据show ? show sessions命令应该显示Information about Telnet connections 。 尽pipe我已经连线，但会议并没有显示出来。 这两个设备运行Cisco IOS。 我如何查看当前的Telnet会话？
在运行Telnet服务器的路由器上：
Router2#debug telnet Incoming Telnet debugging is on Router2# Router2# Oct 25 13:34:59.063: Telnet226: 1 1 251 1 Oct 25 13:34:59.063: TCP226: Telnet sent WILL ECHO (1) Oct 25 13:34:59.063: Telnet226: 2 2 251 3 Oct 25 13:34:59.063: TCP226: Telnet sent WILL SUPPRESS-GA (3) Oct 25 13:34:59.063: Telnet226: 80000 80000 253 24 Oct 25 13:34:59.063: TCP226: Telnet sent DO TTY-TYPE (24) Oct 25 13:34:59.063: Telnet226: 10000000 10000000 253 31 Oct 25 13:34:59.063: TCP226: Telnet sent DO WINDOW-SIZE (31) Oct 25 13:34:59.071: TCP226: Telnet received DO SUPPRESS-GA (3) Oct 25 13:34:59.075: TCP226: Telnet received WILL TTY-LOCATION (23) (refused) Oct 25 13:34:59.079: TCP226: Telnet sent DONT TTY-LOCATION (23) Oct 25 13:34:59.083: TCP226: Telnet received WILL TTY-SPEED (32) (refused) Oct 25 13:34:59.087: TCP226: Telnet sent DONT TTY-SPEED (32) Oct 25 13:34:59.091: TCP226: Telnet received WILL WINDOW-SIZE (31) Oct 25 13:34:59.091: TCP226: Telnet received WILL LOCAL-FLOW (33) Oct 25 13:34:59.095: TCP226: Telnet sent DO LOCAL-FLOW (33) Oct 25 13:34:59.099: Telnet226: Sent SB 33 0 Oct 25 13:34:59.099: TCP226: Telnet received DO ECHO (1) Oct 25 13:34:59.103: TCP226: Telnet received WONT TTY-TYPE (24) Oct 25 13:34:59.103: TCP226: Telnet sent DONT TTY-TYPE (24) Oct 25 13:34:59.103: Telnet226: recv SB NAWS 80 24 Oct 25 13:34:59.107: TCP226: Telnet received WONT TTY-LOCATION (23) Oct 25 13:34:59.115: TCP226: Telnet received WONT TTY-SPEED (32) Router2# Router2# Router2#show sessions % No connections open Router2#
在连接到Telnet服务器的路由器上：
Router2>show sessions % No connections open Router2> Router2> Router2>enable Password: Router2# Router2#show sessions % No connections open Router2#
您正在寻找：
show users （或者像大多数人会inputsh users ）
show sessions将显示从您的交换机/路由器到其他设备的传出连接。
show users将显示到交换机/路由器的vty接口（ssh / telnet …）的传入连接。
所以我认为你需要在这里show users 。
许多IOS版本也支持who和where命令。 谁显示与显示用户相同的输出。 与显示会话显示相同的输出
其他有用的方法来查看谁连接将包括who ， show line和show ssh 。 有关连接的详细信息，您可以使用show tcp 。