Cisco Firewall :: ASA 5505 - All Traffic From Guest VLans To Always Go To Outside Interface

Mar 15, 2013

I have a ASA 5505 with the security plus license. I have 7 vlans, 2 are guest vlans for wireless and wired connections.  I am allowing traffic from the guest vlans to any with the http & https protocols I have ACL's in place before the allow all rule that do not allowed traffic from the guest vlans to the other vlans. Is there any way to have all traffic from the guest vlans to always go to the outside interface for the http & https traffic in stead of trying to go to the other vlans first, I know I have the ACL's in place to prevent the traffic but if I would feel better if I had this in place as well.

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Cisco Firewall :: Can't Get Traffic Flowing Between VLANs On ASA 5505

Aug 20, 2012

I've got an ASA 5505 with the Security Plus license that I'm trying to configure.

So far I have setup NATing on two VLANs, one called 16jda (VLAN 16 - 10.16.2.0/24) and one called 16jdc (VLAN 11 - 10.105.11.0/24).

From each subnet I am able to connect to the internet, but I need these subnets to also be able to talk to each other.

I have each VLAN interface at security level 100 and enabled "same-security-traffic permit inter-interface", and I have setup static NAT mappings between the two subnets, but they still can't communicate.

When I try to ping there is no reply and the only log message is: 6     Aug 21 2012     09:00:54     302020     10.16.2.10     23336     10.105.11.6     0     Built inbound ICMP connection for faddr 10.16.2.10/23336 gaddr 10.105.11.6/0 laddr 10.105.11.6/0

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Cisco Firewall :: 5505 - Route Traffic Between Two VLANs Through ASA

May 30, 2011

I have ASA 5505 Firewall with security plus license, I configured two V LAN 1 and V LAN 5 as my inside V LAN for different sub net, i need to route the traffic between this two V LAN's through ASA. I configured
 
int vlan 1
nameif inside
Security level 100
Ip address 172.16.100.1 255.255.255.0
[Code] .........

The problem is i am not able to ping other sub net, for ex my PC is in V LAN 1 not able to ping 192.168.22.1 ... For troubleshoot i type debug icmp trace while pinging other subnet
 
ICMP echo request from 192.168.22.2 to 172.16.100.101 ID=512 seq=4608 len=32ICMP echo request from 192.168.22.2 to 172.16.100.101 ID=512 seq=4864 len=32ICMP echo request from 192.168.22.2 to 172.16.100.101 ID=512 seq=5120 len=32ICMP echo request from 192.168.22.2 to 172.16.100.101 ID=512 seq=5376 len=32

I turn off the firewall on my local machine.

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Cisco Firewall :: ASA 5505 Dropping UDP / 53 Traffic On Inside Interface?

Jul 21, 2012

We have a Cisco ASA 5505 (v7.2(3)) with a "fairly" normal configuration yet we have a problem where it appears UDP/53 traffic is denied on our inside network.
 
here is output from our sys log:

SyslogID   Source IP      Dest IP    Description
305006      172.18.22.3                   portmap translation creation failed for udp src inside:172.18.22.156/42013 dst inside:172.18.22.3/53
 
To give some clarification:

172.18.22.3      is one of our DNS servers
172.18.22.156  is a device we're experimenting with.
 
We've bypassed the Cisco by using a 4G wireless router with this same device - and it works flawlessly.Here is a [scrubbed] copy of our config. It is what I inherited from the previous admin - I'm not sure of all its finer points (I'm not Cisco certified -- perhaps I'm just certifiable.)
 
: Saved 
:
 ASA Version 7.2(3)
 !
 hostname [redacted]

[code].....

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Cisco Firewall :: ASA 5505 - HTTPS Traffic Through DMZ Interface To Internal Exchange Server?

Apr 23, 2012

I have an ASA 5505 with the base license,When I setup the DMZ interface I had to add the deny access to the inside VLAN.  The DMZ works fine with WiFi on it, but user's iPhones can't get email unless they turn WiFi off.Is there a simple way to allow HTTPS traffic through the DMZ interface to our internal Exchange server which is NAT'd on the 5505's external IP?

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Cisco Firewall :: PIX 501 / Can Traffic Goes From Inside Interface To Outside Interface

Oct 9, 2011

I have Pix 501 firewall and I'm just configuring the device for "Email Server" to allowing POP/SMTP.
 
