has anyone experiences with the BRI at the 800 ADSL over ISDN Routers (like 836).
I wonder what's the difference between the feature sets.
OOB-Management and Dial-Backup over ISDN is described in the Datasheet as feature of the 'IP/FW/IPSec-3DES-PLUS-Dial-Backup' IOS only, but in my tests it seems that the BRI is a fully functionaly routed Interface in all feature sets.
I think there is no more need to buy another ISDN-Router like 801 or 803 when I have full ISDN connectivity at the ADSLoISDN-Routers with standard feature set. And with the 'DMZ-Ethernet' feature I have even a secondary routed Ethernet-port and there is no more need to buy a 831.
exactly, the ISDN interface on the (836) router is fully functional. I have used the ISDN interface as a backup interface before, not sure which feature set that was with, but it worked just fine...
For dial Backup and isdn to work, you only need a basic featureset like IP and IP PLUS. If you want to add more layers like Firewall etc. then you need appropriate featureset.
I the 836 Datasheet (http://www.cisco.com/en/US/partner/products/hw/routers/ps380/products_data_sheet09186a008014ee18.html) you can see that the default featureset already has firewall and VPN features ('IP/FW/IPSec 3DES default feature set') even if it is called CISCO836-K9-64 (Cisco 836 ADSL over ISDN Router-64MB) in the Cisco-pricelist.
I hope that's the same with the 876 which is called CISCO876-K9 (ADSLoISDN Security Router) in the pricelist.