When configuring this image in GNS3 or Dynamips, the following parameters are recommended based on community usage: c3660-a3jk9s-mz.124-25d.bin Platform c3600 (c3660) Minimum RAM MD5 Hash 4ac7e947f13c189d746149dc74992890 Proposed Idle-PC 0x606071f8 Setting Up Idle-PC