CCcam lines: setting up and connecting C-line on the receiver

If you are holding a line likeC: my.server.net 12000 user123 pass456 and do not understand where to insert it and why nothing works — this material will answer all your questions. We will break down cccam lines from format to diagnosing real problems: freezes, disconnections, and channels that stubbornly do not open.

What is a CCcam line and how to read the C-line format

CCcam line is an access string to a card sharing server operating under the CCcam protocol. The protocol works over TCP and allows the client receiver to decrypt channels by sending ECM requests to the server with a physical smart card.

Structure of the line C: host port user pass

The format looks like this:

C: my.server.net 12000 user123 pass456

Breaking it down by fields:

• C: — prefix, denotes client connection (Client line). It is written with a capital letter, the colon is mandatory.
• my.server.net — server address. It can be a DNS name or directly an IPv4 (for example,91.234.56.78). DNS is preferable if the server has a dynamic IP.
• 12000 — TCP port. The typical range is from 10000 to 30000, but non-standard values can also occur. The port is set by the line provider.
• user123 — access login.
• pass456 — password. Separators are spaces, no commas or semicolons.

Fields are case-sensitive.User123 anduser123 — different logins. This is a trivial reason for half of the non-working connections I have seen.

How C-line differs from N-line and F-line

Confusion between types of lines occurs constantly, so let's clarify:

Prefix	Protocol	Purpose
C:	CCcam	Your receiver connects to the CCcam server as a client
N:	Newcamd	Connection via Newcamd protocol (different format, different port)
F:	CCcam	Shares access with your clients — you act as the server

N-line is not inserted into CCcam.cfg like C-line — it has a different format and a different section in the config. If you were given a line with the prefix N:, it needs to be added to the Newcamd section or use OScam withprotocol = newcamd.

Where the line comes from and what is transmitted in it

With C-line, the receiver does not download keys permanently. Each time the channel package changes, it sends an ECM request to the server, the server decrypts it using a physical smart card and returns the CW (Control Word). The delay of this exchange is the ECM time, the main metric of connection quality.

Important: the line does not transmit the card itself, only responses to specific requests. This is why channels start to freeze with high ECM time — the CW does not arrive before the encryption period changes.

Setting up C-line in CCcam.cfg and in OScam

This is where the practice begins. The paths to the configs vary depending on the receiver firmware image, and this is a source of endless confusion on forums.

Path to the file /var/etc/CCcam.cfg and syntax

On most images (OpenPLi, OpenATV, OpenVision), the config file is located at/var/etc/CCcam.cfg. On older images like Gemini and some clones, you may find/usr/keys/CCcam.cfg. It's easy to check:

find / -name "CCcam.cfg" 2>/dev/null

Adding C-line to the config looks like this — just insert the line into the file:

# CCcam client lines

The lines are read from top to bottom. Multiple C-lines are fine, CCcam will try them in order. After editing the file, a restart of the daemon is needed:

# On systems with init.d:

No need to restart the receiver itself — just the daemon.

Connecting C-line via OScam (oscam.server, cccam protocol)

OScam is a more flexible alternative to CCcam, and many experienced users switch to it specifically for fine-tuning. C-line in OScam is specified in the file/etc/oscam/oscam.server or/usr/local/etc/oscam.server:

[reader]

The parameterdevice accepts host and port separated by a comma without spaces — this is important. If separated by a space, the reader will not start and there will be an unclear parsing error in the logs.

After editing oscam.server, restart:

/etc/init.d/oscam restart

CCcam version and nodeid parameters

The parametercccversion in OScam orCCCAM VERSION In CCcam.cfg affects how the server identifies the client. If the server is set to accept only clients of version 2.3.0, and you have 2.3.2 specified — the connection may be rejected or work unstably.

Parameternodeid (orcccnodeid in OScam) — a unique identifier for the client in the network. If you have multiple receivers with the same nodeid, the server may block all connections except the first one. In OScam, nodeid is generated automatically, but it can be set manually inoscam.conf in the section[global].

Ports, firewall, and connection check

CCcam works exclusively over TCP. UDP is not used. This means that if there is NAT or a firewall between your receiver and the server — the port from the C-line must be open and forwarded.

Which ports to open on the router and server

On the client side (your receiver), port forwarding is not needed — you initiate the outgoing connection. You just need to ensure that outgoing traffic to the required TCP port is not blocked by your router or provider.

The situation with CGNAT and mobile internet is a separate pain. If the receiver is connected via a 4G/5G modem or router with CGNAT, outgoing connections work fine. The problem arises only if you want to set up a server yourself — incoming connections through CGNAT cannot be forwarded without VPN or a tunnel.

The CCcam web interface listens on port16001 by default. It can be changed in CCcam.cfg:

WEBINFO LISTEN PORT : 16001

Port availability check (telnet, nc, ping)

Before digging into the configs — check if the server is available at all:

# Ping the host (checking only the availability of the IP, not the port):

If telnet hangs without output — the port is closed or filtered. If it immediately returnsConnection refused — the port is not being listened to on the server. If the connection is established and returns several unreadable bytes — CCcam/OScam on the server is working and waiting for a handshake.

