Cisco ASAv stuck trying to change from VNC to telnet?
From GNS3 menu EDIT --> PREFERENCES --> QEMU VMs
Choose the ASAv VM, and click EDIT.
Choose ADVANCED SETTINGS tab UNCHECK "Use as a linked base VM"
Hit OK
Hit OK (second time)
Place an instance of ASAv into a blank topology
Start said ASAv (using VNC as console)
Make the following changes:::
------
copy disk0:/coredumpinfo/coredump.cfg disk0:/use_ttyS0
wr
copy startup-config disk0:/startup-config
conf t
boot config disk0:/startup-config
hostname ASAv-9xx
wr
copy running-config disk0:/startup-config
reload
------
After the reload, Stop the VM
From GNS3 menu EDIT --> PREFERENCES --> QEMU VMs
Choose the ASAv VM, and click EDIT.
Choose ADVANCED SETTINGS tab CHECK "Use as a linked base VM" Choose GENERAL SETTINGS tab Change Console Type to TELNET
Base Configuration for ASDM
interface GigabitEthernet0/0
nameif outside
security-level 0
ip address 8.8.8.254 255.255.255.0
no shut
!
interface GigabitEthernet0/1
nameif inside
security-level 100
ip address 10.1.1.254 255.255.255.0
no shut
!
route outside 0.0.0.0 0.0.0.0 8.8.8.8
!
object network obj_any
subnet 0.0.0.0 0.0.0.0
nat (inside,outside) dynamic interface
!
policy-map global_policy
class inspection_default
inspect icmp
!
!
!
ciscoasa# sh run
: Saved
:
ASA Version 8.4(2)
!
hostname ciscoasa
! Configure an “enable password” which is the administrator password of the device
enable password 2KFQnbNIdI.2KYOU encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
names
!
interface GigabitEthernet0
shutdown
no nameif
no security-level
no ip address
!
interface GigabitEthernet1
shutdown
no nameif
no security-level
no ip address
!
interface GigabitEthernet2
shutdown
no nameif
no security-level
no ip address
!
interface GigabitEthernet3
shutdown
no nameif
no security-level
no ip address
!
interface GigabitEthernet4
shutdown
no nameif
no security-level
no ip address
!
! Configure IP address to Interface GigEth5 and put a high security level (90 is good).
! name also the interface as “management”
interface GigabitEthernet5
nameif management
security-level 90
ip address 10.10.10.1 255.255.255.0
!
ftp mode passive
pager lines 24
mtu management 1500
icmp unreachable rate-limit 1 burst-size 1
! Tell the appliance where the asdm image is located.
asdm image disk0:/asdm-647.bin
no asdm history enable
arp timeout 14400
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute
timeout tcp-proxy-reassembly 0:01:00
timeout floating-conn 0:00:00
dynamic-access-policy-record DfltAccessPolicy
user-identity default-domain LOCAL
! SSH access will use the LOCAL username/password for authentication
aaa authentication ssh console LOCAL
! enable the HTTP service on the device so that you can connect to it for ASDM access
http server enable
! Tell the device which IP addresses are allowed to connect for HTTP (ASDM) access and from which interface
http 10.10.10.0 255.255.255.0 management
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart warmstart
telnet timeout 5
! Tell the device which IP addresses are allowed to connect for SSH access and from which interface.
ssh 10.10.10.0 255.255.255.0 management
ssh timeout 5
console timeout 0
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
webvpn
! Configure a LOCAL username/password to be used for authentication.
username cisco password 3USUcOPFUiMCO4Jk encrypted
!
!
prompt hostname context
no call-home reporting anonymous
call-home
profile CiscoTAC-1
no active
destination address http https://tools.cisco.com/its/service/oddce/services/DDCEService
destination address email callhome@cisco.com
destination transport-method http
subscribe-to-alert-group diagnostic
subscribe-to-alert-group environment
subscribe-to-alert-group inventory periodic monthly
subscribe-to-alert-group configuration periodic monthly
subscribe-to-alert-group telemetry periodic daily
crashinfo save disable
Cryptochecksum:0760c72b39dd8d7a479d517a65758f33
: end
ciscoasa#
NOTE:
To enable SSH access, we need to generate also SSH keys as following:
ciscoasa(config)# crypto key generate rsa modulus 1024
Keypair generation process begin. Please wait…
ciscoasa(config)#