Registered · Cross-platform

3724 Blizzard games

TCP Yes
UDP
SCTP
DCCP

What it is

Used by several Blizzard titles (e.g. World of Warcraft).

When / why

Game client connectivity.

Protocol status detail

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

Browse all ports →

Firewall rules for port 3724

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 3724

Allow TCP 3724 (Blizzard games). 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="3724" protocol="tcp" accept'

Allow TCP 3724 (Blizzard games) from <source>. Run 'firewall-cmd --reload' afterwards.

nftables

nft add rule inet filter input ip saddr <source> tcp dport 3724 accept

Allow TCP 3724 (Blizzard games). Assumes table 'inet filter' with an 'input' chain.

iptables

sudo iptables -A INPUT -p tcp -s <source> --dport 3724 -j ACCEPT

Allow TCP 3724 (Blizzard games). Persist with iptables-save/netfilter-persistent.

Azure NSG

az network nsg rule create -g <resource-group> --nsg-name <nsg> -n Allow-blizzardgames-3724 --priority 1000 --access Allow --direction Inbound --protocol TCP --source-address-prefixes <source> --destination-port-ranges 3724

Inbound rule for 3724 (Blizzard games). 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=3724,ToPort=3724,IpRanges="[{CidrIp=<source-cidr>}]"

Inbound TCP 3724 (Blizzard games). Replace <source-cidr> (e.g. 10.0.0.0/16).

GCP firewall

gcloud compute firewall-rules create allow-blizzardgames-3724 --direction=INGRESS --action=ALLOW --rules=tcp:3724 --source-ranges=<source-cidr> --network=<network>

Ingress rule for 3724 (Blizzard games). Scope with --source-ranges and optionally --target-tags.

Windows netsh

netsh advfirewall firewall add rule name="Allow Blizzard games 3724/TCP" dir=in action=allow protocol=TCP localport=3724 remoteip=<source>

Inbound TCP 3724 (Blizzard games). Set remoteip to a host/subnet; 'any' is discouraged.

Windows PowerShell

New-NetFirewallRule -DisplayName "Allow Blizzard games 3724/TCP" -Direction Inbound -Action Allow -Protocol TCP -LocalPort 3724 -RemoteAddress <source>

Inbound TCP 3724 (Blizzard games). 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.