler is the IDP.

    Reply

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