23 Jan
2016
23 Jan
'16
11:33 a.m.
I am doing a bit of VAXELN programming and I am trying to get the Datagram
Service to only read packets of a certain EtherType, but unless I use
promiscuous mode, nothing is read. Here is the relevant code:
form.format = ELN$K_NI_PTT;
form.mux.ptt = 0x0360;
mode = 0;
pad = 0;
eln$ni_connect(&status, &portalId,
config.clist.list[i].control_port, &dispatchPort, &form, NULL, &mode, NULL,
NULL, NULL, NULL, NULL, &pad);
Anyone know why this might not return any packets at all when I wait on the
port?
Regards
Rob
24 Jan
24 Jan
1:34 a.m.
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Robert
Jarratt
Sent: 23 January 2016 19:33
To: General Discussion: On-Topic and Off-Topic Posts
<cctalk at classiccmp.org>
Subject: VAXELN Datagram Service
I am doing a bit of VAXELN programming and I am trying to get the Datagram
Service to only read packets of a certain EtherType, but unless I use
promiscuous mode, nothing is read. Here is the relevant code:
form.format = ELN$K_NI_PTT;
form.mux.ptt = 0x0360;
mode = 0;
pad = 0;
eln$ni_connect(&status, &portalId,
config.clist.list[i].control_port,
&dispatchPort, &form, NULL, &mode, NULL,
NULL, NULL, NULL, NULL, &pad);
Anyone know why this might not return any packets at all when I wait on
the
port?
My mind cleared overnight, and I realised what the problem is. To read the
packets I am interested in (DECnet), I need to tell the adapter the special
DECnet addresses and configure those as multicast addresses.
Problem solved.
Regards
Rob
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