Registered · Cross-platform

2535 MADCAP

TCP Yes
UDP Yes
SCTP
DCCP

What it is

Multicast Address Dynamic Client Allocation Protocol.

When / why

Dynamic multicast address assignment.

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 2535

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 2535

Allow TCP 2535 (MADCAP). Replace <source> with the network/host that should reach it.

sudo ufw allow proto udp from <source> to any port 2535

Allow UDP 2535 (MADCAP). 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="2535" protocol="tcp" accept'

Allow TCP 2535 (MADCAP) from <source>. Run 'firewall-cmd --reload' afterwards.

sudo firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address="<source>" port port="2535" protocol="udp" accept'

Allow UDP 2535 (MADCAP) from <source>. Run 'firewall-cmd --reload' afterwards.

nftables

nft add rule inet filter input ip saddr <source> tcp dport 2535 accept

Allow TCP 2535 (MADCAP). Assumes table 'inet filter' with an 'input' chain.

nft add rule inet filter input ip saddr <source> udp dport 2535 accept

Allow UDP 2535 (MADCAP). Assumes table 'inet filter' with an 'input' chain.

iptables

sudo iptables -A INPUT -p tcp -s <source> --dport 2535 -j ACCEPT

Allow TCP 2535 (MADCAP). Persist with iptables-save/netfilter-persistent.

sudo iptables -A INPUT -p udp -s <source> --dport 2535 -j ACCEPT

Allow UDP 2535 (MADCAP). Persist with iptables-save/netfilter-persistent.

Azure NSG

az network nsg rule create -g <resource-group> --nsg-name <nsg> -n Allow-madcap-2535 --priority 1000 --access Allow --direction Inbound --protocol "*" --source-address-prefixes <source> --destination-port-ranges 2535

Inbound rule for 2535 (MADCAP). 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=2535,ToPort=2535,IpRanges="[{CidrIp=<source-cidr>}]"

Inbound TCP 2535 (MADCAP). 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=2535,ToPort=2535,IpRanges="[{CidrIp=<source-cidr>}]"

Inbound UDP 2535 (MADCAP). Replace <source-cidr> (e.g. 10.0.0.0/16).

GCP firewall

gcloud compute firewall-rules create allow-madcap-2535 --direction=INGRESS --action=ALLOW --rules=tcp:2535,udp:2535 --source-ranges=<source-cidr> --network=<network>

Ingress rule for 2535 (MADCAP). Scope with --source-ranges and optionally --target-tags.

Windows netsh

netsh advfirewall firewall add rule name="Allow MADCAP 2535/TCP" dir=in action=allow protocol=TCP localport=2535 remoteip=<source>

Inbound TCP 2535 (MADCAP). Set remoteip to a host/subnet; 'any' is discouraged.

netsh advfirewall firewall add rule name="Allow MADCAP 2535/UDP" dir=in action=allow protocol=UDP localport=2535 remoteip=<source>

Inbound UDP 2535 (MADCAP). Set remoteip to a host/subnet; 'any' is discouraged.

Windows PowerShell

New-NetFirewallRule -DisplayName "Allow MADCAP 2535/TCP" -Direction Inbound -Action Allow -Protocol TCP -LocalPort 2535 -RemoteAddress <source>

Inbound TCP 2535 (MADCAP). Replace <source> with a host or subnet.

New-NetFirewallRule -DisplayName "Allow MADCAP 2535/UDP" -Direction Inbound -Action Allow -Protocol UDP -LocalPort 2535 -RemoteAddress <source>

Inbound UDP 2535 (MADCAP). 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.