i need some help. i have a cisco 3640 which i am using to connect to the internet. i also want to use NAT. the inside interface is an ethernet interface, while the outside interface is a serial subinterface in a frame relay point to point config. whe...

I have two sites which i am connecting by VOIP. there are cisco 3640's at each of the sites each with 8 FXO ports connecting to PABX's at each site. the problem is when calls are made the FXO ports remain busy even after the line has been dropped. on...

i have a watch dog timeout error on a 3660 and this makes the router to restart even before it finishes booting ( immediately it decompresses the image)the error code it gives is:pc=0x6002659csp=0x61085320could anyone tell me if this a hardware or so...

i have 3620 which was mistakenly upgraded with an ios meant for a 3640. i have tried to recover it using xmodem. it appears i'll have to delete the old ios image before i can restore the valid one. how can i do this from rommon. thanks