cat ยป /etc/ssh/ssh_config
Host *
GSSAPIAuthentication yes
# KexAlgorithms=diffie-hellman-group14-sha1
KexAlgorithms=curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-
nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
cat > topology.yml
provider: libvirt defaults: device: csr nodes: [ r1, r2 ] links: [ r1, r2, r1-r2 ]
hostname csr no ip domain lookup ip domain name lab.local ! no service config ! crypto key generate rsa modulus 2048 ip ssh version 2 ! aaa new-model ! aaa authentication login default local aaa authorization exec default local ! username vagrant privilege 15 secret vagrant ! ip ssh pubkey-chain username vagrant key-hash ssh-rsa DD3BB82E850406E9ABFFA80AC0046ED6 ! vrf definition MGMT description Management interface ! address-family ipv4 exit-address-family ! interface GigabitEthernet1 vrf forwarding MGMT description vagrant-management ip address dhcp no shutdown ! line vty 0 4 transport input ssh ! event manager applet ENABLE-MGMT event syslog pattern "SYS-5-RESTART" action 0 cli command "enable" action 1 cli command "conf t" action 2 cli command "crypto key generate rsa modulus 2048" action 3 cli command "interface GigabitEthernet0/0" action 4 cli command "no shutdown" action 5 cli command "exit" ! end wr mem !