I have a config with reverse SSH configured for access to a bank of serial ports used for console connections.
The problem is if one of the lines/tty ports is in use and someone else tries to connect to the port in use they get logged in directly to router/user exec mode.
Is there a way to prevent this?
AS_1#show running-config
Building configuration...
Current configuration : 3493 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname AS_1
!
boot-start-marker
boot-end-marker
!
logging buffered 4096 debugging
enable secret 5 redacted
!
no aaa new-model
!
resource policy
!
memory-size iomem 15
no network-clock-participate slot 1
no network-clock-participate wic 0
ip subnet-zero
no ip routing
no ip cef
!
!
no ip dhcp use vrf connected
!
!
ip domain name cisco.local
ip ssh port 2001 rotary 1 32
ip ssh logging events
ip ssh version 2
!
!
!
username cisco password 0 redacted
username admin privilege 15 secret 5 redacted
!
!
!
interface FastEthernet0/0
ip address X.X.X.X 255.255.254.0
no ip route-cache
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
no ip route-cache
shutdown
duplex auto
speed auto
!
ip default-gateway X.X.X.X
ip classless
!
ip http server
no ip http secure-server
!
!
!
control-plane
!
banner motd ^CC
************************************************
** **
** Authorized Access Only! **
** **
************************************************
^C
!
line con 0
exec-timeout 15 0
logging synchronous
login local
line 33
session-timeout 20
login local
rotary 1
no exec
transport input ssh
transport output none
line 34
login local
rotary 2
no exec
transport input ssh
line 35
login local
rotary 3
no exec
transport input ssh
line 36
login local
rotary 4
no exec
transport input ssh
line 37
login local
rotary 5
no exec
transport input ssh
line 38
login local
rotary 6
no exec
transport input ssh
line 39
login local
rotary 7
no exec
transport input ssh
line 40
login local
rotary 8
no exec
transport input ssh
line 41
login local
rotary 9
no exec
transport input ssh
line 42
login local
rotary 10
no exec
transport input ssh
line 43
login local
rotary 11
no exec
transport input ssh
line 44
login local
rotary 12
no exec
transport input ssh
line 45
login local
rotary 13
no exec
transport input ssh
line 46
login local
rotary 14
no exec
transport input ssh
line 47
login local
rotary 15
no exec
transport input ssh
line 48
login local
rotary 16
no exec
transport input ssh
line 49
login local
rotary 17
no exec
transport input ssh
line 50
login local
rotary 18
no exec
transport input ssh
line 51
login local
rotary 19
no exec
transport input ssh
line 52
login local
rotary 20
no exec
transport input ssh
line 53
login local
rotary 21
no exec
transport input ssh
line 54
login local
rotary 22
no exec
transport input ssh
line 55
login local
rotary 23
no exec
transport input ssh
line 56
login local
rotary 24
no exec
transport input ssh
line 57
login local
rotary 25
no exec
transport input ssh
line 58
login local
rotary 26
no exec
transport input ssh
line 59
login local
rotary 27
no exec
transport input ssh
line 60
login local
rotary 28
no exec
transport input ssh
line 61
login local
rotary 29
no exec
transport input ssh
line 62
login local
rotary 30
no exec
transport input ssh
line 63
login local
rotary 31
no exec
transport input ssh
line 64
login local
rotary 32
no exec
transport input ssh
line aux 0
line vty 0 4
exec-timeout 15 0
login local
transport input ssh
line vty 5 15
exec-timeout 15 0
login local
transport input ssh
!
!
end
