Registered · Windows

6600 Hyper-V Live Migration / MPD

TCP Yes
UDP Unofficial
SCTP —
DCCP —

What it is

Microsoft Hyper-V Live Migration; also Music Player Daemon.

When / why

VM live migration between Hyper-V hosts (also see 6601/6602).

Protocol status detail

TransportStatusMeaning
TCP Yes Assigned by IANA and standardized, specified, or widely used on this port.
UDP Unofficial Not assigned by IANA, but standardized, specified, or widely used on this port.
SCTP — Not applicable for this transport.
DCCP — Not applicable for this transport.
« 6566 SANE scanner 6601 MS Forefront TMG »

Port range

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

Browse all ports →

Firewall rules for port 6600

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 6600

Allow TCP 6600 (Hyper-V Live Migration / MPD). Replace <source> with the network/host that should reach it.

sudo ufw allow proto udp from <source> to any port 6600

Allow UDP 6600 (Hyper-V Live Migration / MPD). 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="6600" protocol="tcp" accept'

Allow TCP 6600 (Hyper-V Live Migration / MPD) from <source>. Run 'firewall-cmd --reload' afterwards.

sudo firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address="<source>" port port="6600" protocol="udp" accept'

Allow UDP 6600 (Hyper-V Live Migration / MPD) from <source>. Run 'firewall-cmd --reload' afterwards.

nftables

nft add rule inet filter input ip saddr <source> tcp dport 6600 accept

Allow TCP 6600 (Hyper-V Live Migration / MPD). Assumes table 'inet filter' with an 'input' chain.

nft add rule inet filter input ip saddr <source> udp dport 6600 accept

Allow UDP 6600 (Hyper-V Live Migration / MPD). Assumes table 'inet filter' with an 'input' chain.

iptables

sudo iptables -A INPUT -p tcp -s <source> --dport 6600 -j ACCEPT

Allow TCP 6600 (Hyper-V Live Migration / MPD). Persist with iptables-save/netfilter-persistent.

sudo iptables -A INPUT -p udp -s <source> --dport 6600 -j ACCEPT

Allow UDP 6600 (Hyper-V Live Migration / MPD). Persist with iptables-save/netfilter-persistent.

Azure NSG

az network nsg rule create -g <resource-group> --nsg-name <nsg> -n Allow-hypervlivemigrationmpd-6600 --priority 1000 --access Allow --direction Inbound --protocol "*" --source-address-prefixes <source> --destination-port-ranges 6600

Inbound rule for 6600 (Hyper-V Live Migration / MPD). 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=6600,ToPort=6600,IpRanges="[{CidrIp=<source-cidr>}]"

Inbound TCP 6600 (Hyper-V Live Migration / MPD). 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=6600,ToPort=6600,IpRanges="[{CidrIp=<source-cidr>}]"

Inbound UDP 6600 (Hyper-V Live Migration / MPD). Replace <source-cidr> (e.g. 10.0.0.0/16).

GCP firewall

gcloud compute firewall-rules create allow-hypervlivemigrationmpd-6600 --direction=INGRESS --action=ALLOW --rules=tcp:6600,udp:6600 --source-ranges=<source-cidr> --network=<network>

Ingress rule for 6600 (Hyper-V Live Migration / MPD). Scope with --source-ranges and optionally --target-tags.

Windows netsh

netsh advfirewall firewall add rule name="Allow Hyper-V Live Migration / MPD 6600/TCP" dir=in action=allow protocol=TCP localport=6600 remoteip=<source>

Inbound TCP 6600 (Hyper-V Live Migration / MPD). Set remoteip to a host/subnet; 'any' is discouraged.

netsh advfirewall firewall add rule name="Allow Hyper-V Live Migration / MPD 6600/UDP" dir=in action=allow protocol=UDP localport=6600 remoteip=<source>

Inbound UDP 6600 (Hyper-V Live Migration / MPD). Set remoteip to a host/subnet; 'any' is discouraged.

Windows PowerShell

New-NetFirewallRule -DisplayName "Allow Hyper-V Live Migration / MPD 6600/TCP" -Direction Inbound -Action Allow -Protocol TCP -LocalPort 6600 -RemoteAddress <source>

Inbound TCP 6600 (Hyper-V Live Migration / MPD). Replace <source> with a host or subnet.

New-NetFirewallRule -DisplayName "Allow Hyper-V Live Migration / MPD 6600/UDP" -Direction Inbound -Action Allow -Protocol UDP -LocalPort 6600 -RemoteAddress <source>

Inbound UDP 6600 (Hyper-V Live Migration / MPD). 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.