Cisco配置：主机名、标语、线路和密码。使用 cisco 作为用户 EXEC 密码，class 作为特权 EXEC 密码。cisco作为vty密码 ，加密所有密码，配置ip（46）地址

主机名 标语 使用 cisco 作为用户 EXEC 密码， class 作为特权 EXEC 密码。 cisco作为vty密码 ， 加密所有密码。

IPV4：Branch-A

enable configure terminal hostname Branch-A banner motd #Branch-A# enable secret class line console 0 password cisco login service password-encryption line vty 0 15 password cisco int g0/2 ip address 172.20.31.254 255.255.255.252 no shutdown int g0/0 ip address 172.20.16.1 255.255.254.0 no shutdown int g0/1 ip address 172.20.18.1 255.255.255.0 no shutdown

IPV6：Branch-B

enable configure terminal hostname Branch-B banner motd #Branch-B# enable secret class line console 0 password cisco login service password-encryption line vty 0 15 password cisco int g0/2 ipv6 add 2001:DB8:FFFF:FFFF::2/64 ipv6 address FE80::B link-local no shut int g0/0 ipv6 address 2001:DB8:FADE:00FF::1/64 ipv6 address FE80::B link-local no shut int g0/1 ipv6 address 2001:DB8:FADE:0100::1/64 ipv6 address FE80::B link-local no shut