Inside Interface Address: 132.147.162.14/255.255.0.0
Outside Interface Address: ISP provided IP address
 
My question is can my traffic goes from inside interface to outside interface? (because the inside interface address not from 10.0/172./192.168 private address)Also I'm allowing internet from this email server (132.147.162.14) so what my access list to be configured? and what my subnet mask shoud be there?
 
Pix(config)#access-list outbound permit tcp 132.147.162.14 255.255.0.0 any eq 80
Pix(config)#access-list outbound permit udp 132.147.162.14 255.255.0.0 any eq 53
Pix(config)#access-group outbound in interface inside

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Cisco Infrastructure :: ASA 3750 Firewall To Control Traffic Between VLANs

Jan 20, 2013

We have a data center with servers set up for different projects, some servers from partner companies and several small LANs. The traffic between all those needs to be controlled and firewalled. The servers and LANs are divided into different subnets and VLANs. Physically, their traffic is aggregated on a couple of 4506 and then sent to a FreeBSD server, where the logical gateways are set up and traffic is filtered between them.The BSD server is dying and having it there is incorrect in the first place, so we are planning to replace it with two ASA (5520) in failover.The question that arises is how to correctly implement firewalling between VLANs. Originally we thought to set up the firewalls in transparent mode and logically terminate VLANs on a stack of 3750 switches behind them, but would that filter the traffic between the VLANs? Then we thought to perhaps terminate the VLANs on the ASAs, use routing mode, and do filtering there, as well. Or should we implement multiple contexts? We have about 20 VLANs and all of them differ in rules of what should go there. None of this can be concidered an "inside" - trusted - zone, nor "outside". Internet and external links are connected and filtered in a different place.

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Cisco Firewall :: ASA 5505 - Ping Between Two VLANs?

May 24, 2012

i am trying to get my ASA 5505 with 2 internal VLANs (voice and data) and external internet VLAN to run in router as a stick, and route between VLANS.
 
I cant get it working though:

[code]...

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Cisco Firewall :: Routing Between VLans On ASA 5505?

Dec 5, 2012

I have an ASA 5505 and I have the three regular vlans, outside, inside and dmz. The best would be only have outside and inside and skip dmz, but without explenation there is not possible to have more then two clients in whats now dmz because of a mac filter on third party device.
 
So as security is concerned dmz and inside is equal, one to one and there should be full access between them. I ran the wizard and said that the only way traffic not should be possible to flow is from dmz to outside.
 
In the NAT rules the onle rule is
global (outside) 1 interface
nat (inside) 1 0.0.0.0 0.0.0.0
 
But traffic from one way or the other dmz to inside, og inside to dmz it says in log
 
3Dec 06 201215:38:39305006172.17.6.1053portmap translation creation failed for udp src inside:192.168.6.102/49358 dst dmz:172.17.6.10/53  From documentation I have an image with network drawing from documentation. What do I have to do allow traffic btween inside and dmz, both ways.

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Cisco Firewall :: NAT With Inside / DMZ VLANs On ASA 5505 V8.4(2)?

Sep 16, 2012

I have a 5505 with Base license running ASA software v8.4(2) that has been working happily for a while with an inside and an outside VLAN.
 
The outside has a single statically configured public IP, and I have a number of static NAT rules to expose a few internal servers as well as Dynamic-NAT for all devices on inside to gain access to the Internet... the main bits of the config are below:
 
interface Vlan1
nameif inside
security-level 100
ip address 192.168.1.1 255.255.255.0
!
interface Vlan2

[code]....

I now have a requirement to add a "dmz" VLAN for guests to have access to the Internet using a dedicated wireless AP, but not to any of the inside resources. As the ASA has a base license I have configured "no forward interface" to the inside vlan, which suits the purpose fine
 
interface Vlan12
description Used only for guests access to the Internet - no access to the corporate resources
no forward interface Vlan1
nameif guests
security-level 20
ip address 192.168.2.1 255.255.255.0
 
My problem is that when I try to add NATing from the dmz to the outside I get a:
 
     ERROR: Address a.b.c.d overlaps with outside interface address.
     ERROR: NAT Policy is not downloaded
 
with either:
 
object network guests_subnet
subnet 192.168.2.0 255.255.255.0
nat (guests,outside) dynamic interface

[code]....
 
