# WHATPORT(1087)

## NAME

port 1087 — CPL Scrambler Internal — The middle port of the undocumented CPL Scrambler trio registered at 1086-1088.

Protocol: TCP  
IANA registry

## DESCRIPTION

1087/tcp and 1087/udp are registered as cplscrambler-in, "CPL Scrambler Internal", part of the same three-port registration as 1086 and 1088. As with its siblings there is no public specification and no known implementation to fingerprint. Any listener here should be traced back to a local process rather than assumed to be the registered service.

## EXPOSURE

**Expose with care.** An unidentified service with unknown authentication — do not expose it until you know what it is.

## CHECK

```sh
nmap -sV -Pn -p 1087 TARGET
```

## SEE ALSO

- iana — [IANA port registry — 1087 (cplscrambler-in)](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=1087) (iana.org)

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HTML: <https://whatport.net/1087/> · JSON: <https://whatport.net/1087.json> · full dataset: <https://whatport.net/ports.json>