Registered · Windows

1755 MMS (Windows Media)

TCP Yes
UDP —
SCTP —
DCCP —

What it is

Microsoft Media Services streaming.

When / why

Legacy media streaming.

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.

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Firewall rules for port 1755

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 1755

Allow TCP 1755 (MMS (Windows 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="1755" protocol="tcp" accept'

Allow TCP 1755 (MMS (Windows Media)) from <source>. Run 'firewall-cmd --reload' afterwards.

nftables

nft add rule inet filter input ip saddr <source> tcp dport 1755 accept

Allow TCP 1755 (MMS (Windows Media)). Assumes table 'inet filter' with an 'input' chain.

iptables

sudo iptables -A INPUT -p tcp -s <source> --dport 1755 -j ACCEPT

Allow TCP 1755 (MMS (Windows Media)). Persist with iptables-save/netfilter-persistent.

Azure NSG

az network nsg rule create -g <resource-group> --nsg-name <nsg> -n Allow-mmswindowsmedia-1755 --priority 1000 --access Allow --direction Inbound --protocol TCP --source-address-prefixes <source> --destination-port-ranges 1755

Inbound rule for 1755 (MMS (Windows 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=1755,ToPort=1755,IpRanges="[{CidrIp=<source-cidr>}]"

Inbound TCP 1755 (MMS (Windows Media)). Replace <source-cidr> (e.g. 10.0.0.0/16).

GCP firewall

gcloud compute firewall-rules create allow-mmswindowsmedia-1755 --direction=INGRESS --action=ALLOW --rules=tcp:1755 --source-ranges=<source-cidr> --network=<network>

Ingress rule for 1755 (MMS (Windows Media)). Scope with --source-ranges and optionally --target-tags.

Windows netsh

netsh advfirewall firewall add rule name="Allow MMS (Windows Media) 1755/TCP" dir=in action=allow protocol=TCP localport=1755 remoteip=<source>

Inbound TCP 1755 (MMS (Windows Media)). Set remoteip to a host/subnet; 'any' is discouraged.

Windows PowerShell

New-NetFirewallRule -DisplayName "Allow MMS (Windows Media) 1755/TCP" -Direction Inbound -Action Allow -Protocol TCP -LocalPort 1755 -RemoteAddress <source>

Inbound TCP 1755 (MMS (Windows 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.