troubleshooting Question

Cisco ASA 5505 ISP Connection?

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Railroad asked on
CiscoHardware Firewalls
4 Comments2 Solutions468 ViewsLast Modified:
So our new ISP gave me our IP allocation:

WAN IP: x.x.x.10
Def. Gateway: x.x.x.9

Additional Allocation x.x.x.128/28

I've configured the ASA, as seen in the code below, and the device can ping devices out on the Internet.  I've changed the def. gateway on one of our machines to use as the def. gateway, but I can not access anything on the Internet.  I would have thought the ASA would have NATed everyone using the x.x.x.10 IP address.

I'm guessing I'm missing something simple, ideas?

In addition,

How do I configure the ASA to allow me to forward the additional IP allocation to machines on my network.  I understand how to do it when the IPs are part of the original subnet, but not sure how to add a second subnet which the ASA "controls".

Thanks in Advance
: Saved
ASA Version 8.2(1) 
hostname FIREWALL
enable password * encrypted
passwd * encrypted
interface Vlan1
 no nameif
 no security-level
 no ip address
interface Vlan2
 nameif outside
 security-level 0
 ip address x.x.x.10 
interface Vlan20
 nameif inside
 security-level 100
 ip address 
interface Ethernet0/0
 switchport access vlan 2
interface Ethernet0/1
interface Ethernet0/2
 switchport access vlan 20
interface Ethernet0/3
 switchport access vlan 20
interface Ethernet0/4
 switchport access vlan 20
interface Ethernet0/5
 switchport access vlan 20
interface Ethernet0/6
 switchport access vlan 20
interface Ethernet0/7
 switchport access vlan 20
ftp mode passive
clock timezone EST -5
clock summer-time EDT recurring
dns domain-lookup outside
dns server-group DefaultDNS
 name-server x.x.x.x
 name-server x.x.x.x
same-security-traffic permit intra-interface
access-list outside_access_in extended permit icmp any any echo-reply 
access-list outside_access_in extended permit gre any any 
access-list outside_access_in extended permit tcp any any eq pptp 
pager lines 24
logging enable
logging asdm informational
logging host inside
mtu outside 1500
mtu inside 1500
no failover
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
global (outside) 1 interface
access-group outside_access_in in interface outside
route outside x.x.x.9 1
route inside 1
route inside 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
aaa authentication ssh console LOCAL 
http server enable
http inside
http 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 inside
ssh inside
ssh inside
ssh timeout 15
console timeout 0

threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
username * password * encrypted privilege 15
class-map inspection_default
 match default-inspection-traffic
policy-map global_policy
 class inspection_default
  inspect pptp 
service-policy global_policy global
prompt hostname context 
: end

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Ernie Beek
Senior infrastructure engineer

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