Registered · Cross-platform

3101 BlackBerry Enterprise Server

TCP Unofficial
UDP
SCTP
DCCP

What it is

BES communication protocol.

When / why

Legacy BlackBerry MDM.

Protocol status detail

TransportStatusMeaning
TCP Unofficial Not assigned by IANA, but 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 3101

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 3101

Allow TCP 3101 (BlackBerry Enterprise Server). 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="3101" protocol="tcp" accept'

Allow TCP 3101 (BlackBerry Enterprise Server) from <source>. Run 'firewall-cmd --reload' afterwards.

nftables

nft add rule inet filter input ip saddr <source> tcp dport 3101 accept

Allow TCP 3101 (BlackBerry Enterprise Server). Assumes table 'inet filter' with an 'input' chain.

iptables

sudo iptables -A INPUT -p tcp -s <source> --dport 3101 -j ACCEPT

Allow TCP 3101 (BlackBerry Enterprise Server). Persist with iptables-save/netfilter-persistent.

Azure NSG

az network nsg rule create -g <resource-group> --nsg-name <nsg> -n Allow-blackberryenterpriseserv-3101 --priority 1000 --access Allow --direction Inbound --protocol TCP --source-address-prefixes <source> --destination-port-ranges 3101

Inbound rule for 3101 (BlackBerry Enterprise Server). 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=3101,ToPort=3101,IpRanges="[{CidrIp=<source-cidr>}]"

Inbound TCP 3101 (BlackBerry Enterprise Server). Replace <source-cidr> (e.g. 10.0.0.0/16).

GCP firewall

gcloud compute firewall-rules create allow-blackberryenterpriseserv-3101 --direction=INGRESS --action=ALLOW --rules=tcp:3101 --source-ranges=<source-cidr> --network=<network>

Ingress rule for 3101 (BlackBerry Enterprise Server). Scope with --source-ranges and optionally --target-tags.

Windows netsh

netsh advfirewall firewall add rule name="Allow BlackBerry Enterprise Server 3101/TCP" dir=in action=allow protocol=TCP localport=3101 remoteip=<source>

Inbound TCP 3101 (BlackBerry Enterprise Server). Set remoteip to a host/subnet; 'any' is discouraged.

Windows PowerShell

New-NetFirewallRule -DisplayName "Allow BlackBerry Enterprise Server 3101/TCP" -Direction Inbound -Action Allow -Protocol TCP -LocalPort 3101 -RemoteAddress <source>

Inbound TCP 3101 (BlackBerry Enterprise Server). 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.