Having had a look at the ASA Configuration guides, all the examples I can see with several "internal" VLAN's being NAT'ed use one external IP per VLAN - is this a feature/restriction of the ASA software? Are there any workarounds? Or is the overlap in the error message really about the current NATing to the inside VLAN which is done on the "any" 0.0.0.0 subnet - would the following then work:
 
object network obj_any
subnet 192.168.1.0 255.255.255.0
nat (inside,outside) dynamic a.b.c.d
object network guests_subnet
subnet 192.168.2.0 255.255.255.0
nat (guests,outside) dynamic a.b.c.d

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Cisco Firewall :: 5505 Licensing And VLANs

Oct 2, 2012

so I look up ASA5505 licensing and for VLAN support see: 3 (no trunking support)/20 (with trunking support)*
 
I need 3 VLANs...inside, outside, and DMZ..but when it is creating the third (DMZ) it says I am only allowed to have 2 VLANs and can only create the third if its set to not forward traffic. ?

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Cisco Firewall :: Configuring VLANs In ASA 5505 Switch

Apr 19, 2011

I have 2 ASA 5505 firewalls and 1 cisco 3560 switch.
 
One ASA 5505 firewall and cisco 3560 switch located at SITE-A. Another ASA 5505 firewall located at SITE-B. 
 
Below is the my connectivity:
 
Site-A                                       IPSec VPN                                       Site-B
cisco 3560 <----------------------------> ASA 5505<------------------------------------------------------------------------------------> ASA 5505
 
I planned to create 5 vlans in my cisco 3560 switch. these 5 vlans needs to have internet and needs to access Site-B.
 
I will write on dafault route to firewall in my cisco 3560 switch. Is ASA 5505 supports this scenario??? If it is then how to configure ASA 5505 firewall.

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Cisco Firewall :: Configure ASA To Send All Traffic From (3) VLans To Interfaces That Connects To 2960?

Apr 18, 2013

I have a an ASA 5520 connected to a Layer 3 (3750) switch (Inside) and a connection to a 2960 switch (Outside) to get to the internet. . I have created vlan interfaces on the 3750 switch and enabled ip routing on the switch to enable the vlans to communicate with each other.
 
Vlan Interfaces on the switch:
Vlan 100 172.17.1
Vlan 200 172.18.1
Vlan 300 192.168.3.1 
 
I want the devices connected to the 3 vlans to be able to pass through the firewall and get out to the internet.I have connected the ASA to the 3750 by routed interfaces (10.10.10.1) --------- (10.10.10.2) and they are able to ping each other.I have also put a default route on the 3750 sending all traffic from the switch to the ASA inside interface (10.10.10.1)The issue that i am having is that the ASA also connects to a 2960 which has a connection to the Internet, and they are handing off an ethernet connection from the 2960 that sits in VLAN 55 (Vlan 55 is the Internet accessible vlan).How do I configure my ASA to send all traffic from my (3) vlans to the interfaces that connects to the 2960 switch?

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Cisco Firewall :: ASA 5505 Security License And Vlans Supported?

May 18, 2013

I am buying ASA 5505 with security  license. It says it can support 20 vlans does it support 20 vlans by allowing to create subinterfaces? As it has 8 physical ports only?

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Cisco Firewall :: ASA 5505 Vlans Routing & Access-list?

Jan 4, 2012

ASA 5505 vlans routing & access-list?

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Cisco Firewall :: Multiple WAN IPs Routed To Separate Internal VLANs On ASA 5505

May 25, 2011

I have an ASA 5505 with the security plus software and I'm trying to find out how to assign 2 public IPs to the outside interface and have each IP routed to a separate internal VLAN. For example, IP 1 = X.X.X.1 routed to 192.168.1.0 and IP 2 X.X.X.2 routed to 192.168.2.0. I was told this was possible and I've been trying to find configuration examples, but I can't seem to get anywhere and now I'm getting desperate because I'm scheduled to install it this weekend.

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Cisco Firewall :: Failover ASA 5505 - Setup Second Inside Interface On Firewall?

