HECnet - Revision history

Larsbrinkhoff: Home page moved.

2022-03-04T10:05:00Z

Home page moved.

Neozeed at 20:01, 15 February 2009

2009-02-15T20:01:26Z

Neozeed: /* Patch to bridge to add TCP/IP support */

2009-02-15T19:51:51Z

‎Patch to bridge to add TCP/IP support

Neozeed at 19:51, 15 February 2009

2009-02-15T19:51:25Z

Neozeed at 19:46, 6 February 2009

2009-02-06T19:46:19Z

Lucky at 01:57, 17 May 2007

2007-05-17T01:57:06Z

Lucky: New page: Category:DECnet

2007-05-17T01:56:53Z

New page: Category:DECnet

New page

[[Category:DECnet]]

@@ Line 1: / Line 1: @@
-The HECnet is a network of various DECNET machines across the internet.  Using a [http://www.update.uu.se/~bqt/bridge.tar specialized bridge program], people have bridged together their systems.
+The HECnet is a network of various DECNET machines across the internet.  Using a [http://mim.stupi.net/bridge.tar specialized bridge program], people have bridged together their systems.
-From the [http://www.update.uu.se/~bqt/hecnet.html homepage]:
+From the [http://mim.stupi.net/hecnet.htm homepage]:
 <pre>
 What is HECnet?

← Older revision		Revision as of 20:01, 15 February 2009
Line 16:		Line 16:
	</pre>		</pre>

		+	There is also an Italian HECnet with quite a few nodes online...
		+	*http://decnet.ipv7.net/

	== Patch to bridge to add TCP/IP support ==		== Patch to bridge to add TCP/IP support ==

@@ Line 18: / Line 18: @@
 == Patch to bridge to add TCP/IP support ==
-The following will add TCP/IP support into the above bridge program.  On the [[SIMH Networking]] page you can find the code section to compile a HECnet client into [[SIMH]].
+The following will add TCP/IP support into the above bridge program.  On the [[Networking with SIMH]] page you can find the code section to compile a HECnet client into [[SIMH]].
 <pre>

← Older revision		Revision as of 19:51, 15 February 2009
Line 16:		Line 16:
	</pre>		</pre>

		+
		+	== Patch to bridge to add TCP/IP support ==
		+	The following will add TCP/IP support into the above bridge program. On the [[SIMH Networking]] page you can find the code section to compile a HECnet client into [[SIMH]].
		+
		+	<pre>
		+	--- bridge.c Mon Aug 6 07:50:45 2007
		+	+++ bridge-ip.c Sun Feb 15 12:23:43 2009
		+	@@ -61,6 +61,9 @@
		+	#define ETHERTYPE_LAT 0x6004
		+	#define ETHERTYPE_MOPDL 0x6001
		+	#define ETHERTYPE_MOPRC 0x6002
		+	+#define ETHERTYPE_IP 0x0800
		+	+#define ETHERTYPE_ARP 0x0806
		+	+#define ETHERTYPE_REVARP 0x8035
		+
		+	#define MAX(a,b) (a>b?a:b)
		+
		+	@@ -71,6 +74,9 @@
		+
		+	struct bpf_insn insns[] = {
		+	BPF_STMT(BPF_LD+BPF_H+BPF_ABS, 12),
		+	+ BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, ETHERTYPE_REVARP, 7, 0),
		+	+ BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, ETHERTYPE_ARP, 6, 0),
		+	+ BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, ETHERTYPE_IP, 5, 0),
		+	BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, ETHERTYPE_MOPRC, 4, 0),
		+	BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, ETHERTYPE_MOPDL, 3, 0),
		+	BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, ETHERTYPE_LAT, 2, 0),
		+	@@ -95,8 +101,8 @@
		+	When data arrives, we filter, process and send it out again.
		+	*/
		+
		+	-typedef enum {DECnet, LAT} pkttyp;
		+	-#define MAXTYP 2
		+	+typedef enum {DECnet, LAT, IP} pkttyp;
		+	+#define MAXTYP 3
		+
		+	struct BRIDGE {
		+	char name[40];
		+	@@ -326,6 +332,7 @@
		+	if(strcmp(buf,"[lat]") == 0) mode = 2;
		+	if(sscanf(buf,"[source %d.%d]", &area, &node) == 2) mode = 3;
		+	if(strcmp(buf,"[relay]") == 0) mode = 4;
		+	+ if(strcmp(buf,"[ip]") == 0) mode = 5;
		+	if(mode < 0) {
		+	printf("Bad configuration at line %d\n%s\n", line,buf);
		+	exit(1);
		+	@@ -352,6 +359,10 @@
		+	break;
		+	case 4:
		+	break;
		+	+ case 5:
		+	+ if (!add_service(buf,IP,"IP"))
		+	+ printf("%d: IP bridge %s don't exist.\n", line, buf);
		+	+ break;
		+	default:
		+	printf("weird state at line %d\n",line);
		+	exit(1);
		+	@@ -380,6 +391,14 @@
		+	is_ethertype(data, ETHERTYPE_MOPRC));
		+	}
		+
		+	+int is_ip(struct DATA *data)
		+	+{
		+	+ return (is_ethertype(data, ETHERTYPE_IP) \|\|
		+	+ is_ethertype(data, ETHERTYPE_ARP) \|\|
		+	+ is_ethertype(data, ETHERTYPE_REVARP));
		+	+}
		+	+
		+	+
		+	unsigned long timedelta(struct timeval old)
		+	{
		+	struct timeval now;
		+	@@ -496,6 +515,8 @@
		+
		+	if (is_decnet(d)) d->type = DECnet;
		+	if (is_lat(d)) d->type = LAT;
		+	+ if (is_ip(d)) d->type = IP;
		+	+
		+
		+	if (bridge[d->source].types[d->type] == 0) return;
		+	if (d->type == -1) return;
		+	</pre>

← Older revision		Revision as of 19:46, 6 February 2009
Line 1:		Line 1:
		+	The HECnet is a network of various DECNET machines across the internet. Using a [http://www.update.uu.se/~bqt/bridge.tar specialized bridge program], people have bridged together their systems.
		+
		+	From the [http://www.update.uu.se/~bqt/hecnet.html homepage]:
		+	<pre>
		+	What is HECnet?
		+
		+	HECnet is a DECnet that connects different people who play around with different DEC machines.
		+	The network should not be regarded as a serious networking setup, nor should it be expected
		+	to work 24/7. It's a hobby project between people who think it's fun to create a DECnet network.
		+	HECnet is basically a DECnet phase IV network. Currently, the main router is a PDP-11
		+	running RSX-11M-PLUS. The machine is located in Uppsala, Sweden.
		+
		+	The connectivity between nodes can be anything that works. The current connectivity is with
		+	an ethernet bridge between sites. Other solutions that have been used are a virtual serial
		+	async. connection talking DDCMP. Other possibilities are GRE and DECnet over IP.
		+	</pre>
		+
		+
		+
	{{stub}}		{{stub}}
		+

	[[Category:DECnet]]		[[Category:DECnet]]

← Older revision		Revision as of 01:57, 17 May 2007
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		+	{{stub}}
		+
	[[Category:DECnet]]		[[Category:DECnet]]