Cisco Firewall :: Can ASA 5505 Support Two External Links
Oct 3, 2012
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?
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Jun 9, 2013
I need to know if the cisco ASA next generation specially ASA 5515X support PBR or no ?how to implement it? Also if i have many internet connections and i need to dedicate 2 ISP’s ADSL internet lines to certain service (such as mail) if the 1st fail, so the 2nd line come up to make redundancy with it ----------- Is this available on cisco ASA next generation.
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Aug 7, 2012
I have a customer that wants to purchase an ASA 5510 security plus to terminate client VPN access for an external support team. The customer claims to want URL content filtering/proxy which leads me to suggest a CSC SSM 20 plus module. But upon further conversation, he mentioned wanting IPS. In this case, the customer does not seem to know the difference between the URL content filter/proxy and the IPS and uses both terms interchangably.
1. What would you suggest in your expert opinion would be the best module to get for this customer? IPS or CSC
2. If I go with the CSC module, where can I find good documentation on how to configure it and get it up to date?
3. does the CSC module provide any web proxy functionality?
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Feb 24, 2013
I 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?
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Dec 26, 2011
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
[code].....
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Nov 4, 2011
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
[Code] .....
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Jun 4, 2012
I 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).
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Mar 13, 2013
We 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?
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May 30, 2013
I 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.
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Dec 20, 2012
I got a Cisco 870 router. running C870-ADVSECURITYK9-M), Version 12.4(15)T7, does this support two link from different ISP.
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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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May 4, 2011
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.
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May 16, 2013
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
[Code]....
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Nov 28, 2011
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!
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Nov 10, 2011
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?
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Jul 25, 2011
I 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.
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Sep 10, 2012
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?
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Aug 2, 2011
I am going to update my Windows Small Business Sercer 2003 to 2011.I currently have an ASA 5505 with the IPS installed on it. I am reviewing the migration procedures from Microsoft. Within the procedure it asks if the firewall or router supports UPnP. Does my ASA 5505/IPS support UPnP?
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Nov 3, 2011
I have two Internet links:ISP1: only Site 2 Site VPNsISP2: only HTTP/HTTPS traffic and incoming remote access VPNs With the security plus license I could correctly configure them both as active at the same time on the same ASA device. Also, I've successfully accomplished the following traffic separation:
Site to Site VPNs goes out through ISP1HTTP/HTTPS traffic goes out through ISP2 The customer request is that, when ISP1 fails the S2S traffic is relayed through ISP2 -> This is working fine, I've already tested!But when ISP1's service is restored and that link is working fine, I want that the S2S VPN traffic gets relayed through it again automatically, which didn't happen. My question is: using SLA will the S2S traffic be relayed through ISP1 again automatically when it's services are restored? If not, which technology should I use to accomplish this?
PS: This is all configured on only 1 ASA 5505 whose license was upgraded.
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Sep 5, 2011
I have two sites with identical asa 5505's and each has the dual wan/ISP links and are set for failover using sla monitor tracking. I would like to create a vpn between these two sites that stays active regardless of which ISP link is online. Do I simply make two crytpo map statements10 and a 20 inside each of the asa's to each of the other ASA's STATIC PUBLIC IP's? [code]
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Jul 8, 2012
I 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.
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Oct 26, 2011
I´m Trying to synchronize the clock with NTP server external, these ntp server only support NTP version 3.Can I change the NTP version in the ACE4710 Appliance to support the ntp server external?If is possible, How I can change it ?
This is the version:
Cisco Application Control Software (ACSW)
TAC support: [URL]
Copyright (c) 1985-2011 by Cisco Systems, Inc. All rights reserved.
The copyrights to certain works contained herein are owned by
other third parties and are used and distributed under license.
[code]....
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Jan 18, 2012
I need to setup an ASA 5520 to correctly NAT over two wan links. The idea sounds pretty straingforward but it does not, I have only 2 IPs that are involved with the NAT
192.168.1.10(Nated Server) -- 172.16.1.10(Web Server)
I have 2 interfaces that sould be applied to it let's say outside1, outside2. The server is reacheable through each outside interface, the outside interfaces is selected uppon dynamic routing and that is working OK.
So if link outside1 is up the Nat follows this schema 192.168.1.10(inside) -- 172.16.1.10(outside1)
that works fine, but I want that automagically changes over when the link outside1 is down to 192.168.1.10(inside) -- 172.16.1.10(outside2).I know I can't have a NAT with 2 IPs and 2 different interfaces (ASDM doesn't allow me to), is there a way to implement this??