Feb 19, 2012

I have a Cisco ASA 5505 in our office. We are currently using Interface 0 for outside and 1 for inside. We only have 1 Vlan in our environment. We have two three switches behind the firewall. Today the uplink to Interface 1, to the firewall, on the switch went bad. I want to setup a second inside interface on the firewall and configure it as failover incase this happens again. I want to attach it to the other switch. Can I do this? If so, what do I need to do? would it only be a passive/standby interface?

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Cisco Firewall :: ASA 5505 Creating Interface Vlan In Firewall

May 3, 2011

I have been working with ASA 5510,20,40,80 but not with 5505 this vlan and its interfaces are quite confusing.Just want to know how it works and its connectivity to Cisco Switch.Do i have to put the interface of the switch in the same vlan as i am creating the interface vlan in firewall ?Now the switch port connecting to this Eth1 interface should also be in the same vlan ? i.e vlan3 ?? or it will be in trunk ? The default configuration shows the eth0 with no access vlan and interface eth1 with access vlan 2... does it mean the eth0 is in vlan1 ? (Nativ Vlan ) ???

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Cisco Firewall :: Cross Interface Traffic ASA5505

Mar 12, 2012

I have an ASA-5505. [code] I have an Exchange server on the 10.10.10.0 network.  I need to be able to allow Active-Sync and OWA from the Guest WiFi through to the Exchange server on the 10.10.10.0 network.  The Guest Wi-Fi uses external DNS so traffic is going out to the Internet and getting an IP address which is of course assigned to the Outside interface abd trying to come back in on that interface.How do I make this do what I need?  How do I setup the rules to allow this traffic?

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Cisco Firewall :: ASA 5510 Ftp Traffic Passing On 1 Interface But Not Another?

Dec 20, 2011

FTP traffic routed from outside to the inside interface works fine.  I have another interface with multiple sub-interfaces and vlans configured.  FTP traffic routed from the outside to vlan2_servers is not making it through the firewall.  I must be missing something.  I have attached my config.

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Cisco Firewall :: ASA 5510 High Traffic On Outside Interface

Jul 31, 2012

I have little experience with firewalls, what I've learned has been by dealing with issues like this that arise from time to time.I know, I need to upgrade the version. It's in the works now. Anyways, my question/problem is: Today I've received reports of slow internet access/activity and have noticed myself that it seems a bit slow today.  On the dashboard of our asa 5510 the "outside interface" traffic usage is running contstantly high. It's at the top of the graph. How can I tell what is causing the spike in utilization. It usually runs at about 1500-2000 Kbps, and now it's up over 10,000.

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Cisco Firewall :: ASA 5510 - Can't Move Traffic From DMZ To Outside Interface

Jan 16, 2012

I can't move traffic (isakmp udp_port: 500 & ipsec nat traverse udp_port: 4500) from my dmz to the  outside interface

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Cisco Firewall :: ASA 5505 Ftp Traffic From Dmz To Outside

Dec 5, 2012

I am able to ftp from my Head Office to my test machine at the remote location but I can't get the other way around to work. Error message from the Syslog deny tcp src 192.168.50.5/1825 dst 208.124.202.44/21 by access-group "dmz_access_in".I try a couple of ways to fix it but no luck.A partial config of my ASA 5505. [code]

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Cisco Firewall :: Getting Any Traffic Out Of ASA 5505

Jul 24, 2011

We have a BT Infinity broadband circuit which terminates at a vdsl modem, I've plugged an ASA 5505 into the back of this modem and gone through the ADSM quick setup wizard (yes I'm that much of a beginner!) The config that's been generated is pasted below, the symptomns I'm seeing are;
 
The ASA is setup with PPPOE on the internet connection, I assume this is correct as if I do a show IP on the ASA I'm getting an IP address that has been assigned, if I change the password to the wrong one then I get no IP (as expected).
 
If I ping from the ASA to an internet connection I'm getting "no route" error messages, if I try a "ping outside x.x.x.x" then I get no repsonses.
 
The ASA can ping it's external IP, the client machines can ping it's internal, however nothing appears to be able to get out.
 
ASA Version 8.4(1)
!
hostname xxxxxx
enable password xxxxxx encrypted

[Code].....

