[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
AW: [swinog] vtx ADSL /30 subnet practice
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
Re: [swinog] vtx ADSL /30 subnet practice
Evnin' 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; 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
Re: [swinog] vtx ADSL /30 subnet practice
Hi, 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. or if you have a capable adsl router, you can nat all four addresses to internal server addresses 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? this seems like a wierd setup... so for each /30 customer they would set up one of the four ip addresses on the interface of their provider router? I don't know about current practice, but older vtx (ex-tiscali, to be precise), the practice was to get an unrelated ip on the wan interface. Jiri ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
Re: [swinog] vtx ADSL /30 subnet practice
Can anybody confirm that this is current practice at vtx? Are other providers doing the same? On a cybernet 4-IP-Addresses ADSL setup I can actively use the two middle IPs in a BRouter setup, the router using the lower address. The vtx setup you describe is indeed kind of useless. If it's truth then I guess the vtx people need an update on best practice recomendations. Regards, Jean-Pierre -- HILOTEC Engineering + Consulting AG - Langnau im Emmental Energietechnik und Datensysteme: Server, PCs, Linux, Telefonanlagen, VOIP, Hosting, Datenbanken, Entwicklung, Komplettlösungen für KMUs Tel: +41 34 402 74 00 - http://www.hilotec.com/ ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
