CPC 100 in a Network
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Firewall and anti-virus software
Firewall and antivirus software often block data traffic on several ports of the
Ethernet interface. This may prevent proper communication between CPC and
PC. Whenever communication problems occur, try to temporarily deactivate
firewall and/or antivirus software that are installed on your computer.
During installation of CPC Explorer you are asked to open some ports on
Windows firewalls. It is recommended to allow this. Otherwise, the "find"
algorithm will not work.
DHCP allocator service
In most PC networks there is a DHCP server that provides the connected
network nodes with valid addresses. That way, every PC in the network is
assigned a unique address.
Because there is no DHCP server present when a CPC is connected directly to
a PC (point to point), CPC 100 is capable of providing the PC with a valid
address as long as there is no server detected and CPC Explorer is running on
the PC. The address is chosen from the Auto-IP address range, so it does not
interfere with other addresses within the network. It is also assured that only
those PCs are provided with an IP address that run CPC Explorer.
Note: By default, CPC Explorer uses port 4987 to find connected CPC sets,
and port 21 (FTP port) to download data from the CPC. It also needs
the possibility to send and receive ICMP data packages ("PING"
command has to work).
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