Cisco Firewall :: ASA 5505 VLAN Or Trunk Configuration?
Sep 2, 2012
ASA 5505, I got a security plus license which allows multiple VLANs.I want to be able to configure the ASA to allow only RDP session (One way) to another Switch where all the VLANs are. I've attached a pic of what I want but I'm struggling.
I looked at documentation saying you should have inside and outside interface but I'm not sure on this scenario.I've configured inside interface on ASA e0/1 and interface VLANs but not sure what to do between ASA and Switch?
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Mar 14, 2013
I have IOS 8.0(4) and the base 50 User License...will this config work? I have two networks; my home network, and my lab. I want to split my Internet connection between them, but keep the networks separate for the most part. Will my license allow this config since I can't do DMZ?
interface Ethernet0/0
switchport access vlan 3
!
interface Ethernet0/1
switchport access vlan 1
!
interface Ethernet0/2
switchport access vlan 2
[code]....
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Apr 30, 2012
I have an issue with my firewall,each time i configured a trunk port in the firewall and connect a sw 2960S with a trunk port also, all the interfaces in the Firewall go down ( virutal intertaces, inside, outside , dmz) , also another switch 3750 that is connected to another port in the firewall( access port only) it start to a new negotiation of spanning tree.What could be causing this problem? the firewall didnt sedn bdpdu i think the IOS of the firewall its a 8.2
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Sep 28, 2011
I am trying to configure a trunk between the above two devices. I like to have vlan11 on ASA. Then I like to connect a host to my switch, and have it communicate with other devices in VLAN 11 or other vlans that reside on the ASA. Below is the config that I currently have.
ASA:
ciscoasa# show run interface Ethernet0/1
!
interface Ethernet0/1
[Code].....
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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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Aug 12, 2012
We have 6509 VSS with FWSM Module and we have created two context on it, one is INTERNALL CONTEXT othe is EXTERNALL Context? We have spanned various VLANS in switches and FWSM context level. All VLAN Gateways are configured in context level.
Activity description : We had planned migration of these devices into a new Datacenter, it was a planned activity. During migration of devices from one Dc to a new DC we broke the VSS and kept the primary running and removed the secondary switch and migrated this secondary to new DC and powered this device ON in the new DC and checked all the config was very much fine but this device was OFF network as secondary was brought to new DC just to limit the downtime during the primary switch movement.
During the activity ( Primary switch movement )We powered off the Primary switch and mean time before shifting into new Data center We had brought up secondary switch which was already existing in the DC was put live in the network and it was working fine without any issues.
Later we had moved Primary into new data center and tried to put into VSS with the secondary , during this period the secondary device into went into RECOVERY MODE and primary device was not responding and devices went off network and immediatly we removed the VSL link and brought up primary into production network without secondary online in the network ( Without VSS just stand alone switch ) network started working, but bringing up the primary we found that some of the VLANS in the FWSM was deleted and some VLAN had misconfiguration ( example : say original VLAN ip 10.200.112.1 has become 10.300.13.1 ) also some of the access list as well as SVI was deleted making configuration mismatch.
Wanted to know while syncronization b/n primary and secondary switch in VSS if we pull out VSL link would create this type of issues.
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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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Jan 30, 2012
On our ASA 5505 We have a DMZ configured to use 2 ports, which are used by the mail and Web servers. So far everything works perfectly and this router has been very stable. Now I need to add more ports in order to accomodate prototype Web servers in the DMZ, but no more ports available on the Cisco. Looking through the ASDM though I noticed the DMZ seems to be configured as "VLAN 5", sure enough with VLAN ID 5. So I tried creating a VLAN with ID 5 in my ProCurve switch, isolated from other VLANs. My theory being that plugging on of the the router's DMZ interfaced onto this VLAN would allow me to add my test servers. Well, this seems to work, but for only a very short time. I can get the landing page from my test server to display, and then everything slows down to a crawl and communication seems to be blocked. Out of curiosity, I tried to put my prod server and email server on the VLAN, together and separately, but the same thing happens. At first, I can ping the machines, then after a few request, everything stops responding.
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Aug 15, 2011
I have a Cisco ASA 5505 that I have configured. The outside interface is vlan 2 and the inside interface is vlan 1. Port 0 of the ASA is configured to be in vlan 2 and is connected to the ISP provided subnet. Port 1 is connected to my private LAN subnet. I have an additional router connected to Port 2 for guest connectivity. Port 2 is configured to be a member of VLAN 2 so that it can access the ISP provided subnet. From the device connected to port 2 I can ping the vlan 2 interface address of the ASA and from the ASA I can ping the Default gateway of the ISP provided subnet. For some reason the router on port 2 cannot ping the default gateway of the ISP provided subnet. If the vlan were working the same as a vlan in a switch, I would expect to be able to do this. why it is not working or what I can do to get it working?
