topic upgrading pix 520 in Network Security https://community.cisco.com/t5/network-security/upgrading-pix-520/m-p/863937#M974063 <P>hello floks i have heard thst cisco does not support 7.1 ios on pix 520. i have a lab with pix520 with 16 megs flash 128 ram what i would like to know is if it can be upgraded to 7.1 ios, would like to practice with the new adsm any suggestions . thanks</P> Mon, 11 Mar 2019 11:19:45 GMT rmmbminola 2019-03-11T11:19:45Z upgrading pix 520 https://community.cisco.com/t5/network-security/upgrading-pix-520/m-p/863937#M974063 <P>hello floks i have heard thst cisco does not support 7.1 ios on pix 520. i have a lab with pix520 with 16 megs flash 128 ram what i would like to know is if it can be upgraded to 7.1 ios, would like to practice with the new adsm any suggestions . thanks</P> Mon, 11 Mar 2019 11:19:45 GMT https://community.cisco.com/t5/network-security/upgrading-pix-520/m-p/863937#M974063 rmmbminola 2019-03-11T11:19:45Z Re: upgrading pix 520 https://community.cisco.com/t5/network-security/upgrading-pix-520/m-p/863938#M974064 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>Yes, you are correct. 7.0 and higher version of pix code are not supported on Pix 520. And I would not try to upgrade the pix 520 to any 7.x version.</P><P></P><P>For what its worth, when I tried to upgrade the pix 520 with 7.0 code, the pix crashed with watchdog timeouts and I had to revert back to 6.2 code. So, if you are planning to upgrade the pix 520, make sure that you have a back up plan.</P><P></P><P>Regards,</P><P>Arul</P></BODY></HTML> Tue, 02 Oct 2007 20:29:56 GMT https://community.cisco.com/t5/network-security/upgrading-pix-520/m-p/863938#M974064 ajagadee 2007-10-02T20:29:56Z