Registered · Cross-platform

4172 PCoIP (Teradici)

TCP Yes
UDP Yes
SCTP
DCCP

What it is

Teradici PCoIP remote display protocol.

When / why

VDI/remote workstation (VMware Horizon, Teradici).

Protocol status detail

TransportStatusMeaning
TCP Yes Assigned by IANA and standardized, specified, or widely used on this port.
UDP Yes Assigned by IANA and standardized, specified, or widely used on this port.
SCTP Not applicable for this transport.
DCCP Not applicable for this transport.

Port range

Registered (1024–49151). Assigned by IANA on request; usable without elevated privileges on most systems.

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Firewall rules for port 4172

Copy-ready inbound rules for the active transports. Replace every <source> placeholder with the specific host, subnet, or CIDR that should reach this port.

ufw

sudo ufw allow proto tcp from <source> to any port 4172

Allow TCP 4172 (PCoIP (Teradici)). Replace <source> with the network/host that should reach it.

sudo ufw allow proto udp from <source> to any port 4172

Allow UDP 4172 (PCoIP (Teradici)). Replace <source> with the network/host that should reach it.

firewalld

sudo firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address="<source>" port port="4172" protocol="tcp" accept'

Allow TCP 4172 (PCoIP (Teradici)) from <source>. Run 'firewall-cmd --reload' afterwards.

sudo firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address="<source>" port port="4172" protocol="udp" accept'

Allow UDP 4172 (PCoIP (Teradici)) from <source>. Run 'firewall-cmd --reload' afterwards.

nftables

nft add rule inet filter input ip saddr <source> tcp dport 4172 accept

Allow TCP 4172 (PCoIP (Teradici)). Assumes table 'inet filter' with an 'input' chain.

nft add rule inet filter input ip saddr <source> udp dport 4172 accept

Allow UDP 4172 (PCoIP (Teradici)). Assumes table 'inet filter' with an 'input' chain.

iptables

sudo iptables -A INPUT -p tcp -s <source> --dport 4172 -j ACCEPT

Allow TCP 4172 (PCoIP (Teradici)). Persist with iptables-save/netfilter-persistent.

sudo iptables -A INPUT -p udp -s <source> --dport 4172 -j ACCEPT

Allow UDP 4172 (PCoIP (Teradici)). Persist with iptables-save/netfilter-persistent.

Azure NSG

az network nsg rule create -g <resource-group> --nsg-name <nsg> -n Allow-pcoipteradici-4172 --priority 1000 --access Allow --direction Inbound --protocol "*" --source-address-prefixes <source> --destination-port-ranges 4172

Inbound rule for 4172 (PCoIP (Teradici)). Set <source> to a CIDR; lower priority number = higher precedence.

AWS Security Group

aws ec2 authorize-security-group-ingress --group-id <sg-id> --ip-permissions IpProtocol=tcp,FromPort=4172,ToPort=4172,IpRanges="[{CidrIp=<source-cidr>}]"

Inbound TCP 4172 (PCoIP (Teradici)). Replace <source-cidr> (e.g. 10.0.0.0/16).

aws ec2 authorize-security-group-ingress --group-id <sg-id> --ip-permissions IpProtocol=udp,FromPort=4172,ToPort=4172,IpRanges="[{CidrIp=<source-cidr>}]"

Inbound UDP 4172 (PCoIP (Teradici)). Replace <source-cidr> (e.g. 10.0.0.0/16).

GCP firewall

gcloud compute firewall-rules create allow-pcoipteradici-4172 --direction=INGRESS --action=ALLOW --rules=tcp:4172,udp:4172 --source-ranges=<source-cidr> --network=<network>

Ingress rule for 4172 (PCoIP (Teradici)). Scope with --source-ranges and optionally --target-tags.

Windows netsh

netsh advfirewall firewall add rule name="Allow PCoIP (Teradici) 4172/TCP" dir=in action=allow protocol=TCP localport=4172 remoteip=<source>

Inbound TCP 4172 (PCoIP (Teradici)). Set remoteip to a host/subnet; 'any' is discouraged.

netsh advfirewall firewall add rule name="Allow PCoIP (Teradici) 4172/UDP" dir=in action=allow protocol=UDP localport=4172 remoteip=<source>

Inbound UDP 4172 (PCoIP (Teradici)). Set remoteip to a host/subnet; 'any' is discouraged.

Windows PowerShell

New-NetFirewallRule -DisplayName "Allow PCoIP (Teradici) 4172/TCP" -Direction Inbound -Action Allow -Protocol TCP -LocalPort 4172 -RemoteAddress <source>

Inbound TCP 4172 (PCoIP (Teradici)). Replace <source> with a host or subnet.

New-NetFirewallRule -DisplayName "Allow PCoIP (Teradici) 4172/UDP" -Direction Inbound -Action Allow -Protocol UDP -LocalPort 4172 -RemoteAddress <source>

Inbound UDP 4172 (PCoIP (Teradici)). Replace <source> with a host or subnet.

Rules are generated only for transports marked active for this port. They default to an inbound allow with an explicit source placeholder — never any. Review direction, scope, and rule precedence before applying in production.