Registered · Cross-platform

5004 RTP media

TCP Yes
UDP Yes
SCTP —
DCCP —

What it is

Real-time Transport Protocol media (voice/video).

When / why

VoIP/video media streams. Open the negotiated RTP range.

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.
« 5001 iperf / Synology (TLS) 5005 RTCP »

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 5004

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 5004

Allow TCP 5004 (RTP media). Replace <source> with the network/host that should reach it.

sudo ufw allow proto udp from <source> to any port 5004

Allow UDP 5004 (RTP media). 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="5004" protocol="tcp" accept'

Allow TCP 5004 (RTP media) from <source>. Run 'firewall-cmd --reload' afterwards.

sudo firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address="<source>" port port="5004" protocol="udp" accept'

Allow UDP 5004 (RTP media) from <source>. Run 'firewall-cmd --reload' afterwards.

nftables

nft add rule inet filter input ip saddr <source> tcp dport 5004 accept

Allow TCP 5004 (RTP media). Assumes table 'inet filter' with an 'input' chain.

nft add rule inet filter input ip saddr <source> udp dport 5004 accept

Allow UDP 5004 (RTP media). Assumes table 'inet filter' with an 'input' chain.

iptables

sudo iptables -A INPUT -p tcp -s <source> --dport 5004 -j ACCEPT

Allow TCP 5004 (RTP media). Persist with iptables-save/netfilter-persistent.

sudo iptables -A INPUT -p udp -s <source> --dport 5004 -j ACCEPT

Allow UDP 5004 (RTP media). Persist with iptables-save/netfilter-persistent.

Azure NSG

az network nsg rule create -g <resource-group> --nsg-name <nsg> -n Allow-rtpmedia-5004 --priority 1000 --access Allow --direction Inbound --protocol "*" --source-address-prefixes <source> --destination-port-ranges 5004

Inbound rule for 5004 (RTP media). 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=5004,ToPort=5004,IpRanges="[{CidrIp=<source-cidr>}]"

Inbound TCP 5004 (RTP media). 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=5004,ToPort=5004,IpRanges="[{CidrIp=<source-cidr>}]"

Inbound UDP 5004 (RTP media). Replace <source-cidr> (e.g. 10.0.0.0/16).

GCP firewall

gcloud compute firewall-rules create allow-rtpmedia-5004 --direction=INGRESS --action=ALLOW --rules=tcp:5004,udp:5004 --source-ranges=<source-cidr> --network=<network>

Ingress rule for 5004 (RTP media). Scope with --source-ranges and optionally --target-tags.

Windows netsh

netsh advfirewall firewall add rule name="Allow RTP media 5004/TCP" dir=in action=allow protocol=TCP localport=5004 remoteip=<source>

Inbound TCP 5004 (RTP media). Set remoteip to a host/subnet; 'any' is discouraged.

netsh advfirewall firewall add rule name="Allow RTP media 5004/UDP" dir=in action=allow protocol=UDP localport=5004 remoteip=<source>

Inbound UDP 5004 (RTP media). Set remoteip to a host/subnet; 'any' is discouraged.

Windows PowerShell

New-NetFirewallRule -DisplayName "Allow RTP media 5004/TCP" -Direction Inbound -Action Allow -Protocol TCP -LocalPort 5004 -RemoteAddress <source>

Inbound TCP 5004 (RTP media). Replace <source> with a host or subnet.

New-NetFirewallRule -DisplayName "Allow RTP media 5004/UDP" -Direction Inbound -Action Allow -Protocol UDP -LocalPort 5004 -RemoteAddress <source>

Inbound UDP 5004 (RTP media). 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.