C2621 ISDN-BRI - idle Timer does´nt reset in spite of Traffic

[daulagiri]

Hi,

the idle-timer shown with "sh isdn a" doesßnt reset in spite of traffic

over the BRI-Interface.

Config with NAT to Outside Bri1/0

interface BRI1/0

ip address negotiated

ip nat outside

encapsulation ppp

no ip route-cache

no ip mroute-cache

dialer string 0123456

dialer-group 1

no snmp trap link-status

isdn switch-type basic-net3

no cdp enable

ppp authentication chap callin

ppp chap hostname xxxxxxxx

ppp chap password xxxxxxxx

After the Upgrade from 12.0.7T to 12.2.12T the Problem ist present.

The Connection wird hard reseted after the Time.

thanks

Ronny

[h1]

Hi Ronny, unluckily your Config is not complete. I think your "interesting traffic" for dial on demand - which also triggers the idle timer - is not correct. Maybe because of NAT: it is not sufficient to have an ACL with your inside network, because in this case your "negotiated address" does not trigger the timer. Test it with something like "any any".

Michael

[daulagiri]

Hi Thanks, that the right Solution, but whats wrong ??

Hier the other lines in config:

ip nat inside source list 5 interface BRI1/0 overload

access-list 1 permit 172.20.10.150

access-list 1 permit 172.20.203.41

access-list 1 permit 172.20.200.19

access-list 1 permit 172.20.200.7

access-list 1 permit 172.20.10.42

access-list 1 permit 172.20.10.23

access-list 1 permit 172.20.10.25

access-list 1 permit 172.20.10.3

access-list 1 permit 172.20.10.4

access-list 1 deny any log

access-list 2 permit 172.20.32.29

access-list 2 permit 172.20.10.4

access-list 2 deny any log

access-list 5 permit any log

!

dialer dnis group 1

dialer-list 1 protocol ip list 1

dialer-list 2 protocol ip list 2

dialer-list 5 protocol ip permit

Is this OK ??