Cisco IOS SSH Enabling

Cisco Switch 에 SSH를 enable 하는 방법

cisco switch catalyst 3560에 SSH로 연결할 이슈가 생겨 SSH를 Enable 하는 방법을 정리해보았다.

사전준비

Switch> enable

Switch# conf terminal

Switch(config)# hostname my_domain

Switch(config)# ip domain-name my_domain.com

Switch(config)# crypto key generate rsa

Switch(config)# show running-config

SSH 설정

Switch# conf terminal

Switch(config)# ip ssh version 2

Switch(config)# ip ssh timeout 120 authentication-retries 3

Switch(config)# show running-config

Switch# conf terminal

Switch(config)# line vty 1 15 # 15개의 session

Switch(config-line)# login local

Switch(config-line)# transport input ssh

Switch(config)# show running-config

사용자 생성

Switch(config)# username admin password 0 naim4321

- https://supportforums.cisco.com/t5/lan-switching-and-routing/set-username-password-on-cisco-3750-switch/td-p/2084980

enable된 SSH 확인

Switch#show ip ssh

SSH Enabled - version 2.0

Authentication timeout: 120 secs; Authentication retries: 3

- https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960x/software/15-0_2_EX/security/configuration_guide/b_sec_152ex_2960-x_cg/b_sec_152ex_2960-x_cg_chapter_01001.html

- https://www.cisco.com/c/en/us/support/docs/security-vpn/secure-shell-ssh/4145-ssh.html