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Oct 10, 2012
i need to configure a new ASA 5515-X with a 3 trunk port for vlans that become from switch, but i need turn on IPS in in-line mode, somebody has an example and limitations for this configuration type?
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Sep 11, 2007
I want to configure an ASA 5505 in transparent mode (7.x). Somehow, I got it to work.. but i need some kind of step by step description. I just want to connect it with outside on a route .. inside in my LAN. Its working now with one ASA. But in the Web Interface the Interfaces inside and outside are down.. but its working.
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Jul 17, 2012
I am working on ASA 5505 with Base License that uses 3 VLAN's.
-My VLAN 1 is for used for my home network.
-VLAN 2 is connected to the public Internet and my IP gets assigned by ISP dynamically.
-VLAN 3 is DMZ where I will have few VM's that would need access to and from the Internet.
I am looking to work with following:
1) 172.16.0.2 that sits on DMZ will need to access public Internet over port 80
2) Permit access from the Internet over port 3389 to 172.16.0.2
3) Permit any host on private VLAN (192.168.0.0 network) to access 172.16.0.2 over the port 3389
4) Permit second VM on the DMZ VLAN let say 172.16.0.3 to access public Internet on all ports. Access in to this host is not permitted.
5) For some reason DHCP hosts are NOT getting DNS (8.8.8.8) entry when IP hets assigned or renew. I have a statements below but it is not working.
Also, if ACL rules for VoIP are written correctly. The goal is to permit these ports (SIP related) to access VoIP router. [code]
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May 26, 2013
Site A:
ASA5520
VLAN data subnet 172.16.10.x/24
VLAN Voice subnet 10.0.0.x/24
Site B:
ASA5505 Base license
VLAN data subnet 192.168.10.x/24
VLAN Voice (restr) subnet 10.0.1.0/24
The callmanager is located on site A and needs to sent out DHCP-offers to site B through the VPN so the IP-phones can register to the callmanager. I got the VPN up and running for the data-subnet but i can't get traffic through the voice-subnet/VLAN.
Can the ASA's do the job or do I need to route traffic before the ASA's on both sides and sent it through the tunnel, configured both subnets as interesting traffic? Ofcourse the last situation I need to upgrade the license for the 5505 to gain more VLAN's.
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Jul 8, 2012
Ive been readin all over the internet (including this site) trying to figure out if the asa can handle intervlan routing. Im not sure what I am missing on my config to get this to work. Ive read that it can work and Ive read that it cant work. How to get this to work on my asa 5505.
Here is my setup
Cable Modem ---> ASA (eth0/0)
(eth0/2) -->unmanaged switch for LAN connectivity
(eth0/3) --> Access point for wireless LAN connectivty
My config is attached
What I would like to do is be able to communicate between vlan3(LAN) and vlan4(Wireless LAN)
Whats strange is I can RDP between the two vlans but I cant ping or anything else.
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Feb 12, 2013
This is for an ASA 5505 with the base license...I have a situation where I will not have one interface in my outside VLAN, but instead I want to have interfaces 1-7 in my outside VLAN and interface0/0 in my inside VLAN.
Is this supported with the Base license, and if so how would I do this? Do I still just need to assign one IP address to the outside VLAN?
Or will I need to upgrade to the Security Plus license and put each interface in a separate outside VLAN, so in essence I would have 7 outside VLANs each with the same security level (0)?
My situation is that I have several partner networks that i want to "aggregate" thru my one ASA 5505. So each outside interface represents a separate partner (outside) network, each of which I want to get to from my inside network. Hence the many outside to one inside.
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Feb 16, 2011
i would like to setup a L2 VLAN trunk connection over a VPN. I hear this can be done with a GRE tunnel. I currently have Cisco MWR2941's that i would like to configure the TRUNKs on then push them over a 5520 VPN ( IPSEC Tunnel ) to a 5510. on the other side of the 5510 i will have another MWR2941 to recieve the trunk.
how to configure this trunk or some configuration ideas?
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May 28, 2013
I have a problem whit the configuration of a Firewall ASA 5585 whit the BVI Interface and transparent Firewall, I have 2 VLAN that i want to interconnect.
The problem is whit the configuration of VLAN. The traffic does not cross the FW.
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May 17, 2013
How can i enable Netflow for each Vlan Or interface indvidually in Cisco ASA? currently i have setup Netflow and only 2 interfaces are shwoing traffic for Netflow which are not even as my physical or Vlan interfaces . (see screen shot )
EscapeASA# sh interface ip brief
Interface IP-Address OK? Method Status Protocol
Internal-Data0/0 unassigned YES unset up up
[Code].....
