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 WAN :: Cat 3560-E / 2960-G - Configuring Two VLANs On Same Switch Port

Mar 29, 2012

As per my attached diagram, I have three switches (Cat 3560-E and couple of Cat 2960-G)

Each PC is on different vlan
PC -1 on vlan 100
PC-2 on vlan 200

I need to connect PC-1 and PC-2 to the server. Server has no fixed vlan and can be changed.

Restrictions:

1) can’t change PCs vlan assignment.
2) can’t add 2nd NIC in the server.
  
I’ve tried private vlan but it requires separate physical ports for host and/or community vlan and somehow it did not work. I could be wrong Trunking using dot1q enabled on port 2 on all switches and connection works fine (server to PC-1 or server to PC-2) by enabling switchport access vlan 100 or switchport access vlan 200. However I need port 5 on switch-1 to respond to vlan 100 and 200.

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Cisco Firewall :: Configuring VLANs On 5515-X Is It Possible

Mar 29, 2013

I am trying to connect 2 VMWARE servers directly to my 5515-X firewall. [code]ASDM will not let me assign the same VLAN to both Gi0/2 and Gi0/3. I dont want to connect my VMWARE servers to a switch first (that just adds one more component that can fail).

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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 :: 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 Loss On Configuring Twice NAT

Mar 30, 2012

There seems to be a large number of the subject queries in one form or another.  Having acquired an asa 5505 and using 8.43 firmware and the ADSM gui for router configuration it has not been an easy transition from other products.   I have come to understand embedded NAT objects for basic port forwarding but am at a loss on configuring twice nat or manual nat, not really ever dealing with it before, or in this manner.  
 
What I would like to suggest to the experts, is to include far more ADSM web gui examples and discussion for manual nat.   The tools are all there - in the nat rules editing page,  the display of the rules pictorially and the packet flow at the bottom of the page (and finally thru packet tracing).   What is needed is more on the actual entries on the nat editing pages and the logic and explanation of those entries.   In this forum what I would like to see is when there are responses that they include both the CLI recommended entries b AND the associated adsm web gui pics.  With good documents for reading and examples in the forum, I think there should be much less confusion allowing more attention to some very complex scenarios. At the very least I and others like me will get better edumecated.  I am looking to understand CIsco packet routing through explanations of the web gui entries. In fact, I am learning far more by trying to understand the web gui vice simply copying and entering CLI commands.  In terms of documents, for example, there should be a very thorough explanation of the relationship between "Translated Addr:" in the first NAT editing page with "Destination Inteface" in the second Advanced page .I have added the packet tracing jpegs for further context.  There is an UNNAT lookup entry (first trace block, out of view on the pic) a concept which is missing in the documentation I've read that needs to be added but it is illuminating in how the router handles traffic.   What is also interesting is the fourth jpeg which also shows the flow designation of a packet and its handling internally (new packet or one that is associated with an existing packet (previously identified and put in an appropriate table xlate etc)).

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Cisco Firewall :: Best Practice For Configuring ASA 5505

Jun 6, 2011

I am planning on building the configuration on my ASA 5505, and then distribute that same configuration to several places on ASA5505's.

What is the best way to do this? Screen dumps of the ASDM. Copy the running-configuration from a text file into the ASA5505. TFTP the running-config.

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Cisco Firewall :: Configuring ASA 5505 Firewall

Sep 21, 2012

I am configuring a Cisco ASA 5505 firewall.In the office there is 1 x SBS 2008 server and 5 x PCs, all sat behind a Netgear DGN1000 ADSL router.We want to implement a ASA 5505 for added security.I have configured the internal interface of the Cisco ASA 5505 to be 192.168.0.1 - this is connected to local switch. The client PCs use 192.168.0.1 as their default gateway.I have configured the external ASA 5505 interface to be x.x.x.217. [code]Change the current router status from Router/Firewall/Modem to Modem only (Bridge mode). The ASA 5505 has its outside interface connected into one of the LAN ports of the netgear. The lan port has an IP of 192.168.0.254.

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

Jan 4, 2012

ASA 5505 vlans routing & access-list?

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Cisco Firewall :: Configuring ASA 5505 With Base License

May 11, 2011

I have ASA 5505 with base licence. I configured NATing and VPN(site to site). All are working fine.My ASA is base license so i created 2 VLANS, one is inside and outside.Inside i am using 10.91.40.0/24 serie IP addresses.Below are the new requirements that i need to configre:
 
1. First 30 IP addresses only needs internet directly.( Servers and Management)

2. If remaining IPs likes to use web then traffic needs to forward one proxy server( where he gives user authentiation)

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Cisco Firewall :: Configuring UC-Proxy On ASA 5505 Version 8.0?

Jan 24, 2012

I'm trying to configure UC-Proxy using an ASA 5505 with software version 8.0.4.I was following the instructions in DOC-5704 and ASA 8.0 CLI.I don't have USB security tokens in UC solution, instead I'm using IP phones Cisco 7961 with MIC.I configure all the items as the documentation says but when I restart the phone outside the Firewall, the 7961 don't registrate with the Call Manager.Checking the troubleshooting I found that it's possible certificates problems but I don't know if I need to do something in phones.
 
