Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 771
  • Last Modified:

ASA 5505 Configuration (Version 8.2) intial configuration question

Hello
I've done the initial configuration with PAT, default route, DNS, DHCP, ect. but still can't get my computers to connect to the internet.

Any help on this would be greatly appreciated!!

Here is my running config:


Result of the command: "show running-config"

: Saved
:
ASA Version 8.2(1)
!
hostname ciscoASA
enable password xxxxxxxxxxx encrypted
passwd xxxxxxxxx encrypted
names
!
interface Vlan1
 nameif inside
 security-level 100
 ip address 192.168.40.1 255.255.255.0
!
interface Vlan2
 nameif outside
 security-level 0
 ip address xxx.xxx.xxx.xxx 255.255.255.240
!
interface Ethernet0/0
 switchport access vlan 2
!
interface Ethernet0/1
!
interface Ethernet0/2
!
interface Ethernet0/3
!
interface Ethernet0/4
!
interface Ethernet0/5
!
interface Ethernet0/6
!
interface Ethernet0/7
!
banner motd *****************************  USAGE WARNING!  *********************************
banner motd ********************************************************************************

ftp mode passive
dns domain-lookup inside
dns server-group DefaultDNS
 name-server 8.8.8.8
same-security-traffic permit inter-interface
same-security-traffic permit intra-interface
access-list inside_access_in extended permit ip 192.168.40.0 255.255.255.0 any
pager lines 24
logging enable
logging asdm informational
mtu inside 1500
mtu outside 1500
ip verify reverse-path interface outside
icmp unreachable rate-limit 1 burst-size 1
icmp permit any inside
icmp permit any echo-reply outside
asdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 1 192.168.40.0 255.255.255.0
nat (inside) 1 0.0.0.0 0.0.0.0
access-group inside_access_in in interface inside
route outside 0.0.0.0 0.0.0.0 xxx.xxx.xxx.xxx 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 sip-provisional-media 0:02:00 uauth 0:05:00 absolute
timeout tcp-proxy-reassembly 0:01:00
dynamic-access-policy-record DfltAccessPolicy
http server enable
http 192.168.40.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec security-association lifetime seconds 28800
crypto ipsec security-association lifetime kilobytes 4608000
telnet timeout 5
ssh timeout 5
console timeout 0
dhcpd dns 8.8.8.8 8.8.8.8
dhcpd auto_config outside
!
dhcpd address 192.168.40.100-192.168.40.125 inside
dhcpd dns 8.8.8.8 8.8.8.8 interface inside
dhcpd lease 432000 interface inside
dhcpd enable inside
!

threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
webvpn
!
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:87b59dec3735aa85b43b18106299c663
: end
0
CProp
Asked:
CProp
  • 2
  • 2
1 Solution
 
Jimmy Larsson, CISSP, CEHNetwork and Security consultantCommented:
You have applied an nonexistent acl to your inside interface, which blocks all traffic.

/Kvistofta
0
 
CPropAuthor Commented:
Hi Kvistofta
Any configuration suggestion on resolving my issue in an efficient way?
I'm just wondering if better to modify through command line or ASDM?

Thanks in advance for your help.
0
 
Jimmy Larsson, CISSP, CEHNetwork and Security consultantCommented:
You have to define which traffic to allow from inside to internet. For testing allow .pl traffic:

Access-list inside_access_in permit ip any any

/Kvistofta
0
 
CPropAuthor Commented:
Great Thanks
+ I appreciate the quick responses!
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

  • 2
  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now