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To: peter@haywire.dialix.com (Peter Wemm)
cc: freebsd-hackers@freebsd.org
Subject: Re: [Q] Traceroute and source routing 
In-reply-to: Your message of "05 Nov 1995 19:53:58 +0800."
             <47i8km$rvf$1@haywire.DIALix.COM> 
Date: Sun, 05 Nov 1995 10:44:40 -0800
From: "Amancio Hasty Jr." <hasty@rah.star-gate.com>
Sender: owner-hackers@freebsd.org
Precedence: bulk

>>> Peter Wemm said:
 > jmb@kryten.Atinc.COM (Jonathan M. Bresler) writes:
 > 
 > >	i want to exmaine the connectivity of various hosts (happen to be 
 > >those in australia on our mailing lists).  i want to see route the 
 > >packets take from freefall to those hosts and the routes that exist from 
 > >one of those hosts to another.
 > 
 > >	so...i want a source route option on traceroute.
 > 
 > >	suggestions ??    pointers ??   code ??  
 > 

Try snmp by querying each router along a path to find 
the route. This is  assuming that the routers are running snmp.
You can use the cmu snmp tools ported to FreeBSD. If memory
does not fail me they are in the xperiment ports section.

204.188.121.17 is my ascend pipeline 50 ISDN router.
rah# snmpwalk -v 1 204.188.121.17 public system
system.sysDescr.0 = "Ascend Pipeline BRI S/N: 5090526 Software +4.4+"
system.sysObjectID.0 = OID: enterprises.529.1.3
system.sysUpTime.0 = Timeticks: (12613500) 1 day, 11:02:15
system.sysContact.0 = "hasty@star-gate.com"
system.sysName.0 = "star-gate.com"
system.sysLocation.0 = "Bayside Village 408"
system.sysServices.0 = 14

rah# snmpwalk -v 1 204.188.121.17 public . | grep -i hop
ip.ipRouteTable.ipRouteEntry.ipRouteNextHop.0.0.0.0 = IpAddress: 204.188.119.2
ip.ipRouteTable.ipRouteEntry.ipRouteNextHop.127.0.0.1 = IpAddress: 127.0.0.1
ip.ipRouteTable.ipRouteEntry.ipRouteNextHop.204.188.119.0 = IpAddress: 204.188.119.2
ip.ipRouteTable.ipRouteEntry.ipRouteNextHop.204.188.121.0 = IpAddress: 204.188.121.17
ip.ipRouteTable.ipRouteEntry.ipRouteNextHop.204.188.121.17 = IpAddress: 204.188.121.17

Have fun,
	Amancio