Example 2:

Define 3088 CTC adapters on device addresses 0E20 and 0E21. The device/protocol type is CTCI
(Channel-to-Channel link to Win32 TCP/IP stack). The WinPcap device driver capture buffer has to be set
to 2048 KB, the TunTap32 I/O buffer size has to be set to 128 KB. The IP address of the guest operating
system running under Hercules is 192.168.1.99 and the MAC address of the network adapter to use is
00-80-B3-E1-DF-69.

0E20.2 3088 CTCI -n 00-80-B3-E1-DF-69 -k 2048 -i 128 192.168.1.99 0.0.0.0

or

0E20 3088 CTCI -n 00-80-B3-E1-DF-69 -k 2048 -i 128 192.168.1.99 0.0.0.0
0E21 3088 CTCI -n 00-80-B3-E1-DF-69 -k 2048 -i 128 192.168.1.99 0.0.0.0

Example 3:

Define 3088 CTC adapters on device addresses 0E20 and 0E21. The device/protocol type is CTCI
(Channel-to-Channel link to Linux TCP/IP stack). The IP address of the guest operating system running
under Hercules is 192.168.1.99, the host IP address (the network adapter) to use is 192.168.1.100.

The maximum transmission size (MTU) should be 1492 bytes. The WinPcap device driver buffer size has
to be set to 1024 KB and the TunTap32 I/O buffer size to 256 kB. Additionally debugging output has to be
shown on the Hercules console.

0E20.2 3088 CTCI -k 1024 -i 256 –t 1492 –d 192.168.1.99 192.168.1.100

or

0E20 3088 CTCI -k 1024 -i 256 –t 1492 –d 192.168.1.99 192.168.1.100
0E21 3088 CTCI -k 1024 -i 256 –t 1492 –d 192.168.1.99 192.168.1.100

6.9.3 CTCT (Channel-to-Channel emulation via TCP Connection)

6.9.3.1 Function

This is an emulated Channel-to-Channel adapter to another Hercules system. CTCT only supports IP
traffic and cannot be used to transport NJE, SNA, PVM, etc. type payloads. This may change in the
future.

6.9.3.2 Syntax

Descriptive

CTCT lport rhost rport bufsize

Diagram

Êʬ¬¬ ¬¬¬ CTCT ¬¬¬ lport ¬¬¬ rhost ¬¬¬ rport ¬¬¬ bufsize ¬¬¬¬¬¬¬¬¬¬¬ÊÍ

6.9.3.3 Parameter

devaddr

This is the device address.

CTCT

This specifies the CTCT device/protocol type.

lport

Specifies the local TCP port. This is the TCP port that Hercules will listen on for this
CTC adapter.

rhost

Specifies the remote host. This is the name or IP address of the remote host sys-
tem that Hercules is running on, not the name or IP address of the OS running
under this instance of Hercules.

rport

Specifies the remote TCP port. The rport parameter on this system must match the
lport parameter on the remote system and vice versa.

bufsize

Specifies the buffer size for the link. If this link is used for IP traffic this parameter
should be more than the MTU of the interface definition in the OS TCPIP stack.