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Using SSH pubkeys with Foundry

On the client

ssh-keygen -t id_dsa
ssh-keygen -e -f .ssh/id_dsa.pub > id_dsa.pub.ssh2

Add the following to .ssh/config

Host <host>
    Ciphers aes256-cbc
    KexAlgorithms +diffie-hellman-group1-sha1
    PubkeyAcceptedKeyTypes +ssh-dss
    HostKeyAlgorithms +ssh-dss
    IdentityFile ~/.ssh/id_dsa

On the Foundry / Brocade switch or router

crypto key generate
ip ssh pub-key-file tftp <host> id_dsa.pub.ssh2

Check ssh config / pub keys

sh ip client-pub-key
sh ip ssh config