To claim this image is "better," we must compare it against the typical alternatives found in the wild. Most 800 series routers ship with one of the following:
Assuming TFTP server at 192.168.1.100, router IP 192.168.1.1:
| Component | Meaning | |-----------|---------| | | Platform: Cisco 800 Series (e.g., 861, 881, 891, 887, etc.) | | universalk9 | Universal image with K9 = cryptography support (SSL/VPN/encryption) | | mz | Memory: m = runs from RAM (not compressed), z = compressed image | | spa | SPA = Sub-Package Architecture (modular IOS packaging) | | 159-3.M10 | Version: 15.9(3)M10 — where M indicates Mainline release | | .bin | Binary file format executable for the router |
: It continues the process of removing weak encryption ciphers (e.g., dhe-aes-256-cbc-sha ) that were flagged as security risks in earlier iterations. 2. Maximum Stability for Legacy Hardware
To claim this image is "better," we must compare it against the typical alternatives found in the wild. Most 800 series routers ship with one of the following:
Assuming TFTP server at 192.168.1.100, router IP 192.168.1.1: c800universalk9mzspa1593m10bin better
| Component | Meaning | |-----------|---------| | | Platform: Cisco 800 Series (e.g., 861, 881, 891, 887, etc.) | | universalk9 | Universal image with K9 = cryptography support (SSL/VPN/encryption) | | mz | Memory: m = runs from RAM (not compressed), z = compressed image | | spa | SPA = Sub-Package Architecture (modular IOS packaging) | | 159-3.M10 | Version: 15.9(3)M10 — where M indicates Mainline release | | .bin | Binary file format executable for the router | To claim this image is "better," we must
: It continues the process of removing weak encryption ciphers (e.g., dhe-aes-256-cbc-sha ) that were flagged as security risks in earlier iterations. 2. Maximum Stability for Legacy Hardware Maximum Stability for Legacy Hardware