I would like to know if there is any consideration when the UC proxy works just with MIC.The outside phone is a Cisco 7961 configured with static IP address and TFTP address of Call Manager (static NAT in ASA).

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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 :: 5505 Configuring RDP Access To Local Server

Jun 10, 2012

I need configuring RDP access to my local server from a remote location on my Cisco ASA 5505 Firewall.I have attempted to configure rdp access but it does not seem to be working for me. How to modify my current configuration to allow this? I need to allow the following IP addresses to have RDP access to my server: [code] The other server shows up as 99.89.69.334 but is working fine.
 
I already added one server for Static route and RDP but when I try to put in same commands it doesnt allow me to for this new one. My configuration file and what are the commands i need in order to put this through. Also, if there are any bad/conflicting entries. Also I have modified IP information so that its not the ACTUAL ip info for my server/network etc... lol for security reasons of course.Also the bolded lines are the modifications I made but that arent working. [code]

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Jan 15, 2013

A CISCO 3750-X stack with several VLANs  and many ACLs applied to the virtual interfaces. Intervlan routing is on. Connected to this stack are VMware hosts and with about 500 VMs.We started using the ACLs to allow connectivity between VLANs to specific hosts and it has grown to thousands of lines. I personally do not think this is good for the switch and believe the switch was not intended to be used for that security feature.

- Does it make it sense to add an "internal firewall" between the CORE ROUTER AND THE 3750-X SWITCH STACK ?

- Do you recommend any other way?

- Any recommended CISCO resource/white paper to read about best practice

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Cisco Firewall :: HP Procurve 5412zl Switch / Multiple VLANs And Gateways?

Feb 9, 2013

We have a HP Procurve 5412zl switch as our default  gateway for all our VLANs from there the traffic will be going to a  Cisco ASA 5515 and then to a Cisco 3800 Router then to our ISP.
 
We have yet to purchase the ASA but my question is  about my future configuration.  I will have the router of last resort on  the 5412zl setup to point to the ASA inside interface, how does that  work with multiple VLANs?  For instance the ASA inside interface would  be 10.0.0.1 but traffic could come from another VLAN via the switch with  a 192.168.1.x address.  Would the ASA just pass it on to the router?   Or would it conside this spoofing and drop the packet?
 
Lastely, if we have WCCP set for the ASA's inside  interface, how would it handle the redirect for multiple VLANs ip addresses? Would I  use GRE for the redirect to my web filter?

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Cisco WAN :: Configuring Two VLANs On 871 Router

Apr 23, 2013

I use the cisco 871 router as a firewall to my home-office. I have configured two vlans for each seperate port. That is, FE0 configured as VLAN 10  ----> connected to Layer 2 Switch,  FE1 configured as VLAN 20 ----> connected to another Cisco Layer 2 Switch,FE2 not in use, FE3 not in use and FE4 is connected to WAN.I got 100Mbps speed from the ISP, but I can see that I only get 50mbps even connected to VLAN 10 or VLAN 20.Does configuring two VLANs on Cisco 871 router divides the bandwidth (to Internet) into half?

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Cisco Firewall :: Setting Up ASA 5505 To Be Used As Firewall Between BT Internet And 3560 LAN Switch?

Aug 23, 2011

setting up an ASA 5505 to be used as a firewall between a BT internet router(BTNet service) and a Cisco 3560 Lan switch. BT have presented me with a cisco 3800 series router with the following details:

Network Address   Network Mask  BTnet NTE Router LAN Address
      
There are 2 Gigethernet ports on the back of the router port Ge0/0 is connected to the BT NTE and the status light is flashing green. Int ge0/1 is connected into port int e0/1 of the ASA but i am unable to get any connection.

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Jun 1, 2012

WE have to deploy ASA5585 in between User vlans & server vlans. we have to find all the ports that needs to be opened on firewall. any tools to do same.

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Cisco :: Configuring 1200 Access Point / Vlans

May 29, 2012

I has 4 VLANs and I want a MAC address has access to a VLAN, but not to another.
 
I used ACLs, but this will block the access to the access point, How to get the mac address will have access to a VLAN, eg no other Vlan? I has 4 VLANs and I want a MAC address has access to a VLAN, but not to another.
 
I used ACLs, but this will block the access to the access point, How to get the mac address will have access to a VLAN, eg no other Vlan?

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Cisco Switching/Routing :: Configuring ASA5510 To Allow VLANs To Internet

Jan 29, 2012

Here is what I have. Windows Domain Controller running DHCP with configured scopes.I have one ASA5510 And 4 HP Procurve switches with VLANS preconfigure from vender.
 
Here are my DHCP scopes/VLANS:
 
VLAN1 -Default 10.2.x.x/17 
VLAN201 -DHCP 10.2.201.x/24
VLAN202 - WLAN EMP 10.2.202.x/24
VLAN203 - WLAN Guest 10.2.203.x/24 
VLAN 252 - MGMT 10.2.254.x/24
 
Here is how I configured the DHCP Scopes:

Changes needed to make to the DHCP Server (AUSPDC) in order to get things working with the new switches.
 
