Cisco Firewall :: How To Add External Server To ASA 5505
Feb 24, 2013I have a Cisco ASA5505 and windows DHCP server, how do I add this external server to ASA so my PC clients can get DHCP from this server?
View 3 RepliesI have a Cisco ASA5505 and windows DHCP server, how do I add this external server to ASA so my PC clients can get DHCP from this server?
View 3 RepliesWe have a business case where we have a group of ASA 5505's in 3 locations with anyconnect user licensing on all 3 for redundancy.The problem we are facing is that when we need to authenticate our anyconnect clients we use active directory servers located at site 1 and the other 2 sites need to contact these MS AD Servers over an already connected VPN tunnel to site 1 (IPSec l2l) but cannot.So the layout is as follows:Site 1 (houses AD servers) has l2l tunnels to site 2 and 3Site 2 (any connect essentials enabled) has l2l tunnel to site 1 and 3Site 3 (any connect essentials enabled) has l2l tunnel to site 2 and 3AD servers are ip'd as 10.1.1.11 and 10.1.1.4If I use anyconnect to site 1 it authenticates fine - as expected.Site 2 and site 3 fails to contact AD serverAny thoughts on how we can accomplish this(or is it even possible to do?) without exposing the AD server in a DMZ or via external ip?
View 1 Replies View RelatedI have 3 external ips from my isp:
222.222.222.221
222.222.222.222
222.222.222.223
The first one I use to provide internet access to my office. The other two I'm going to use for the following: I'm going to deploy a server in internal network which must have 2 external ips on his network interface (& one internal ip on the second,but that's ok: I cannot put an extra network switch before asa & plug this server there: this server is virtual & is on esxi host in internal network. External ips must be assigned to servers' interfacw,bot just forwarded there (ms direct access requirement).
My current config:
!
ASA Version 8.4(3)
!
hostname msk-office
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We have a working config with 1 external IP, we need to a second webserver (https) and it should be routed via a second public IP address. I already tried some suggestions from the community but haven't been able to find the solutions.
xxx.xxx.xxx.194 is going to the internal IP of 192.168.60.1 for OWA (https)
xxx.xxx.xxx.195 should go to a new webserver on 192.168.60.3
both server should be connected using SSL This is the current configuration :
ASA Version 8.3(1) !hostname fwdomain-name domain.localnames!interface Vlan1nameif insidesecurity-level 100ip address 192.168.60.250 255.255.255.0 !interface Vlan2nameif outsidesecurity-level 0ip address xxx.xxx.xxx.xxx 255.255.255.0 !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!ftp mode passiveclock timezone CEST 1clock summer-time CEDT recurring last Sun Mar 2:00 last Sun Oct 3:00dns server-group DefaultDNSdomain-name domain.localobject network obj_any subnet 0.0.0.0 0.0.0.0object network NETWORK_OBJ_192.168.70.0_26 subnet 192.168.70.0 255.255.255.192
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I've configured a 5505 but internal clients can't ping external ip. To test I've connect a pc with the ip of the default router on the Outside int the ASA can ping the PC and the PC can ping the ASA, but internal clients can't ping the PC
PC config 195.12.23.241/28
Here's the ASA config, so far I've wiped the ASA and started with a blank sonfig and built it up but still not working.
ASA Version 8.2(5)
!
!
interface Ethernet0/0
switchport access vlan 2
!
interface Ethernet0/1
!
interface Ethernet0/2
!
interface Ethernet0/3
!
interface Ethernet0/4
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Does the ASA 5505 will allow the addition of a 2nd external link to its configuration? I know the device is capable of Redundant or Backup ISP Links, but that’s not what I need. I will have two different links for two different purposes. Currently we are using the ASA 5505 just for Internet access, so only the ISP link is connected, very basic configuration. We are planning a connection to a client’s global (MPLS) network and we need to be protected against any traffic coming from that network, ergo we need to use a firewall for connection to that external link.Now with the final configuration the Internet traffic must keep being routed to the ISP link, and some other traffic must be routed to the new external link. Can the ASA 5505 be configured for this scenario?
View 7 Replies View RelatedI have a Cisco 5505, 2 sites that are internal, 1 external IP (dhcp from cable modem). While on my laptop, ipad, iphone, I cannot access the server via it's external IP address. I MUST use the internal IP in order to access this site. I have heard of hairpinning, internal dns server(don't really want this).
