Hi James, > > ppp0:5, IP address = x.x.x.237 > > That should work, though it's perhaps not how I'd handle it. I'm definitely in 'learning mode' -- how *would* you handle it? > > What should be the NETMASK for the primary 'ppp0'? /29 or /32? > > And for each of the aliases? > > They're all /32 -- individual IP addresses. > > PPP creates point-to-point interfaces. It's not a broadcast-type > medium, like Ethernet. There's no "subnet" as far as the interface is > concerned, but rather just two arbitrary IP nodes connected together. > > That's why the link has a "local" address and a "remote" address, and > no "broadcast" address. It's not a subnet. "point to point". You know, that simply never hit home. Thanks for a simple/clear explanation! and, of course, you're right ... @ ifconfig, I see, for eth# interfaces, e.g. inet addr:10.0.0.100 Bcast:10.0.0.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1492 Metric:1 whereas for ppp# interfaces, ppp0:5 Link encap:Point-to-Point Protocol inet addr:x.x.x.227 P-t-P:y.y.y.y Mask:255.255.255.255 UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Metric:1 i.e., no BROADCAST > Setting a /29 on a PPP interface should have no effect. The system > should be smart enough to know that the right answer is /32. The system maybe was ... as for me ;-) Thanks again! Geri :-) -- To unsubscribe from this list: send the line "unsubscribe linux-ppp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html