[nsp] Ethernet/G.703 converter & Cisco G.703 interface

[Stefan Simko]

Hi
if the convertor uses PPP half bridge,
you should be able to configure it with:

interface Serial0:0
 ip address <IP address from the ethernet range>
 encalpsulation ppp
 ppp bridge ip

I know of no other way how to encapsulate ethernet in serial protocol
there might be some jumpers on the convertor to change the CRC,
clocking etc.


S.
 
> sthaug at nethelp.no wrote:
>>>This could be the Cisco-HDLC header.  Or something else prepended by
>>>the "Cisco half-bridge" to the packets.
>> 
>> 
>> It looks like Cisco HDLC. From
>> 
>> 	http://www.nethelp.no/net/cisco-hdlc.txt
>> 
>> | The first ("address") octet is set to 0x0F for unicast packets and 0x8F
>> | for broadcast packets. Broadcast just means that the higher-level protocol
>> | thought this was a broadcast packet; cisco doesn't support multidrop
>> | HDLC at this time.
>> | 
>> | The second ("control") octet is always 0.
>> | 
>> | The next two octets are a 16-bit protocol code, sent most-significant-first.
>> | These codes are usually Ethernet type codes. cisco has added some codes to
>> | support packet types that don't appear on Ethernets. The current list of codes
>> | is as follows:
>> ...
>> | TYPE_BRIDGE             0x6558  Bridged Ethernet/802.3 packet
>> 

> So, as you have pointed out, it becomes a question of what does the 
> converter expect/support.  Will it, for example, be happy if this was a PPP
> connection with bridging configured.  If so, his setup *might* work.





--
Stefan Simko
Specialist IP Service Development
GTS
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