View 8 Replies View RelatedWe have an ASA 5505 and are changing ISPs so we'll be getting a new static IP address. How do I change the external IP address using ASDM? (I haven't done it in 5 years so I'm rusty and just want ot make sure.) The ASA and ASDM are up to date.Am i correct in that I only need to change the external address in the configuration under Interfaces, then under Routing - Static Routes - Gateway IP I just need to enter the new WAN gateway address?
View 2 Replies View RelatedI have an old ASA 5505, and I'm having some trouble with Nat Hairpinning. I've done this with other firewalls before and I am having no luck now. I have an internal address that I wish to forward from an external address- so if someone goes to 123.456.789.012:3456 then it will forward to 192.168.1.244:92 (All numbers are arbitrary here- only for illustration). I have and Access Rule and NAT and PAT set up so that I can get in if I originate from outside the LAN. What I am trying to do is to have this work from inside the LAN as well- so that if I am at my desk, and I connect a device and type in 123.456.789.012:3456, it will deliver the content at 192.168.1.244:92. The problem I am having is that it just isn't working, and I cannot figure out why- When I started here, there was an address configured to work this way, and it still works- I just cannot find what is different between what I am doing and what the person who configured it did.
View 5 Replies View RelatedWe 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
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I have a couple of ASA 5505's which work fine for what they are doing VPN and all that - we have 1 DLINK DFR-700 Firewall left and I need to get a new ASA to replace this since it is old.
All this box really does is port forward external clients to 1 address on the internal lan for client software updates. Any example configs?
So lets say we have client a with IP 1.1.1.1 and client b has 2.2.2.2 - at the moment this is what happens client a and b come in through http and get mapped to the internal http server 10.10.1.2
So I need to setup about 100 clients which can come in through http only - get mapped to the internal IP and also keeping the internal server to be able to access anything outside.
I have a printer sitting on an outside interface e0/7 that external vendors were able to print to prior to an ISP IP address change and IOS upgrade.
We upgraded our IOS from 8.2.1 to 8.2.5. The printer wasn't changed so the MAC address mapping is still correct on the ISP translation list. The ISP issues DHCP MAC reservations for static IP address assignment. My printer doesn't seem to be getting the DHCP assignment now.
Here is the before and after config. I'm just wondering since this worked prior to changeing the IP and IOS changes if there is another command I need since upgrading from 8.2.1 to 8.2.5. The DHCP IP address is assigned and is working on my e0/0 vlan2 outside interface.
Config that worked prior to the IP and IOS change. hostname hrhdomain-name hrh.comenable password passwd multicast-routingnamesname 10.200.200.0 TestNet!interface Vlan1nameif insidesecurity-level 100ip address 192.168.1.8 255.255.255.0ospf cost 10ospf network point-to-point non-broadcastospf
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I have a issue that i am at a loss as how to solve it. I have an ASA 5505 as my firewall. I have users from other companies who visit from time to time and are unable to use their outlook email to send messages. They can however receive messages without a problem. I also have a situation where users who use windows live to access gmail are unable to send messages.
I have narrowed it down to the fact that these uses are using ssl/tls to send the mails. I did some research and found out about the inspect esmtp setting in the ASA. I have disabled it and i still have to problem. I have also removed all outbound deny statements and still no luck.
Of note is that i can send emails without attachments. They take a long time to go out ( from minutes to hours) but eventually they do. Emails with attachments of even 10k do not go at all.
I was running image 8.2.3 and i downgraded to 8.0.5...still did not work...i upgraded to 8.4.3...still did not work. I am now back at 8.2.3.
My Firewall config is attached. I am at my wits end as to what else to try. The company has not renewed support for the device so i am on my own here!
I have a cable modem internet connection and my cable modem is connected to an ASA 5505. The inside interface of the ASA has an IP address of 192.168.2.2 and is connected to a Linksys router's internet port which has an IP address of 192.168.2.1. The Linksys router then has a local area network of 192.168.1.0 and all my clients are on that network. Everything is working fine except in my ASA logs all the traffic shows up as the router's external address which is 192.168.2.1. I would like to see the 192.168.1.x address of the clients in the ASA firewall. I've tried making some changes to the Linksys router but that hasn't resolved it. Is there any changes I can make on the ASA to get this to work?
