HWADD 01 02:00:FE:DF:00:43
ROUTE 00 172.021.003.032 255.255.255.224
Figure 2: OSA Address Table (OAT) File Syntax
Dev
This is the base device address.
Mode
This is the operation mode: IP or SNA. (Note: The SNA operation mode is currently
not implemented.
Port
This is the virtual (relative) adapter number.
Entry
This applies only for IP Mode and specifies where a packet with an unknown IP
address is forwarded. PRI is the primary default entry, SEC is the entry to use
when the primary is not available and NO specifies that this is not a default entry.
n.n.n.n
This specifies the home IP address.
When the operation mode is IP specify only the even (read) device number dev. The odd (write) address
will be created automatically. Additionally two other statements can be included in the Address Trans-
lation file. These are the HWADD and ROUTE statements.
Use the HWADD statement to specify a hardware (MAC) address for a virtual adapter. The first para-
meter after the HWADD specifies the relative adapter for which the address is applied.
The ROUTE statement is included for convenience. It allows the ‘hercifc’ program to create a network
route for this specific virtual adapter. Please note that it is not necessary to include point-to-point routes
for each IP address in the table. This is done automatically by the emulation module.
The read / write devices can be swapped by coding the odd address of the even-odd pair in the OAT. Up
to 4 virtual (relative) adapters (00-03) are currently supported.
If no Address Translation file is specified, the emulation module will create the following:
- An ethernet adapter (port 0) for TCP/IP traffic only.
- Two device addresses (devnum and devnum+1).
6.9.6.5 Examples
Example 1:
Define LCS (LAN Channel Station emulation) adapters on device addresses 0440 and 0441. The name of
the TUN/TAP special character device is “/dev/net/tun”. The IP address of the Hercules guest OS side is
192.168.200.2.
0440.2 LCS -n /dev/net/tun 192.168.200.2
or
0440 LCS -n /dev/net/tun 192.168.200.2
0441 LCS -n /dev/net/tun 192.168.200.2
