Cisco Firewall :: ASA 5505 / Block Internal LAN And Internet Traffic Except LogMeIn Site?
Sep 12, 2011
I have configure Cisco 5505 as layer 2 firewall mode. I have vendor machine connected to Cisco ASA 5505 on port 2 as VLAN2 inside then VLAN1 outside connected to my internal network on layer 2 cisco 2960 switch. This machine needs access only to LOGMEIN then block all internal/internet traffic.
vendor machine on vlan 2 inside >> Cisco ASA 5505 vlan1 outside >> layer2 switch >> internal LAN >> Cisco 5520 main FW >>> INTERNET
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Aug 13, 2012
Got an ASA5505 connected to another endpoint running IPsec and being NAT'd at each end to a 10.0.0.0/24 network. I can pass other types of traffic through the ASA 5505 but not RTP traffic. The moment it is NAT'd and hits the firewall rules it gets denied by the default deny at the bottom of the list.
Currently the rules are as follows
Incoming External
allow ip any any
allow tcp any any
allow udp any any
default deny
[code].....
It wont allow us to setup a voip call...however when the same call manager sets up a voip call NOT using this ipsec tunnel it works just fine.
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Aug 30, 2011
I'm usually not working with this product, but this is what I'm trying to do.I have 2 internal networks setup on our Cisco ASA 5505 firewall. (not done by me, I'm a new to this product)I'm trying to access a server on one network from a PC located on the other internal network. (preferable through the web gui)When I try "Packet Tracer" from interface "Trust4" it fails on the NAT phase.(Source ip: 10.0.4.99, Destination ip: 10.0.6.99)
When I check the NAT rule, it says:
Type Source Interface AddressDynamic any outside outside.
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Mar 22, 2012
We have an ASA 5505 running version 8.4. We are having problems allowing external traffic to access computers behind the firewall. Our current config is:
ASA Version 8.4(3)!hostname ciscoasadomain-name default.domain.invalidnames!interface Ethernet0/0switchport 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 Vlan1nameif insidesecurity-level 100ip address 10.2.1.1 255.255.255.0!interface Vlan2nameif outsidesecurity-level 0ip address 152.18.75.132 255.255.255.240!boot system disk0:/asa843-k8.binftp mode passivedns server-group DefaultDNSdomain-name default.domain.invalidobject network a-152.18.75.133host 152.18.75.133object network a-10.2.1.2host 10.2.1.2object-group network ext-serversnetwork-object host 142.21.53.249network-object host 142.21.53.251network-object host 142.21.53.195object-group network ecomm_serversnetwork-object
[code]....
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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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Apr 29, 2012
I have an ASA 5520 with the below config
Gi0/0: outside (Internet)
Gi0/1: inside (Internal users)
Gi0/2: DMZ (web servers, ftp, Mail etc..)
I have a SMTP relay deployed on the DMZ for mailing. I have also a mail servers installed in the internal lan,
I want to allow trafic from dmz to reach internal lan, and i want normally also allow stmp relay from dmz to reach Internet.
How can i block trafic from DMZ to reach Internal Lan (instead of smtp) if the to allow trafic from dmz to internet i must put ANY in the policy?
For allowing trafic from DMZ to reach Internet, the policy must be DMZ -----> ANY ----->Services., this policy means DMZ can implicity reach Internal Lan?
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Mar 3, 2011
I have 3 ASA 5505 Firewall, I am creating Site 2 Site Full mesh tunnel with each firewall, the problem i am facing is two of the firewalls internal schema are same, Like Site 1 has an Internal Schema: 192.168.0.0, Site 2 has an Internal Schema 192.168.0.0, Site has an Internal Schema 10.10.10.0
For that i have to create a policy static nat and access list??
I configurred a access-list like below,
access-list vpn_ih_site3_site1 permit ip 10.10.10.0 255.255.255.0 192.168.0.0 255.255.255.0access-list vpn_ih_site3_site2 permit ip 10.10.10.0 255.255.255.0 192.168.0.0 255.255.255.0
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Jul 7, 2011
Is it possible to block internet traffic on the PC using ASA5501 firewall which is used in transperent mode.The DHCP pc is working fine we just need to pass through ASA to block the internet on the pc however intranet should be available.
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Aug 14, 2012
Got an ASA5505 connected to another endpoint running IPsec and being NAT'd at each end to a 10.0.0.0/24 network. I can pass other types of traffic through the ASA 5505 but not RTP traffic. The moment it is NAT'd and hits the firewall rules it gets denied by the default deny at the bottom of the list.