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Cisco Firewall :: NASA5510 Working Traffic Inside Of Same Interface

Oct 13, 2012

I need to configure a Cisco ASA5510.Connencted the a single interface I have a switch. To this switch (same VLAN) there are connected:
 
1. The Subnet of the main office (192.168.1.253)

2. A router  (IP 192.168.1.254) that routes the traffic to a remote location (Subnet 192.168.8.0/24)
 
I have so allowed any traffic incoming to the inside interface as follows:access-list inside_access_in extended permit ip any any and I have permitted traffic intra interface as follows: same-security-traffic permit intra-interface. [code]Unfortunately I cannot RDP into that server. When I simulate the connection via Packet tracer, it tells me that the implicit deny on the bottom of the connections from "inside" (firewall) does not allow the connection. It sounds to me like that "same-security-traffic permit intra-interface" does work only if there are 2 interfaces and not a single one.Unfortunately I cannot just unplug the cable and connect it into another port as the ip is on the same subnet and I cannot configure the other end router.

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Cisco Firewall :: 6509-E / Traffic Coming From GRE Interface And Going Further Through FWSM?

Oct 4, 2011

I have problem with traffic coming from GRE interface and going further through FWSM on the same 6509-E chassis.It's very interesting and confusing. If packets are fragmented, I can go through, however, if I use normal packets (usual ping for example) traffic goes from outside to inside and stops on it's way back.
 
Here is the detailed info:
WS-C6509-E with WS-SUP720-3B
FWSM HW 4.0,  SW 4.1(4) 
 
GRE is done in hardware (source is loopback interface - only one loopback per GRE tunnel).

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Cisco Firewall :: ASA5505 - Routing Traffic From VPN Clients To Interface?

Sep 17, 2011

I have two attachments that show my basic network layout.  I can get from the VPN Cisco Client to Workstation 2 just fine with my current NAT rules in place.  I can also get from Workstation 2 to Workstation 3 just fine.  But I'm having issues when I try to get from the VPN client to Workstation 3...  What would I need to do enable to get to Workstation 3 from the VPN client?  IT seems very simple to me (just PAT that traffic as I do the traffic from Workstation 2 to Workstation 3) but that does not work.

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Cisco Firewall :: Force ASA 5520 Traffic Out Specific Interface

Jun 1, 2011

I'm trying to route all default traffic from my production environment through my ASA 5520 on the "outside2" interface.The 5520 has a site to site VPN to our DR site on the "outside/inside" interfaces via one ISP. On another ISP, interfaces "outside2/inside2" go to the internet.
When I make my 3750 stack default route for the inside2 interface IP I cannot get to the internet. When it is pointed to the inside interface on my 5505, I can.
 
I get the following errors when I try to open google.com from a production server:Why is the 5520 trying to use the "outside" interface instead of the "outside2" interface to go out?

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Cisco Firewall :: Does ASA 8.4 Automatically NAT Outgoing Traffic To Outside Interface By Default

Apr 25, 2012

For ASA v8.3 and above we don't need to use nat-controll, traffic from high security interface can go to low security interface without matching NAT statements.So does the ASA automatically NAT s the outgoing traffic to the outside interface by default?

For example

ASA inside int---10.1.1.1
outside int---120.11.1.1

when the inside hosts try to go out they will be NATed to 120.11.1.1 by default on version 8.3 and later.is that right?

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Cisco Firewall :: Sub Interface On ASA 5505?

Dec 10, 2012

I want to creat sub int on ASA 5505 but when I am trying below command it show error.

------------------------------------
config t
int f0/0.3400
------------------------------------

My ASA software version is 8.2(5).

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Cisco Firewall :: Sub Interface On ASA 5505

May 13, 2009

Can we make sub interface on Cisco ASA 5505 model and if its possible then do that interface need to be upgraded into Trunk Port.

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Cisco Firewall :: ASA 5505 Throttling Traffic?

Apr 11, 2012

We have 110mbps internet service.  When we have the 5505 behind the cable modem, our speed drops to 55mbps or so.  If we remove the 5505, we see the full 100mbps.  I assume the 5505 can handle the speed; if so, what other things should I be looking at?As an aside, we used to have 50mbps wich worked fine, then the ISP upgraded to 60mbps and the through put dropped to 30mbps  (It always seems to be half)

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Cisco Firewall :: Traffic With 5505 Goes To High To Low

Jun 25, 2012

My understanding is for insight to outside we need global and NAT, and for outside to inside we need static and ACL? Traffic goes to high to low, I'm just start working with 5505 recently.

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