Thank you Jutta for pointing me out to that thread! I looked at it but could not find the full configuration which is discussed there and using the hints there I am not able to obtain an ip from A1. CD light is table, vdsl interface is up, dialer is up, though. I tried an alternate configuration
http://glazenbakje.wordpress.com/2010/0 ... dutch-isp/but it did not help.
I started to worry whether A1 Gigaspeed is compatible with 887v-k9. I know 887va is compatible because it appears on A1 white list. Maybe anyone here knows if 887v-k9 (that is without ATM interface) should work?
As for your question Gorbag, I think, as Wicked_one hinted, that cisco 887v is a top quality equipment. It is awful to configure for non-professional (like me) but once I manage to get a stable configuration I may get up-times of many months or even years.