Currently the rules are as follows
Incoming External
allow ip any any
allow tcp any any
allow udp any any
default deny
[code]....
It wont allow us to setup a voip call...however when the same call manager sets up a voip call NOT using this ipsec tunnel it works just fine.
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Mar 13, 2011
I have 2 ASA 5505 Firewall, I Configured Site 2 Site VPN no both the fitrewall, as i have a dual ISP, i am able to create the tunnel with primary but once my primary is down i am not able to create the tunnel with back up ISP. During the troobleshoothing by typing Show isakmp sa and Show ipsec sa, i can see my tunnel is up, but not able to decap the packets.
As it will look like
#pkts encaps: 15, #pkts encrypt: 15, #pkts digest: 15 #pkts decaps: 0, #pkts decrypt: 0, #pkts verify: 0 #pkts compressed: 0, #pkts decompressed: 0 #pkts not compressed: 15, #pkts comp failed: 0, #pkts decomp failed: 0 #pre-frag successes: 0, #pre-frag failures: 0, #fragments created: 0 #PMTUs sent: 0, #PMTUs rcvd: 0, #decapsulated frgs needing reassembly: 0 #send errors: 0, #recv errors: 0
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Apr 3, 2013
I do have a 5505 up and running, and passing data... url...Now I am trying to get a IPSEC VPN tunnel working.I actually have it up (IKE phase 1 & 2 both passed), but it is not sending/receiving data through the tunnel.
The networks concerned: name 10.0.0.0 Eventual (HQ Site behind Firewall)name 1.1.1.0 CFS (Public Network Gateway for Palo Alto Firewall - Firewall IP: 1.1.1.1)name 2.2.2.0 T1 (Remote site - Outside interface of 5505: 2.2.2.2)name 10.209.0.0 Local (Remote Network - internal interface of 5505: 10.20 9. 0.3) On a ping to the HQ network from behind the ASA, I get port map translation creation failed for icmp src inside:10.209.0.9 dst inside:10.0.0.33 (type 8, code 0)
I am suspecting that there is a NAT error and/or a lack of a static route for the rest of the 10.0.0.0 traffic, and that I may have to exempt/route the traffic for the HQ network (10.0.0.0), but I haven't been able to get the correct entries to make it work. [code]
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Feb 4, 2011
I've setup a site-to-site vpn between 2 5505s, with 1 subnet per site directly behind the ASAs.The VPN establishes connection successfully, but i can only access resources from site2 to site 1. E.g. I can ping or rdp from a server in site2 at IP 192.168.3.250 to a site1 server at IP 192.168.10.250. I cannot make the opposite connection, i.e. 192.168.10.250 to 192.168.3.250.
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Dec 23, 2011
Currently I have an ASA setup as a Firewall with 1 outside interface and 2 inside interfaces. Initially, the Guest interface was setup to receive DHCP from the ASA and everything was working. I'm adding router and a server for the guest interface and what I'm trying to accomplish now is the following: ASA 5505 > Airport Extreme with a public static IP (69.xx.xx.6), handling DHCP and NAT > Mac Server as DNS Server.Right now, when I connect to my Airport Extreme with any computer, I don't have internet. I don't understand what's wrong. My DNS Server has a reserved IP address: 192.168.226.2 and it's pointing to itself and forwarding the ISP DNS servers, the Airport Extreme is handling the DNS Server IP and the ISP DNS Server IP but I can't connect to the internet from the server. [code]
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Aug 23, 2012
I have configured an ASA 5505 to connect a single internal network to internet, it is not working. I have attached the config
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Dec 27, 2011
We have an ASA 5505 and I want to block www.facebook.com for all users on the inside network. I followed the instructions laid out in Cisco support document ID 100513 using regular expressions with MPF but am running into some problems.
[URL]
Once the configuration has been changed based on these instruction www.facebook.com is blocked. However I can't access any other websites except my Google News home page comes up just fine for some reason.
ASA Version 7.2(3)
!
hostname ciscoasa
domain-name default.domain.invalid
enable password 4nJloDG8uYd8w4D3 encrypted
names
!
interface Vlan1
[code]....