1) Configure 3 new DHCP scopes on your DHCP server.
 
a) scope for 10.2.201.x/24 to serve LAN employees and give them a gateway address of 10.2.201.254.
 
b) a scope for 10.2.202.x/24 to serve WLAN employees and give them a gateway address of 10.2.202.254.

  c) a scope for 10.2.203.x/24 to serve WLAN Guests and give them a gateway address of 10.2.203.254. 
 
I just upgraded and decided to go with the VLAN configuration. None of my VLANS can get out to the internet or each other due to I think My ignorance in configuring the firewall.The PC's are getting proper IP address but they cannot get out or to the other VLANs. I tried to duplicate what is working for VLAN1 but it is not working.

Here is my config.
 
 Result of the command: "show running-config"
 
 : Saved
:
ASA Version 8.2(3)
!
hostname CiscoASA
domain-name hand.local
enable password 1FVULuGal5s1/ADt encrypted
passwd 2KFQnbNIdI.2KYOU encrypted

[code].....

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Cisco :: Configuring Trunking And VLANs On A 2100 Series Wireless Controller?

Oct 4, 2011

We have 4 1142N LAPs that I want to divide between an internal wireless and a guest wireless network using the controller.  Currently all of the APs are on an established internal network, but I want to migrate one over to a test guest network before buying more LAPs to augment the networks further. Currently the port connecting to the WCS from the 3560 switch is configured as an access port using VLAN 10.  Whenever I make it a trunk port carrying VLAN 10 as well as the other ports we will be using for the guest and ap-manager networks, I lose connection with the controller.  To me this implies that the port on the controller is configured as an access port as well.  In the documentation I found for the controller it states that by default the ports are al configured to be trunks, but it appears as though something was changed by the previous tech.  All of the APs are connected to other switches, not to the controller itself.
 
1) How can I get the port on the controller back to being a trunk port

2) Can I use the internal DHCP server for the guest network if the subnet is different than the management subnet, or will I have to use another external server and relay/proxy it through the controller to give guest clients IP addresses?

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Apr 11, 2012

I would like to configure a 3750 switch port to be able to use two vlans. I know you can do this with a voice and data vlan, but what about two data vlans ? Say I have two devices, one on a 10 subnet and the other on a 172 subnet, but i only have one wall jack for both devices to plug into. So I use a mini switch to connect both devices and connect the switch to the wall jack; and of course this all leads back to one switch port. When I go to enter the switchport access vlan 172 cmd, how would I also make it so the device on the 10 subnet could route out ?

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Cisco Firewall :: 5505 Inside Interface To Another Switch?

Apr 23, 2012

I am connecting the inside interface to an upstream switch and therefore will need to assign a static IP address to the inside address as I did below:
 
#sho int ip brief 
Vlan1                      123.123.123.123  YES manual up                    up
 
I will also use this to manage the ASA. I am having a problem with the network configuration of the inside interface as I can't ping the gateway and/or the in IP of the inside interface.Do I need to add any routes?

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Cisco :: Evaluation Of ISE Using 2940 Switch Or ASA 5505 Firewall?

Mar 23, 2011

I have downloaded the 90 day ISE evaluation to a vmware platform I have it successfully authenticating local user(s) onto a Cisco 2940 device (12.1) IOS I am trying to follow a TrustSEC design guide [URL] but my LAB 2940 does not support many of the commands shown in this document What I want to try to do is be able to familiarise and demonstrate in the lab the use of ISE to control access to the network using 802.1X and or VPN access from remote vpn clients?

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Cisco Firewall :: ASA 5505 - Drops Inside Interface On Switch

Apr 6, 2011

I have a pair of 5505's in transparent mode and connected them to C2960S. The inside interface (which is VLAN5 on the switchport) keeps dropping, going in to error state. There is no log reference in the switch and the interface shows as UP. The standby ASA has no problem, both interfaces on the switch is up. As soon as I failover the units over, the active node inside interfaces drops.

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Cisco Firewall :: ASA 5505 Switch From Mode / Access Port To Trunk On The Fly Via CSM

Jan 20, 2013

Can I configure the Port at the ASA 5050 from Mode: access Port to trunk during the FW is running in a production area without console access ?As I know at the 5505 ist should work?

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Cisco :: Connecting Two VLANs Via An ASA 5505?

Mar 20, 2013

routing between VLANs on my ASA 5505. I am very technical system wise, but my knowledge of routing and switching is very shallow.

What I am trying to accomplish: Small lab environment with basic services split onto two seperate VLANs (such that DHCP would need a relay on the second VLAN to deliver leases). No external network connection as of right now (so no Internet).

My current configuration:
Cisco Catalyst 2960
As you can see below, the two VLANs I am trying to set up are vlan101 (10.100.100.1) and vlan102 (10.100.101.1)
Code:

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