I just got my outside vlan configured up-and-running See Post Here. I was able to get vlan 2 pinging to the internet specifically. However, now I honestly think I am misunderstanding what parameters I should be using ... Here is my config so far:

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
interface Vlan1
 nameif inside
 security-level 100
 ip address
interface Vlan2
 nameif outside
 security-level 0
 ip address 74.xx.xx.225
ftp mode passive
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
global (outside) 1 interface
nat (inside) 10
nat (inside) 1
route outside 74.xx.xx.230 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
timeout floating-conn 0:00:00
dynamic-access-policy-record DfltAccessPolicy
http server enable
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 timeout 5
console timeout 0
dhcpd auto_config outside
dhcpd address inside
dhcpd enable inside

threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
class-map inspection_default
 match default-inspection-traffic
policy-map type inspect dns preset_dns_map
  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
: end

As you can see, I have a PC connected and assigned So dhcp is working correctly .. It just can't see the outside world!!

  • please add a specific list of protocols you want to work through the fw... or if you want to allow everything outbound, then just tell us that. Commented Sep 25, 2013 at 20:42
  • everything outbound .. on this vlan .. There will be more secure vlans later ..
    – Zak
    Commented Sep 25, 2013 at 20:47
  • Also let me rephrase .. I would like any traffic to be able to happen inside the fw. For instance traffic between port 1 and 2. Also all traffic outbound on port 0 from port 1 etc .. If that makes sense?
    – Zak
    Commented Sep 25, 2013 at 21:19

1 Answer 1


All you should need is...

conf t
no nat (inside) 10
dhcpd dns
wr mem

Since your inside interface is already a higher security level than outside interface and you are nating everthing, you should not need an internal or external acl.

Do a release / renew to pick up the dns setting, and then start surfing...

  • Thanks @Mike ... I messed it up at first, but it worked as expected!!
    – Zak
    Commented Sep 25, 2013 at 22:06
  • @zak, you're most welcome... good luck with the rest of your deployment and let us know if we can assist further Commented Sep 25, 2013 at 22:13

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