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Aug 4, 2012
I have a 5510 with me. I want to terminate two Internet links on that. The primary Internet Leased Line to access my DC network using Site-to-Site VPN, and the secondary ADSL connection to access my other location network via VPN and and for web browsing. How can I achieve these goals.
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Dec 29, 2012
We 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?
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Jan 28, 2010
I'm on my first configuration of a Cisco firewall. I'm trying ASA 5505 using Cisco ASDM 5.2 (not GUI). I configured Vlan1 (inside) and Vlan2(outside) and all seems to work correctly. Network clients can use Internet and ping internal LAN. But I've some problems with vpn and other services: 1. when I try to connect to external VPN server the connection procedure stopped in username/password validation (if I try directly, without firewall ASA, there's no problem) 2.I've problems also to see external security cam working trough a web server. I open port 1723 - 500 and GRE. What can I do more?
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Mar 2, 2012
I 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
[Code]....
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Jun 9, 2010
I'm looking to setup AnyConnect VPN with no split tunneling. ASA 5505 v8.2. It seems this should be really easy. I must be missing something.
I can get the AnyConnect users to connect fine and they can access sites internal and at other IPSec-tunneled sites. But no access to the internet.
Internal is 10.1.1.x, VPN pool is 10.1.1.251-253 (Temp list for testing). I issued the following tracer: packet-tracer input outside tcp 10.1.1.253 12345 69.147.125.65 80 detailed
The last reported point (where it fails) is:
Phase: 7
Type: WEBVPN-SVC
Subtype: in
[Code].....
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Sep 16, 2012
here, am used to the RouterSwitch CLI but been asked to set up an ASA 5505 8.4.Quite simply I am trying to at least test out a static PAT from an external source to an internal server in a test environment and no matter whether I set it up as an auto-nat or a twice-nat whenever I run a packet tracer I end up with the same error. This is the packet-tracer I am running-packet-trace input outside tcp 80.80.80.80 3389 10.240.0.10 3389
Phase: 5
Type: NAT
Subtype: rpf-check
Result: DROP
Config:nat (inside,outside) source static server publicIP service RDP RDP
Additional Information:
[code]....
Now I have a couple of questions initially. I have made the presumption that packet-tracer does not look at any external devices while running - as in as long as the ports are up it doesn't matter what is on the end of them for testing purposes? Is there anything I am missing?I have this morning wiped the config and have simply set up the adapters, a default route and twice nat and am not sure why I keep getting the error. I am sure it is something very simple and I'm being a massive donut!
[code]...
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May 27, 2011
I need my ASA 5505 to support ESP-AES-128-SHA on 2 dynamic clients, one with PFS and another without PFS. I add 2 dynamic maps like this. [code] Now the client without PFS can be connected, but the one with PFS cannot.How can I set the dynamic maps so that they can support both clients at the same time?
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Nov 18, 2011
i have asa 5505 adaptive security plus. and i have only 3 vlans . outside , inside , DMZ restricted.so it's working fine but i want to connect to my inside another private network, or do i need to buy License.and how i can activate the license key.
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Feb 28, 2010
Can any ASA 5500 in particular the ASA5510 firewall support jumbo frames (i.e. greater than the default standard 1500 Bytes frames)?. I plan to use the ASAs to setup a point-to-point IPSec tunnel and need an Application frame of 4Kbytes intact and not segment it.I have done little checking on the Cisco Website and see it mention of Jumbo frames on the 5580 on 10Gig interface but didn't see mention 5510. 5580s are way over-kill and expensive for what I need is to run a mission critical one IPSec point-to-point with maximum of no more than 100Kbps so 5510 is perfect for me but not sure if it can carry the jumbo frame?
On the routers and switches it's the MTU settings and they are configurable per interface and I am OK and the circuit is T1 which the Telcos said it's OK since it's physical layer so the only unkown is the firewall.
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Jan 3, 2013
I have a cisco 1841 router , and i want to configure zone based firewall on it. But the document of zone based firewall only said that "after 12.4(6)T" can support zone based firewall. I use the ios " c1841-ipbasek9-mz.124-15.T9.bin ", but it can't support ZFW. What kind of ios support ZFW. for example: ipbase, ent base, ip service ,advent etc.
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