There is a checksum problem with the traceroute packets generated by the gRouter. I am fixing it now. Will release the revised code very soon.
-mahes +-------------------------------------------------------------------------+ | Muthucumaru Maheswaran Web: www.cs.mcgill.ca/~maheswar | | School of Computer Science Email: [EMAIL PROTECTED] | | McGill University Phone: (514) 398-1465 | | 213B McConnell Engineering Building Fax: (514) 398-3883 | | 3480 University Street | | Montreal, QC H3A 2A7, Canada | +-------------------------------------------------------------------------+ On Sat, 20 Sep 2008, Daniel Ng wrote: > For the auto-routing between 3 routers, an easier fix is just to compile > twice, without disabling anything. This was tested with auto-routing and > auto-gen IP/MAC both enabled. > ________________________________________ > From: Alexis Malozemoff [EMAIL PROTECTED] > Sent: September 19, 2008 7:04 PM > To: Daniel Ng > Cc: [EMAIL PROTECTED] > Subject: Re: ssh on UMLs > > SSH works. You need to start sshd on the server. The command is > /usr/sbin/sshd (you need the full path). > > I've created the topology in parts 2 and 3 in GINI and it works fine. > You may need to fiddle around with saving the file and toggling route > computation, but in the end I've made it work. Are you getting all > the "nexthop address not found" errors when compiling? That's what I > got before, but randomly toggling the ip/mac and route generation > fixed it. Maybe something we should fix in the next version... > > For traceroute, I believe the issue is with the router. Maybe the > professor can confirm this. > > Also, is the password for the filesystem, just4now, documented > anywhere? Should I send an e-mail to everyone in the class? > Otherwise, they can't really use SSH. > > Alex > > On Fri, Sep 19, 2008 at 5:28 PM, Daniel Ng <[EMAIL PROTECTED]> wrote: > > We tried ssh'ing between UMLs and this still doesn't work. It seems that > > assignment 1 will need this feature. Is it going to be fixed? We keep > > getting the port 22: Connection refused error. > > > > Also, we ran into a strange bug when designing the second topology of the > > assignment. It seems that interconnecting 3 routers in a triangular shape > > does not auto generate the routes properly. It does most of the job, but a > > few nexthop addresses were incomplete. Fixing this in the code might be > > tricky so I'm not sure if I can finish it over the weekend, but I'll give > > it a try. Fixing it manually is not hard. We can just disable autorouting > > and then fill in any incomplete (e.g. 192.168.1.) addresses. > > > > Another problem we ran into is using traceroute between 2 UMLs. I vaguely > > remember using traceroute with GINI before and it worked fine, but maybe > > that was with the old router. When we do traceroute now, it only gives us > > a bunch of *s instead of addresses. From reading the man pages, it seems > > that this problem is usually the case when ttl for the packets is set too > > low. Do you know if this is because of the router? > > > _______________________________________________ > gini mailing list > gini@cs.mcgill.ca > http://mailman.cs.mcgill.ca/mailman/listinfo/gini > _______________________________________________ gini mailing list gini@cs.mcgill.ca http://mailman.cs.mcgill.ca/mailman/listinfo/gini