https://cisco.cumt.edu.cn/ciscodown/en_CCNA1_v31.zip
https://cisco.cumt.edu.cn/ciscodown/en_CCNA2_v31.zip
https://cisco.cumt.edu.cn/ciscodown/en_CCNA3_v31.zip
https://cisco.cumt.edu.cn/ciscodown/en_CCNA4_v31.zip
or mirror:
https://client.prodigy.ro/kit/CSC/3.1/en_CCNA1_v31.zip
https://client.prodigy.ro/kit/CSC/3.1/en_CCNA2_v31.zip
https://client.prodigy.ro/kit/CSC/3.1/en_CCNA3_v31.zip
https://www.net130.com/ccna/ccna/Cisco%20Press%20CCNA%20INTRO%20Exam%20640-821%20640-801%20(2004).rar
https://www.net130.com/ccna/ccna/CCN...%20Routers.rar
https://www.net130.com/ccnp/jc/cisco-642-811.rar
https://www.net130.com/ccnp/jc/Cisco...201%20v3.0.rar
https://www.net130.com/ccnp/jc/Cisco...202%20v3.0.rar
https://www.net130.com/ccnp/jc/Cisco...203%20v3.0.rar
https://www.net130.com/ccnp/jc/Cisco...204%20v3.0.rar
https://ftp.interlegis.gov.br/pub/interlegis/SIT/cisco/Simulation/(CBT)%20Cisco%20Router%20Simulator%20-%20SYBEX.zip
check this web site also
https://ftp.interlegis.gov.br/pub/interlegis/SIT/cisco/
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