> -----Original Message----- > From: William Hooper [mailto:[EMAIL PROTECTED] > Sent: vrijdag 20 juni 2003 14:48 > To: [EMAIL PROTECTED] > Subject: RE: VNC over different subnet mask > > > "Beerse, Corni" said: > >> -----Original Message----- > >> From: [EMAIL PROTECTED] > [snip] > >> When I try to connect with VNC from my PC (old > >> scope) to a new PC (new > >> scope) it fails. I've changed my subnet mask to > >> 255.255.248.0, but it stills fails. Is there anyway around it? > > > > As long as a machine thinks it is on the old network, all addresses > > outside > > this network are forwarded to the defined gateway. > [snip] > > Only if the gateway has its network-connection configured > for the old > > network and has updated routing tables to route messages to the new > > network > > (but not in the old network) back to the old network, then > you might get a > > connection. > > Nope. Even if the gateway knows that it is the same wire, > the new machine > doesn't think it needs to use the gateway. The purpose of > subnet masking > is to avoid using the gateway.
You're right, the way back (from new to old) also has some problems: the old machine to receive the message might not pick it up since it comes from an 'other' network... > > > Hence, best to do a big-bang update of all machines: proper > operating > > systems can do that on the fly.[snip] > > Agreed. There is still the question of why it doesn't work > after changing > the subnet mask to be the same. It is really a TCP/IP > problem, not a VNC > one. Waiting on the results of the ping as suggested by Dave Warren. Waiting can do a lot here, the mac-adress-tables in all machines (mostly routers) must be updated that the mac address has moved to a new ip-network. This most times goes automatic, specially if the changed machine has send some stuff over the network, like some pings to some machines in old and new network. CBee _______________________________________________ VNC-List mailing list [EMAIL PROTECTED] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