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May 17, 2013
I have a ASA 5505, which has two IPSec RA tunnels build, for each one the user is able to authenticate and get an IP address is the designated IP pool, but they are not able to ping the Firewall, or RDP to any internal servers. Here is a copy of the running config:
: Saved
:
ASA Version 7.2(2)
!
hostname ciscoasa(code)
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May 24, 2011
I'm trying to allow SSH traffic from the Internet to my DMZ. I gave my remote guy my ip and he can see the ASA 5505 but not get into the DMZ. The outside is 70.165.19.137. The DMZ server is 192.168.60.2. I have the inside talking to the DMZ fine. [code]
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Oct 2, 2011
We have Cisco ASA 5505, 90.x.y.2/29 IP is assigned to outside interface. We have one internal HTTP server so that I use static (inside,outside) tcp interface [URL] to forward all incoming HTTP traffic to internal HTTP server 1. Now we need to add new physical HTTP server 2 so that I would like to forward
HTTP traffic to e.g. 90.x.y.3/29 to 172.16.0.11.
How can I do that? See scenario image (scenario.png) if needed.
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May 30, 2013
I would like to know both Cisco 2901 or 2921 router and Cisco 5505 ASA can build site to site VPN.
1) what is the different to build site to site VPN between router and firewall ?
2) which is the best choice if using in site to site VPN connection ?
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Jul 28, 2011
I have a request to establish a site to site VPN with a customer. While collecting the information I give them our local network subnet which is a private subnet (192.168.5.0). They asked me if I could give them a public address instead. They can not work with the 192.168.5 subnet. Is this possible?
My side of the VPN is an ASA 5505 running 8.2(2). The other side i believe is a Checkpoint.
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Jan 16, 2013
We have a client that has a Cisco 1801W Firewall that is setup as a site to site VPN terminating to a Cisco ASA 5505. The tunnel is up and established, I can ping from both sides of the tunnel.
The problem is the clients behind the Cisco ASA (192.168.2.x) cannot reach certain ports behind the Router (192.168.1.x). The main thing we're trying to do is browse via UNC path (ex: \192.168.1.120 from a 192.168.2.x machine).
I got 3389 working after I changed the - ip nat inside source static tcp 192.168.1.120 3389 y.y.x.x 3389 route-map DM_RMAP_1 extendable Modified the command to include the public IP instead of interface FastEthernet0
I believe it has something to do with the way NAT and route-maps are setup currently but I'm not familar enough with them to make the changes. I worked with Cisco to ensure the VPN tunnel was fine and it's something security related on the Router.
Here is the configuration (removed a few lines not necessary. y.y.x.x = WAN IP of Router x.x.y.y = WAN IP of ASA).
Building configuration...
Current configuration : 23648 bytes
!
version 12.4
no service pad
[Code].....
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Dec 19, 2012
I've set up a standard site-to-site VPN between 2 ASA 5505s and the VPN is working fine for traffic between these ASAs and computers which are in the same LANs.but when I'm trying to connect to computers which are in another VLAN I have a problem.
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Nov 20, 2012
I have weird problem with a Site to site VPN tunnel from a Cisco ASA 5505 to an Clavister Firewall.When I restart the Cisco ASA 5505 the tunnel is up and down,up, down, down, and I get all strange messages when I see if the tunnel is up or down with the syntax: [code]
After a while like 5-10 min the vpn site to site tunnel is up and here is the strange thing happening I have all accesslists and tunnel accesslists right I can only access one remote network (Main site Clavister Firewall) trought the vpn tunnel behind the Cisco ASA 5505, and I have 5 more remote networks that I want to access but only one remote network is working trought the vpn tunnel behind the Cisco ASA. I see that when I do this syntax in ASA: show crypto ipsec sa.They had a Clavister Firewall before on that site before and now they have a Cisco ASA 5505 and all the rules on the main site thats have the big Clavister Firewall is intact so the problems are in the Cisco ASA 5505. [code]
All these remote networks are at the Main Site Clavister Firewall.
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Aug 15, 2012
I wanted to know the maximum VPN client sessions (using the Cisco VPN client) and Site-to-Site VPN tunnels that I can connect to my ASA 5505 simultaneously.
In other words, if I have x VPN clients and y Site-to-Site tunnels, at any time, does x + y have to be <= 10 (Total VPN Peers)? If yes, can I upgrade to the security plus license to increase the Total VPN Peers to 25?
Licensed features for this platform:
Maximum Physical Interfaces : 8
VLANs : 3, DMZ Restricted
Inside Hosts : Unlimited
Failover : Disabled
VPN-DES : Enabled
[Code]...
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Nov 13, 2012
I have a 5505 asa code version 8.3(2). Trying to set up a site to site tunnel with someone and he is asking if I can use ike v2. How do I go about setting up the tunnel to use ikev2? Is ikev2 an option with site to site tunnels?
