有没有遇到过升级IOS后无法敲crypto命令? 为什么升级后就敲不上了?
场景:
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-客户做了IOS升级,之后发现一些命令敲不上了.
switch(config)#ipssh?
%Unrecognized command
switch(config)#crypto?
%Unrecognized command
switch#crypto
Translating"crypto"
%Unknown command or computer name, or unable to find computer address
背景知识:
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什么是K9镜像?
The K9 image consistsof cryptographic features such as Secure Shell (SSH) Protocol and support forIP Security (IPSec)
//K9镜像包含加密特性,例如:SSH和IPSec
//non-K9镜像不支持这些特性
解决办法:
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-升级选择IOS时,保持所选IOS特性一致, 例如升级前后都使用有K9关键字的IOS.
![175627bv255vva4a1kqvrf.png 175627bv255vva4a1kqvrf.png](/t5/image/serverpage/image-id/110409i06B047908B008E72/image-size/large?v=v2&px=999)