SSH Write failed: Broken pipe

на клиенте:

echo "ServerAliveInterval 120" >>  /etc/ssh/ssh_config

или на сервере:

echo "ClientAliveInterval 15" >> /etc/ssh/sshd_config
echo "ClientAliveCountMax 3" >> /etc/ssh/sshd_config

enable ssh in cisco router

1. Set  hostname and ip domain-name
2. crypto key generate rsa general-keys modulus XYZ
3. service password-encryption
4. username "name" privilege 15 secret "Pasword"

5. line vty 0 4
         transport input telnet ssh
         transport output telnet ssh
         login local (tacacs)
         # password cisco [non encrypted]
         # password secret cisco