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New Member

ASA 5505 Stop traffic LAN


When i connect to existing LAN the ASA 5505, Stop trafic servers.

Why , what is missconfigured.

ASA Version 7.2(3)


hostname ciscoasa

domain-name default.domain.invalid

enable password xxx



interface Vlan1

nameif inside

security-level 100

ip address


interface Vlan2

nameif outside

security-level 0

ip address


interface Vlan3

no forward interface Vlan1

nameif dmz

security-level 100

ip address


interface Ethernet0/0

switchport access vlan 2


interface Ethernet0/1


interface Ethernet0/2

switchport access vlan 3


interface Ethernet0/3

switchport access vlan 3


interface Ethernet0/4

switchport access vlan 3


interface Ethernet0/5

switchport access vlan 3


interface Ethernet0/6

switchport access vlan 3


interface Ethernet0/7

switchport access vlan 3


passwd xxx

ftp mode passive

dns server-group DefaultDNS

domain-name default.domain.invalid

same-security-traffic permit inter-interface

same-security-traffic permit intra-interface

pager lines 24

logging asdm informational

mtu inside 1500

mtu outside 1500

mtu dmz 1500

icmp unreachable rate-limit 1 burst-size 1

asdm image disk0:/asdm-523.bin

no asdm history enable

arp timeout 14400

global (outside) 1 interface

nat (inside) 1

static (outside,inside) netmask

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

http server enable

http inside

no snmp-server location

no snmp-server contact

snmp-server enable traps snmp authentication linkup linkdown coldstart

telnet timeout 5

ssh timeout 5

console timeout 0

dhcpd auto_config outside



class-map inspection_default

match default-inspection-traffic



policy-map type inspect dns preset_dns_map


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


: end


Re: ASA 5505 Stop traffic LAN

Add a default route...

route outside

New Member

Re: ASA 5505 Stop traffic LAN

Hi Acomiskey,

Hope fine.

I am having a problem in my Pix FW to block a particular network to go to the internet. Here is the scenerio.

My FW has 3 interfaces: Outside(Sce 0), Inside (Sec100) and DMZ(Sce50). Whole inside block (let say 10.x.x.x) is being NATed (Here using DynamicNAT/PAT) to the Outside Interface while going towards Internet. NAT 0 is using between Inside and DMZ Servers to communicate. Here is the configuration.


global (Outside) 1 interface

nat (Inside) 1 access-list nat

access-list Nat_ACL extended permit ip any log

Now what the problem is - I want to block a specific network to go to the the Internet. I tried to change the Nat_ACL ACL here by denying the to any and then allow/permit 10.x.x.x to any. But it didn't work.

Any suggestion or ideas or any other way how can I block this to go to the Internet. Ur help would be highly appreciable.


New Member

Re: ASA 5505 Stop traffic LAN


I don't see any nat & acces list for DMZ traffic, also again check your static command.

Re: ASA 5505 Stop traffic LAN

Hi Adnan,

All you have to do is assigning an ACL (Not NAT Acl) to inside interface as following

access-list inside_access_in deny tcp eq www

access-list inside_access_in permit ip any any

access-group inside_access_in in interface inside