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Oct 26, 2012
I have ASA 5505 with base license. I created 3rd vlan on it.it was created. but i am unable to assign IP to it. i assign ip address it takes it. But when i do sh int ip brief it does not show any ip.
Code...
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Aug 7, 2012
We need to have one connection with less internet bandwidth assigned to it than all other other connections. Basically it is a separate conection from all others, incoming just from one switch port and separate VLAN.I know this can be done on the switch by limiting the bandwidth allocated to a port,
however, is it possible to have the speed limited down, just before it goes to the internet, ie, on the ASA, rather than doing it on the switch?The firewall is an ASA 5505.
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May 4, 2011
I'm new to Cisco equipment much more familiar w/ Sonicwall w/ that said......I have a 5505 w/ Security Plus licensing
I have set up multiple VLANs as follows
VLAN 1 inside - still setup as 192.168.1.1 (will not be using this for our lan)
VLAN2 - outside
VLAN100 - LAN 10.1.1.1/24
[Code]....
If I do add all the VLANs above I understand I will probably have to make a trunk port since I only have 5 usable interfaces
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Aug 7, 2011
ASA 5505 and DMZ and Base License,"For example, you have one VLAN assigned to the outside for Internet access, one VLAN assigned to an inside business network, and a third VLAN assigned to your home network. The home network does not need to access the business network, so you can use the no forward interface command on the home VLAN; the business network can access the home network, but the home network cannot access the business network." Page 6-17.
This is exactly what I need. Mail server in DMZ, full access from internet to DMZ, and from inside network to DMZ, no access from DZM to inside network. If I good understand, this is possible with base license.
I successfully configure, internet Access for DZM and inside network, Mail server can be accessed from internet, as well as RDP on inside network. But I have problem to configure communication from inside network to DMZ. [code]
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Jun 29, 2012
I'm trying to obtain the vlans on a trunk and also whether the port is a trunk. Ive seen VTP mib, but these dont appear present on my switch (2950).
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Oct 15, 2012
I am new to using the ASA 5505 appliance. I have successfully configured it so far, but the one piece that eludes me and I can't find an example of configuring SIP with internal (DMZ security level 50)) VoIP phones to an external call manager (external, security level 0) without using NAT. I have an internal V LAN to an internal B2 router (and management) on eth0/7, an external V LAN (/30 to an external B1 border router) and five different DMZ V LAN on ports eth0/1-eth0/5.
On the external router, the internal interface going to ASA5505 are separate sub-interfaces for each V LAN in the DMZ and one /30 V LAN to connect between the router and ASA. I am using vrf forwarding on the DMZ sub interfaces with IPSEC/GRE tunnels to keep the routing tables separate. I cannot have the different DMZ V LAN's communicate with each other (that's why I am using vrf).
Everything works, all my tunnels are up, I can ping to the external sites from the DMZ V LAN's and pass data, but I am stymied by setting up VoIP. When I used the wizard (big mistake) it setup up all sorts of certificates and NAT (since I really didn't know what I was doing at this point).
Any hints on configuring VoIP from phones in the DMZ V LAN's to an external call manager?
I would include the current config, but I have to hand transcribe it since we don't allow usb connectivity. I might be able to provide it a little later. i am using ASDM 6.4 and ASA IOS 8..4
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Nov 11, 2012
I am setting up an ASA 5505 for a customer. I am not sure how to config the firewall when it is connected to a dsl modem. I tried to do a ordinary config just like the ones thats connected to a ordinary router.
The topology is:
[code]...
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Jan 9, 2012
I am attempting to configure an ASA 5505 which is connected to 3 networks for access to an inside email server. Don't pay attention to the names on this config as they are not intuitive.
The 3 vlans are:
vlan 1 which has an IP of 192.168.x.1 - Connected to inside (which is really the dmz)
nameif inside
e0/1 is assigned to this
[Code].....
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Jun 8, 2011
I've got an ASA 5505 running 6.3 I've connected the management interface to our management vlan (which contains switch IPs, ilo's etc)Is there a way to allow access to this vlan from another?
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Apr 15, 2013
I have been though the setup a couple of time with no luck pinging one pc to another from vlan 10 to vlan 20. I posted the running configs and some other information from my router and switch. I am relatively new to all of this so if you need me to post more information from the hardware let me know and Ill put it up. There are no firewalls in place and I know the cables are good because I switched them around to make sure. Also when I change the ip on my second machine for vlan 10 I can ping from one pc to the other but when I try the same for vlan 20 I get nothing.
**From my 2950 switch**
Current configuration : 2825 bytes
!
version 12.1
no service pad
service timestamps debug uptime
service timestamps log uptime
[code]...
