11-23-2008 09:11 AM - edited 02-21-2020 03:07 AM
Dear All
I can't access internet from my inside network!!
I don't know why!?
Router :
Interface Ethernet f0/0: IP 195.xxx.xxx.17/29 (connect to router)
ASA NETWORK
Interface External e0/0 :IP 195.xxx.xxx.18/29 (connect to router)
Interface internal: e0/1: IP 10.10.100.1 mask 255.255.252.0
ASA Configuration
ASA Version 8.0(2)
!
hostname ciscoasa
domain-name domain.com
enable password xxxxxxxxxxxx encrypted
names
dns-guard
!
interface Ethernet0/0
nameif Interface_to_cisco_router
security-level 0
ip address 195.xxx.xxx.18 255.255.255.248
!
interface Ethernet0/1
nameif Int_Internal_domain
security-level 100
ip address 10.10.100.1 255.255.255.0
!
interface Management0/0
nameif management
security-level 100
ip address 192.168.1.1 255.255.255.0
management-only
!
passwd xxxxxxxxxxxxx encrypted
boot system disk0:/asa802-k8.bin
ftp mode passive
clock timezone WEST 0
clock summer-time WEDT recurring last Sun Mar 1:00 last Sun Oct 2:00
dns domain-lookup Interface_to_cisco_router
dns domain-lookup Int_Internal_domain.com
dns server-group DefaultDNS
name-server 195.22.0.136
name-server 195.22.0.33
domain-name domain.com
same-security-traffic permit intra-interface
object-group protocol TCPUDP
protocol-object udp
protocol-object tcp
access-list Interface_to_router_Cisco_access_in extended permit object-group TCPUDP any any eq domain
access-list Interface_to_router_Cisco_access_in extended permit tcp any any eq www
pager lines 24
logging list Registo_eventos_william level emergencies
logging list Registo_eventos_william level emergencies class vpn
logging asdm informational
logging recipient-address william@domain.com level critical
mtu management 1500
mtu Interface_to_router_Cisco 1500
mtu Int_Internal_domain 1500
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-602.bin
no asdm history enable
arp timeout 14400
global (Interface_to_router_Cisco) 101 interface
nat (management) 101 0.0.0.0 0.0.0.0
access-group Interface_to_router_Cisco_access_in in interface Interface_to_router_Cisco
route Interface_to_router_Cisco 0.0.0.0 0.0.0.0 195.xxx.xxx.17 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 10.10.100.0 255.255.255.0 Int_Internal_domain
http 10.10.10.0 255.255.255.0 management
http 195.xxx.xxx.16 255.255.255.248 Interface_to_router_Cisco
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 10.10.100.0 255.255.255.0 Int_Internal_domain
telnet timeout 5
ssh timeout 5
console timeout 0
dhcpd address 10.10.100.20-10.10.100.250 Int_Internal_domain
dhcpd dns 10.10.100.2 195.22.0.136 interface Int_Internal_domain
dhcpd lease 345600 interface Int_Internal_domain
dhcpd domain domain.com interface Int_Internal_domain
dhcpd enable Int_Interna_domain
!
threat-detection basic-threat
threat-detection statistics access-list
!
class-map inspection_default
match default-inspection-traffic
Thanks in advance
MP
Solved! Go to Solution.
11-23-2008 10:19 AM
Hi MP,
Based on the below configuration, only traffic from the management interface can to go the internet.
global (Interface_to_router_Cisco) 101 interface
nat (management) 101 0.0.0.0 0.0.0.0
You need to include your inside interface in the nat statement if you want to have traffic from inside to go the internet.
Example:
nat (Int_Internal_domain) 101 0.0.0.0 0.0.0.0
Regards,
Arul
*Pls rate if it helps*
11-23-2008 10:19 AM
Hi MP,
Based on the below configuration, only traffic from the management interface can to go the internet.
global (Interface_to_router_Cisco) 101 interface
nat (management) 101 0.0.0.0 0.0.0.0
You need to include your inside interface in the nat statement if you want to have traffic from inside to go the internet.
Example:
nat (Int_Internal_domain) 101 0.0.0.0 0.0.0.0
Regards,
Arul
*Pls rate if it helps*
11-24-2008 05:09 AM
Hi Ajagadee
Thanks very much for you post! It did help a lot. I modified the configuration to the following:
global (Interface_to_router_Cisco) 101 interface
nat (Int_Internal) 101 10.10.100.0 255.255.255.0
nat (Int_Internal) 101 0.0.0.0 0.0.0.0
nat (management) 101 0.0.0.0 0.0.0.0
and add access-list
access-list Int_Internal_access_in extended permit tcp any any
access-list Int_Internal_access_in extended permit udp any any
It is know working fine!
Kind regards
MP
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