Port 2701SMS RCINFO

Port assigned to the SMS RCINFO service over TCP and UDP.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 8/10
lookups: 0

Technical Details

what runs on :2701

This is the SMS RCINFO channel used by legacy Microsoft Systems Management Server remote-control components. The IANA registry lists both TCP and UDP; deployments primarily use it as part of the SMS Remote Tools communication set, with TCP 2702 and 2703 providing related transfer and chat functions. It is a proprietary legacy protocol rather than HTTP, a general-purpose messaging service, or mobile-phone SMS traffic. Exact behavior depends on the SMS version and client configuration.

Security Information

exposure of :2701

risk score

8/ 10risk

treat as sensitive. widely scanned and regularly exploited when reachable — restrict it to known sources.

system averages 2.7 across 923 ports — this one sits 5.3 above.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

tcp · udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

Do not expose this service directly to the Internet. It belongs to a legacy remote-administration system and may disclose client information or participate in remote-control sessions; its security depends on SMS permissions and configuration rather than modern TLS-based protection. Restrict it to trusted management networks and investigate unexpected listeners, especially when the related 2702 and 2703 ports are also open.

Record

iana registry entry

port: :2701
service: SMS RCINFO
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 8/10risk
category: System
usage: Port 2701 is associated with the legacy Microsoft Systems Management Server (SMS) Remote Tools client and viewer. It is commonly encountered alongside ports 2702 (SMS XFER) and 2703 (SMS CHAT) in older SMS deployments, rather than in modern Configuration Manager installations.
lookups: 0rank 993
added: 2026-08-22
updated: 2026-09-22
references: IANA service name registry — port 2701

Something wrong?

This record is maintained by the engineers who use port 2701. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-09-22.

01edit any field on a page of its own
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edit this record →back to the registry

Related Ports

all 923 in system →

the 8 most looked-up other ports in system — 923 ports carry that label.

port	service	proto	category	risk	views
:8888	Sun Answerbook & Alt HTTP	TCP	Web Services	caution	123.9k
:4664	Google Desktop Search	TCP	System	caution	67.2k
:8008	IBM HTTP Server Admin	TCP	Web Services	caution	58.3k
:3268	Microsoft Global Catalog (GC)	TCPUDP	Security	caution	54.6k
:135	Microsoft EPMAP	TCPUDP	Security	caution	51.9k
:9080	WebSphere HTTP Transport (default)	TCP	Web Services	caution	51.6k
:23	Telnet	TCP	Remote Access	caution	34.8k
:12489	NSClient Monitoring Agent	TCP	Network Services	caution	30.0k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :2701SMS RCINFO

Technical Details

Security Information

Related Ports

Port 2701SMS RCINFO