asked on

Configuring ASA5505 for internet access

Limited knowledge on Cisco. Bought this Cisco ASA5505 to add security to inside network an also switch ISP provider to a faster one.

Information:
Modem/ Router set up in bridge mode - DONE
office IP provided by ISP 70.XX.XX.250, 255.255.255.252
Gateway 70.XX.XX.249
DNS 24.55.102.2, 24.138.252.19

ASA Configuration
IP 10.10.10.1 for DHCP range 10.10.10.10 to 10.10.10.132

ASA Version 8.3, ASDM 6.4

Problem:
Now the problem is if I go an change via ASDM to static IP on the outside interface I loose connectivity to the internet.

Current Configuration
:
ASA Version 8.3(1)
!
hostname ciscoasa
enable password 8Ry2YjIyt7RRXU24 encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
names
!
interface Vlan1
nameif inside
security-level 100
ip address 10.10.10.1 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
ip address dhcp setroute
!
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
!
ftp mode passive
object network obj_any
subnet 0.0.0.0 0.0.0.0
pager lines 24
logging asdm informational
mtu outside 1500
mtu inside 1500
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
!
object network obj_any
nat (inside,outside) dynamic interface
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 10.10.10.0 255.255.255.0 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 auto_config outside
!
dhcpd address 10.10.10.5-10.10.10.132 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 client auto
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
inspect ip-options
!
service-policy global_policy global
prompt hostname context
Cryptochecksum:29d6b2956c3aaffb97010e7061a8cf4b
: end
no asdm history enable

Need assistance on this cause I need to use that Static IP in order to create a VPN connection to other office.

ncomper

When set as DHCP can you confirm what IP address the unit is given? i wonder is its as simple as the ISP has not setup a static IP address for you.

Dan Craciun

After changing the IP you also need to add a default route. It won't work otherwise.

HTH,
Dan

ncomper

Dan, i didnt think i spotted a default route..... but thought i was just being special

AcostaJ

ASKER

Hi,

ncomper - the ISP set at all, I test it with a pc connect it to the modem router (Arris TG862 in bridge) directly in bridge a set my static IP gateway an dns to the computer an work.

Dan Craciun - can you provided me with an example of the route?

AcostaJ

ASKER

I add:
interface Vlan1
nameif inside
security-level 100
ip address 10.10.10.1 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
ip address 70.45.X.X 255.255.255.252
!
ftp mode passive
object-group network obj_any
pager lines 24
logging asdm informational
mtu inside 1500
mtu outside 1500
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
nat (outside) 0 10.10.10.0 255.255.255.0
route outside 0.0.0.0 0.0.0.0 70.45.X.X 1

but still no internet connection, more help?

Dan Craciun

In ASDM you need to configure:
1. Interfaces -> outside
2. Routing -> Static routes -> outside

ASKER CERTIFIED SOLUTION

ncomper

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

AcostaJ

ASKER

Just to let you guys now that it is resolve, a simple restart did the trick, after change some configuration with the route. Thanks