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G&R

Deriving -NS for FDDI hosts

All Ethernet MAC addresses are in ‘LLC’ format. All FDDI addresses are in

‘SMT’ format. In SMT format you will see the address in the MSB (most

significant bit) form. You will however normally, for instance in the case where

you connect via an Ethernet port of a LAN Extender, see the LLC format only.

If you connect to an FDDI adapter directly or by an FDDI port of a LAN

Extender, you must convert the MAC address to SMT. The way you do this is

to read each octet backwards as shown below:

Example FCP8 Ethernet MAC address = 080038101054

08 = 0000 1000 binary, backwards: 0001 0000 = 10

00 = 00

38 = 0011 1000 0001 1100 = 1C

10 = 0001 0000 0000 1000 = 08

10 = = 08

54 = 0101 0100 0010 1010 = 2A

So the address to use here is 10001C08082A. A utility, Gmacfix, to convert

Ethernet (LLC MAC) format addresses to SMT format is included in the Gline

package. See the chapter on DSA test utilities on page 109.

TP - Transport Provider

TP name [-WHO BJAMES | BULL | EICON | GAR | HP | MARBEN | SUN ]

[-ATTACH xxxx] [-DFLT] [-UNAME xxxx]

Defines a local transport provider. Although not strictly necessary on some

platforms when there is only one stack installed we advise that it is configured

with a minimum of the -WHO parameter to define the provider.

-WHO explicitly defines the provider.

-ATTACH is used to instruct the software how to attach to the transport service.

For the G&R/RFC1006 transport (all platforms):

Specify the value ‘rfc’ in order to signal the use of RFC1006 over

TCP transport. Please note that in order to be able to accept incoming

connections when using RFC1006 you must start the DSA listener, even

if only one program is accepting connections, and it must be started

from root, since only root can access port 102, which is reserved for

RFC1006.

Gline Line Handlers and Configuration

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Eicon Networks CX1 Installationshandbuch Seite 86