We have on ADSL an /24 The Broadcast adresses xx.xx.xx.0 and xx.xx.xx.255 arn't to take And the xx.xx.xx.1 is for the Router this is correct.
If the costumer are useing 4 IP's he must book 8 IP's than he can use 5 IP's This is normal... Greetings X. Aerni > -----Ursprüngliche Nachricht----- > Von: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Im Auftrag von Daniel > Roethlisberger > Gesendet: Sonntag, 3. Juni 2007 21:23 > An: [EMAIL PROTECTED] > Betreff: [swinog] vtx ADSL /30 subnet practice > > 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 > > -- > Daniel Roethlisberger <[EMAIL PROTECTED]> > _______________________________________________ > swinog mailing list > swinog@lists.swinog.ch > http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog > _______________________________________________ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