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Jun 13, 2011
I'm having problems configuring an asa 8.2(1) with a backup isp. I followed the asdm instructions in this document: [URL]
I have my backup interface configured as DHCP and the static routes set. Pinging the gateway and other external IP address from the backup interfaces works normally. I have also tried configuring the backup interface as a static address but got the same results.
When removing the primary wan link, all traffic stops. When I ping a external DNS, I get these errors in the log: portmap translation creation failed for udp src inside: 192.168.13.23 dst backup:208.67.222.222_type 8, code0)
I though this type of error is related to a NAT problem, not sure where to look though.
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Jun 10, 2013
I'm working on QoS policing configuration on an ASA 5505.The ASA is situated behind a cable modem which provides an SLA of 3.2Mbps out.I've configured a QOS policy to place VoIP and other essential traffic (RDP/Citrix/PCoIP) into a priority queue, whilst policing default class to 3.2Mbps to police out to the cable modem.I can see on the outside interface graphs that this is rating the output traffic down to 3.2Mbps as expected, but noticing at certain points of high output traffic drops down to 1.6Mbps. I can't see anything obvious in syslog or any other areas to look, so looking for any pointers as to why the speed is suddenly dropping down. Likewise if I rate the output to 2Mbps, it will suddenly drop down to 1Mbps at high output rates.the ASA is running on 8.0(5) and I enclose a copy of the sample QoS config below and attached a sanitized run config, as well as screenshot taken of the outside interface Bit Rates plus service-policy.
access-list VoIP-Traffic-OUT extended permit tcp 172.16.6.0 255.255.255.0 host 68.98.217.252 eq h323
access-list VoIP-Traffic-OUT extended permit udp 172.16.6.0 255.255.255.0 host 68.98.217.252 object-group rtp
access-list VoIP-Traffic-OUT extended permit tcp 172.16.6.0 255.255.255.0 host 68.98.217.252 eq 2000
access-list VMs-Traffic-Out extended permit tcp 172.16.6.0 255.255.255.0 192.168.168.0 255.255.255.0 eq 3389
access-list VMs-Traffic-Out extended permit tcp 172.16.6.0 255.255.255.0 192.168.168.0 255.255.255.0 eq citrix-ica
access-list VMs-Traffic-Out extended permit tcp 172.16.6.0 255.255.255.0 192.168.168.0 255.255.255.0 eq 4172
[code]....
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Sep 26, 2012
I have the configuration file of the ASA 5505 I have another exactly model that asa is new but this my first time working with an ASA.
I going to configure it an ip address in the 0/0 interface and then use TFTP to upload the config to the start-up config and the save it and reload the ASA.
is that enough? or the ASA has extra steps??
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Mar 22, 2011
I need add following to our firewall configuration ( we are changing watchguard firewall to cisco and it was necessary to be configured this way )
1) I need to create 1-1 NAT for our voip system and video conferencing unit and to do it as bellow
VOIP-SIP : from 85.90.225.100 to 217.207.96.121 on port tcp/udp 5060
VC-SIP : from any_external to 217.207.96.120 on port tcp/udp 5060
VC-Video : from any_external to 217.207.96.120 on port tcp/udp 60000 to 64999
VOIP-RTP : from 85.90.225.100 to 217.207.96.121 on port tcp/udp 10000 - 20000
2) I need to eneble to pass PPTP traffic from outside to inside and vice versa
current config:
Result of the command: "show running-config"
: Saved:ASA Version 8.2(2) !hostname ciscoasa
namesname 10.10.1.19 barracudaname 192.168.1.2 ctxdmzname 10.10.1.39 ftp1name 10.10.1.38 ftp2name 10.10.1.37 ftp3name 10.10.1.192 mailsvrname 217.207.96.114 outside_114name 217.207.96.115 outside_115name 217.207.96.116 outside_116name 217.207.96.117 outside_117name 217.207.96.118 outside_118name 217.207.96.119 outside_119name 217.207.96.120 outside_120name 10.10.1.8 transfer_servername 10.10.1.10 backupsvrname 10.10.1.4 citrixsvr1name 85.90.225.100 voip_sipname 10.10.1.9 minimac1name 82.111.186.146 sdt_rdpname 217.207.96.121 outside_121!interface Vlan1 nameif inside security-level 100 ip address 10.10.1.1 255.255.255.0 !interface Vlan3 nameif dmz security-level 50 ip address 192.168.1.1
[code]....
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Mar 19, 2012
I want to know the ppoe configuration in asa5505 firewall. IN my office i have a asa5505 and i get conncetion from local isp which is nothing but ppoe connection so how to do this.
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