View 6 Replies View RelatedI have purchased a subnet of 8 private IP addresses from my ISP. 109.x.x.128/29.The ISP has placed a juniper router within our data centre which is routing purely from 109.x.x.206/30 to 109.x.x.128/29 with the ip of fa0/1 set to .129.
I have linked a cisco 5505 to fa0/1 of the juniper from fa0/0 and configured its IP to .130. I have configured NAT to translate our client pool 192.168.16.x /24 address' to the internet.
Is it possible for the 5505 to route / map my remaing private IP addresses through its external port? I have tried creating a seperate VLAN for a DMZ for our servers to sit within but am returned with a subnetting error as VLAN for my external port is all ready configured within the same subnet.
I'm configuring a 5505 for a remote office. Until they are assigned a static ip by the provider I will have to use the providers dhcp address. How do I construct an access list for the outside interface using the external address if I don't know it yet? is there a commnd that will insert the ip address in to the access list once one is assigned?
View 5 Replies View RelatedI have an FWSM running in multiple context mode running 3.2(18) code. I have 3 urls that I would like to block so I can't justify the cost of an external URL filtering server. I have found a way to filter individual URLs on the ASA but the same configuration does not seem to be available on the FWSM. At least not on my code. Any way to do this other than resolving the hostnames and blocking the current IP addresses?
View 1 Replies View Relatedi'' ve one appliance ASA 5510, v8.X and asdm 6X here u have my configuration :
interface Ethernet0/0 description Link To WAN nameif outside security-level 0 ip address 212.96.23.186 255.255.255.252!interface Ethernet0/1 description Link to LAN(forefront) nameif inside security-level 100 ip address 10.20.80.1 255.255.255.252!interface Ethernet0/2 description Link to CoreSW (DMZ) nameif DMZ security-level 50 ip address 10.70.70.254 255.255.255.0
i have on server ssh (10.70.70.10) on my DMZ .
I wan to enable my external user, i mean outside user to be able to access to this server which is in my DMZ for this port ( ssh)
I was just wondering if it's possible with an ASA 5510 to connect to the external IP address of an internal server from inside the network. I have already set up dns doctoring for dns lookups, and everything is working fine there. We have an application inside the network that tries to connect straight to the external Ip of another internal server. where to look in the ASDM 6.4?
View 2 Replies View RelatedI may have phrased the topic not too clearly, but I have an external domain name of mail.company.com , I want my users INSIDE the company be able to also get to url..., currently they cannot (nothing loads, looks to me as if firewall simply drops it) and I'm drawing a blank on how to get this done. Externally this works fine so if you're outside the company you can load up OWA just fine since my NAT rule translates the external IP to internal IP, but something is blocking this from the inside.
I have an ASA 5510. If you can just sent me on the right path with theory I'll figure it out on my own, I don't need exact steps, but I must be thinking of this wrong as I'm not getting anywhere.
We have Cisco ASA 5505 with ASDM 5.2 We have one Proxy server in our Local Lab and pointed to Hosted service(Simple Signal)issue is, When our proxy server send register to hosted server, ASA change private IP and post with outside IP and src port as 1063 every time.
Here is debug log on real time monitoring.
Aug 24 2011 05:21:19 302015 203.xxx.xxx.226 192.168.1.51 Built outbound UDP connection 3774 for outside:203.xxx.xxx.226/5060 (203.xxx.xxx.226/5060) to inside:192.168.1.51/27014 (99.119.161.107/1142)
Aug 24 2011 05:21:19 607001 203.xxx.xxx.226 Pre- allocate SIP Via UDP secondary channel for inside:192.168.1.51/27014 to outside:203.xxx.xxx.226 from REGISTER message
Aug 24 2011 05:21:19 710005 203.xxx.xxx.226 99.xxx.xxx.107 UDP request discarded from 203.xxx.xxx.226/5060 to outside:99.xxx.xxx.107/1063
Here 99.xxx.xxx.107 is Our ASA Outside IP address 203.xxx.xxx.226 is Hosted server IP address. My ASA config is attached.
I have an ASA 5520 with a DMZ with private addresses that I SNAT to my outside network. From inside the DMZ I can reach servers by both the internal private IP and the public IP, except if the IP is from the server trying to connect. So, say I have server1 and server2. I can connect from server1 to server 2 with both public and private, but can't connect from server1 to server1' using the public IP. ASA logs show that packets are being denied due to land attack. DNS doctoring is not an option for me.
