I have just loaded an 877 with 15.1 IOS
the config is the same as i was using with 12.4
If the is no traffic through the modem for about 10 mins the ATM seems to go to sleep.
ping atm int a0 0 34 seg give no response
I can issue the " shut" "no shut" command to int ATM0 but this doesnt help.
Also tried disconnecting the DSL cable waiting 1 minute then plugging back in
Only way to get the ATM working is to reload the 877
With 12.4 i didnt have this problem, and i had ADSL firmware 4.0.15 loaded (adsl_alc_20190.bin)
Is there something new in 15.1 i am missing to keep it alive constantly
interface ATM0 description Physical ADSL (ATM) interface no ip address no atm ilmi-keepalive ! interface ATM0.1 point-to-point description Virtuele ADSL sub-interface ip address dhcp ip nat outside ip virtual-reassembly in atm route-bridged ip pvc 0/34 encapsulation aal5snap