Connection status in the CCcam web interface (port 16001)

Open in the browserhttp://IP-ресивера:16001. The sectionServers shows the status of each C-line: Connected/Disconnected, number of cards, supported CAID. The sectionECM shows the response time in real-time.

If the CAID column for the server is empty or shows CAIDs that are not in the package you need — the channels will not open, even with a Connected status.

Problem diagnosis: no channels, FREEZE, line drop

This is the most useful part. Most guides on cccam lines stop at the line format and say "insert and restart." What to do when this doesn't work — is explained by very few.

Line connects, but channels do not open

Connected status in the web interface, but when switching to an encrypted channel — black screen. Reasons:

• CAID mismatch. The source provides a map with CAID 0x0500 (Viaccess), while your channel requires CAID 0x0B00 (Conax). Check the CAID list in the Servers section and compare it with what the channel requires.
• Provider ID. Even with a matching CAID, the server may not have access to a specific provider or package within the encryption system. This is visible in the detailed ECM log.
• Version mismatch of CCcam. The server expects a client version 2.3.0, you have 2.3.2 or vice versa — there is a connection, but the cards are not being shared.
• BISS and PowerVu. Channels with these encryption systems do not open at all through a regular C-line — they need a separate SoftCAM with keys or special support on the server side. If you were given a line and told it works with BISS — clarify the protocol details.

Log for diagnostics:

 tail -f /tmp/CCcam.log

In the logs, look for lines with ECM and statuses found / not found .

Freezing and stuttering: ECM time and cache

Freezing is when the channel works, but the picture periodically freezes for 1-3 seconds. A classic symptom of high ECM time.

A good ECM time value is consistently up to 300-400 ms. At 500-700 ms, periodic stuttering begins. Above 800 ms — freezes are regular, making it impossible to watch.

Causes of high ECM time:

• Physical distance from the server (ping 150+ ms)
• Long chain of resharing: your server → intermediate resharing → another resharing → card. Each hop adds 50-200 ms.
• Source overload during prime time
• Channels with frequent key changes (some satellite packages change CW every 5-10 seconds instead of the standard 10)

In OScam, you can configure the cache of ECM responses through cachex, which reduces the actual number of requests to the server when switching channels.

Frequent disconnections and causes of instability

If the line disconnects and reconnects every few hours — look at the following:

• Dynamic IP for the client. If the server has tied your line to an IP address, and the provider has changed it — the connection will drop until the next re-authentication. Solution: VPN with a static IP or clarification with the source if IP binding is used.
• Connection limit. Most sources limit the number of simultaneous sessions on one line. If two receivers are connected with one C-line — one of them will regularly get disconnected.
• Blocking by nodeid. If the nodeid matches another client of the server, it may block one of them.
• Keepalive timeout. CCcam and OScam periodically send keepalive packets. If the network is unstable and the packet does not arrive on time — the server closes the connection. In OScam, the parameter reconnecttimeout in oscam.server regulates the behavior during a loss of connection.

How to assess the quality of the CCcam line when choosing a source.

When choosing a source of cccam lines, marketing descriptions can be ignored. We look at specific technical characteristics.

Objective criteria: ECM time, uptime, stability

A normal source honestly reports the following:

• Average ECM time for specific packages (should be up to 400 ms)
• Type of cards: local (physical cards on the server) or reshares. Local is always better — fewer hops, lower ECM time
• Supported CAID and a list of specific packages
• Limit of simultaneous connections per line
• Declared uptime (realistically — 98-99% per month; 100% is a lie)

Parametercccmaxhops in OScam (orCCCAM HOP in CCcam.cfg) allows you to limit the depth of reshare that you accept. A value of 1 means only local source cards, 2 — allows one level of reshare. The smaller, the more stable.

What to check during the trial period

If the source offers trial access (usually 24-48 hours) — use it properly:

• Switch between channels quickly and record the response time
• Test during prime time (evening Moscow time) — that’s when the server load is maximum
• Check specific channels from the packages you need, not random ones
• Look at the ECM time in the web interface or OScam logs, not just at the picture
• Wait for at least one key change of the package — stable sources handle it without freezes

Technical signs of an unreliable source

A bad source can be easily identified technically:

• ECM time jumps from 200 ms to 2000 ms over the course of an hour — a sign of overload or an unstable network
• In the Servers section of the web interface, many hops (3-4 levels) are visible — you are the last in the reshare chain
• Frequent reconnects in the logs even with a stable network on your side
• Different CAID disappear from the list and reappear — an unstable pool of cards
• When changing package keys, the line "hangs" for 30-60 seconds — the source updates CW slowly

Conflict of several C-lines with the same CAID — a separate story. If you have two lines in your config, both declaring CAID 0x0500, CCcam will send the ECM request to the first in the list and only switch to the second upon timeout. In OScam, this behavior is finely tuned through the priorities of reader groups inoscam.user — parametergroup andfallbacktimeout.