Hi All,
Hope you can help me with my little problem. I am new to Cisco and I started to configure my Cisco ASA but I am unable to ping External interface address from Internal hosts.
What I wanna do is to nat internal address with the external interface address but unfortunately the internal interface cannot communicate with the external interface.
Here's the config I created:
---------------
ciscoasa(config)# show running-config
: Saved
:
ASA Version 8.0(2)
!
hostname ciscoasa
enable password Qe0yKBKYpRMBmOsL encrypted
names
!
interface Ethernet0/0
nameif external
security-level 0
ip address 116.xyz.xyz.228 255.255.255.192
!
interface Ethernet0/1
nameif internal
security-level 100
ip address 172.31.24.253 255.255.248.0
!
interface Ethernet0/2
shutdown
no nameif
no security-level
no ip address
!
interface Ethernet0/3
shutdown
no nameif
no security-level
no ip address
!
interface Management0/0
nameif management
security-level 100
ip address 192.168.1.1 255.255.255.0
management-only
!
passwd 2KFQnbNIdI.2KYOU encrypted
ftp mode passive
access-list ping extended permit icmp any any echo-reply
access-list ping extended permit icmp any any time-exceeded
access-list ping extended permit icmp any any unreachable
pager lines 24
logging asdm informational
mtu management 1500
mtu external 1500
mtu internal 1500
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
global (external) 1 interface
nat (internal) 1 0.0.0.0 0.0.0.0
access-group ping in interface external
access-group ping in interface internal
access-group ping out interface internal
route external 0.0.0.0 0.0.0.0 116.xyz.xyz.193 1
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 uauth 0:05:00 absolute
dynamic-access-policy-record DfltAccessPolicy
http server enable
http 192.168.1.0 255.255.255.0 management
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
no crypto isakmp nat-traversal
telnet timeout 5
ssh timeout 5
console timeout 0
dhcpd address 192.168.1.2-192.168.1.254 management
dhcpd enable management
!
threat-detection basic-threat
threat-detection statistics access-list
!
class-map inspection_default
match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
parameters
message-length maximum 512
policy-map global_policy
class inspection_default
inspect dns preset_dns_map
inspect ftp
inspect h323 h225
inspect h323 ras
inspect rsh
inspect rtsp
inspect esmtp
inspect sqlnet
inspect skinny
inspect sunrpc
inspect xdmcp
inspect sip
inspect netbios
inspect tftp
!
service-policy global_policy global
prompt hostname context
Cryptochecksum:706119cb0c9cf6aab593bae0e6bc3534
: end
----------------
Here the block diagram of my simple network:
Internal <==> Cisco ASA (Firewall) <==> Internet
Hope you can give me some advise.
Thanks in advance. :)
Regards,
Marlon
