Can some one please help me how can I put SSH and Telnet both in bootflash.
Telnet is supported on all the IOS images. To support SSH on you 1841 router you need the following image: c1841-ipbasek9-mz.124-1c.bin . I have checkd and it meets the minimum DRAM and Flash requirement on you router. So go ahead and load the IOS that I mentioned above and you will be good to go.
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