View 1 Replies View RelatedI am using a 6500 with FWSM. I need to separate an internal server/HQ network from 3 or 4 different external connections. The external networks do not necessarily need to be isolated from each other.I have the option of using a 3 layer model: L2 Access layer to SVIs on the Distribution layer and then L3 to the 6500.L2 Access, connecting directly to the 6500s, with the SVIs on the FWSM.Is it better to have the FWSM outside the MSFC or Inside? Am i correct in thinking that "inside" vs "outside" is determined by whether the SVI's are configured on the FWSM or the MSFC? is there any performance impact from having the FWSM doing the routing instead of the MSFC.If the vlans are all configured on the FWSM, what is the 6500 doing, other than providing switch ports?
View 1 Replies View RelatedI have an old ASA 5505, and I'm having some trouble with Nat Hairpinning. I've done this with other firewalls before and I am having no luck now. I have an internal address that I wish to forward from an external address- so if someone goes to 123.456.789.012:3456 then it will forward to 192.168.1.244:92 (All numbers are arbitrary here- only for illustration). I have and Access Rule and NAT and PAT set up so that I can get in if I originate from outside the LAN. What I am trying to do is to have this work from inside the LAN as well- so that if I am at my desk, and I connect a device and type in 123.456.789.012:3456, it will deliver the content at 192.168.1.244:92. The problem I am having is that it just isn't working, and I cannot figure out why- When I started here, there was an address configured to work this way, and it still works- I just cannot find what is different between what I am doing and what the person who configured it did.
View 7 Replies View RelatedI have a Cisco ASA configured for Any Connect clients. I also want to pass 443 traffic back to an internal web server, but not sure if I can do this since the Any Connect clients are already connecting over 443 to the ASA, right?
View 8 Replies View RelatedWe have a Cisco ASA 5505. As of yesterday we could no longer access our web server (the web server is hosted off-site). Pinging the DNS address and direct IP (from the firewall and a PC) both return no response. Pinging the IP from the T1 router responds properly, meaning the router can access the web server, but the firewall cannot. Accessing the web server has never been a problem, and no configuration changes have been made to the network/firewall. Other locations can access the web server just fine.
View 1 Replies View RelatedI'm configuring a Cisco ASA 5505 ASA Version 8.3.1 I want to publish my web server is in the DMZ (10.30.30.1) and server address is 10.30.30.30 but it still fails.I have only one public IP, and hope that when they call the Public IP, my web server appears, another problem I have is that when I assign the public IP to my interface OUTSIDE my LAN loses internet connection.I have to do to publish my web server and the LAN computers have internet access?
View 16 Replies View RelatedI want to configure my Cisco asa 5505 as a dns server, so that when i configure any of my network systems ip address and use my firewall as a default gateway and dns ip, the system should be able to browse internet.
View 5 Replies View RelatedInstead of using a IP address I would like to use a host address that points to a NTP pool.An example would be:ntp server 0.north-america.pool.ntp.org Can this be done on the ASA series?
View 1 Replies View RelatedI have a client in a workgroup environment. They are a small company with perhaps twenty systems. Their infrastructure consists of a Dell Switch, a Cisco ASA-5505 which hands out the DHCP and a router. And that's that.They have been using an external IP as their DNS Server to get out to the Web. However, they now want to add an internal Linux-based DNS server.In looking through the ASA-5505 today I noticed a field for DNS enteries. Is this where the IP for this new internal DNS Server (in the secondary DNS field) would go?If so, would it be necessary to reboot the ASA-5505 for this change to take effect?
View 12 Replies View RelatedI get the following message when appling "DHCPD ENABLE INSIDE"
DHCP: Interface 'INSIDE' is currently configured as CLIENT and cannot be changed to a SERVER by a SERVER feature
This is an ASA 5505 Running 8.2.
I would like to allow users from network 10.132.23.0/24, 10.132.33.0/24, 10.132.24.0/24 access to our SQL server(192.168.1.7) located on the inside interface(192.168.1.0/24 network) Those networks (10.132.0.0/16) come from the DMZ interface.
View 12 Replies View Related: Saved
: Written by enable_15 at 03:51:29.049 UTC Mon Feb 4 2013
ASA Version 8.4(4)1
host name cisco asa
enable password xxxxx encrypted
password xxxxx encrypted
names
interface Ethernet0/0
switch port access v lan 100
interface Ethernet0/1
interface Ethernet0/2
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