[EMAIL PROTECTED] <[EMAIL PROTECTED]> 2007-06-03: > This setup works on Cisco and Zyxel ADSL as the WAN interface is using > the IP from the LAN side and the LNS sees both a /32 and a /30 > route...not sure about other xDSL CPEs though (o;
In this setup, the PPP endpoint address of the CPE router is the same as it's LAN address, and the customer still gets his /30 network to use as expected, i.e. there's an address left for, say, a server. In the vtx case (if correct), there is nothing of the /30 left to the customer to use, except the WAN address assigned via PPPoX. Granted, this does not sound very sane, since the customer pays for a /30 which he does not get. Maybe the vtx engineers just had bad luck explaining the above to the customer. Cheers -Dan > > > cheers > rick > > > Daniel Roethlisberger schrieb: > >It seems that vtx has some very strange way of configuring the /30 > >subnet when customers order 4 fix IP addresses. > > > >Normally when someone orders a /30, the ADSL router's PPP interface > >would get an address from an unrelated address range. The 4 addresses > >from the customer's /30 subnet can be used by the custumer for the > >network and broadcast addresses (-2), the router's LAN interface (-1), > >leaving one address for a server or desktop machine. > > > >However, this seems not to be the case at vtx.ch. As two vtx engineers > >explained to a (tech-savvy dipl. Inform.) customer, they use the > >addresses from the /30 subnet for the PPP link between their last router > >and the customer's ADSL router. So in effect, this means ordering a /30 > >subnet (the 4 fix IP addresses option) from vtx gets you the same as > >ordering a single fix IP address -- you get a static address on your > >ADSL router's PPPoA/PPPoE interface, period. To actually use the static > >address on a server/desktop, you need to either configure destination > >NAT on your router or operate it in bridging mode and run PPPoE directly > >from the server/desktop. > > > >Can anybody confirm that this is current practice at vtx? Are other > >providers doing the same? > > > >-Dan > > > > _______________________________________________ > swinog mailing list > swinog@lists.swinog.ch > http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog -- Daniel Roethlisberger <[EMAIL PROTECTED]> _______________________________________________ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