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Apr 18, 2013
I am not very experienced with Cisco networking.
Here is the situation.
Site A - headquarters 192.168.1.x
Site B - remote office 192.168.20.x
Site C - remote office 192.168.30.x
Site A - ASA 5510
Site B - ASA 5505
Site C - ASA 5505
Site-to-site VPN is established and works between A and B, A and C. Users would like to establish a tunnel between B and C to work on a common project and the data is on Site B.
I tried configuring the S2S VPN with pre-shared keys on both firewalls at sites B and C but in the end it is not established (I cannot ping either side). I used the Wizard interface multiple times and one time the CLI. I generally followed the settings chosen between the headquarter and the individual remote sites and tried to replicate them. Obviously I have made a mistake somewhere.
Could there be any limitation on the ASA 5505 in terms of licensing and the number of S2S tunnels?
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Apr 13, 2011
We have got site to site VPN configured between local site with PIX515 6.3(5) and remote site with ASA 5505 7.2(4) . Because of very unreliable internet connection in remote site , we have added new ISP link which we want to use as redundant link .i understand ASA 5505 can be configured with two ISP link with SLA monitor method for redundancy as per this document ,[URL]
my question is how do i set up this pix 515 to have redundant VPN tunnel with remote site (when primiary ISP link fails in remote site and secondary ISP links takes over ) . I was thinking of using PIX 515 with 2 peers in same crypto map used for that sepcific site to site vpn tunnel,not sure that is the right way or not though.But how would i configure ASA 5505 to use backup interface(where secondar isp router conects ) to particitae in Site to site Tunnel .
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Dec 12, 2011
We have a Cisco ASA 5510 at our main office that makes connection with a 5505 at our other office using site to site VPN. (works)
Now for the question,
we want to access our other office from the main office but we wont want them to have access to our servers etc. so basically we want to control them but they shouldn't have the rights to control us.
Is this possible with a site to site VPN? and how to do it.
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Dec 4, 2012
We are setting up a new phone system using the UC540 with a VPN connection between 2 buildings using 2 Cisco ASA 5505's at either end.The problem I am having is getting the phones at the remote site to connect to the UC540 at the main site.
Phones/Computers (10.0.1.0/24) -- ASA -------------VPN Tunnel------------- ASA -- UC540 -----------Data Vlan1 (10.0.0.0/24)
|------Voice Vlan100 (10.1.1.0/24)
What i am told by UC500 support is that the phones at the remote site will connect if they have connectivity to the TFTP subnet on the UC540, which is 10.1.10.0/30 I added the static route on the ASA and I can ping the 10.1.10.1 TFTP server on the UC540 from the ASA, but not for any other device on the 10.0.0.0/24 network, such as the DC. I added the static route there and was able to ping, so something in the ASA seems to be preventing it.
I also can't seem to get the ASA at the remote site to ping 10.1.10.1. I've tried adding the static route there in hopes it would forward it through the VPN tunnel.
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Feb 1, 2012
I have an issue with my site to site VPN. I have 4 sites connected to my main HQ site via Cisco ASAs 5505 firewalls. The problem is that once and then the sites disconnected from my main site. This disconnection is not happening at the same time for the the 4 sites. For example, it might be different site each time disconnected.
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Dec 2, 2012
I have a site to site VPN configured on a asa5505. The tunnel is up and the interesting traffic is successfully being encrypted. The issue is that when inbound traffic originating from a subnet outside of the encrypted range destin to the subnet within the encrypted range, the return traffic is sent into the tunnel and obviously fails.When traffic from 1.1.1.0/24 to 10.2.2.0/24 traverse the firewall the return traffic goes into the tunnel but it doesn't have the correct match parameters?Am I missing something? I'm expecting that only traffic matching the crypto map will use the tunnel and all other traffic will utilize the default route.
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Dec 13, 2010
I'm trying to configure a Site-to-Site VPN in a Cisco ASA 5505 firewall which is behind an ISP router (Cisco 800 Series) configured in routing mode (not bridging) and with a static nat of all the ports to the firewall (avoiding bridging mode of the router). [code]
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Aug 27, 2009
I'm trying to establish a vpn tunnel with a sonic firewall. We've checked both ends for differences and they are the same. PFS has been disabled on both ends. I'm seeing this in the logs.
%ASA-3-713119: Group = x.x.x.x, IP = x.x.x.x, PHASE 1 COMPLETED
%ASA-5-713068: Group = x.x.x.x, IP = x.x.x.x, Received non-routine Notify message: No proposal chosen (14)
[Code].....
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