Cisco Firewall :: ASA 5510 Two Internet Connections
Aug 1, 2011
We are in the process of getting two new connections pulled in that I would like to utilize in the following configuration.
DS3 - 45/45 I would like to use this circuit for all of our servers to NAT out of as well as our VPN tunnel to our remote site. It will be much more reliable than our cable line.
Cable Internet - 50/10 I would like to use this for all internet traffic that users generate. I would like to be able to fail over to the DS3 if this line goes down.
To get all traffic go out the cable line would take a dynamic NAT rule and a default route. How would I automate a failover to the DS3 with a backup route and dynamic NAT rule?
I understand that if the DS3 goes down it will take manual intervention to bring the tunnel back up and servers with static NAT will need reconfiguration.
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Apr 5, 2013
Is it possible to have a Cisco ASA5510 with two internet connections performing as follows.
Internet A---------All traffic except LAN to LAN vpn
Internet B---------LAN to LAN vpn
I cant find anything definitive on google to say it will or wont, i know it cant do policy based routing.
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May 29, 2012
I am having an issue when implementing an additional internet connection on our ASA 5510. The new connection is "TWCOutside". I was my understanding that static NAT would force our externally hosted servers (Email, PPTP VPN, and FTP) to continue to utilize the "ATTOutside" connection. Our remote site-to-site VPN traffic has two static routes configured to force it to continue to use the ATTOutside connection.When I switch the metric on the 0.0.0.0 0.0.0.0 98.103.148.145 route to 1, and change out default dynamic xlate to use "TWCOutside", it "mostly" works as expected. Email, the PPTP VPN server, and our remote site-to-site VPN server continue to use the ATTOutside connection as designed. Our end users begin using the new connection for thier internet browsing.
However, our FTP server, in the DMZ, completley loses outside access. It cannot ping to 8.8.8.8, or resolve DNS queries. The is a static NAT statement for this server, as it is using one of our dedicated public IP addresses. I need it to continue to do so for the next few weeks.Effectivley, we just want to give our end users internet browsing on the new TWC link, but leave everything else on the old ATT link for the time being. The only problem I am having is the DMZ connection. I am currently "rolled back", so no one is using the new connection until I figure this out. I can easily switch the metric and dynamic PAT back to using the TWC connection, but I need to have some things to try with the DMZ before doing so. [code]
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Sep 12, 2011
normaly the agents has a persistent connection with the kaseya server (monitoring server),The connection re-established afther the next check-in of the agent, instead of a persistent connection. Now we need to wait to the next check-in before we can connect to the agent. This is a big performance issue, the check-in time of the agents are 3 minutes.I see a lot of the following messages in de syslog:
6Sep 12 201120:27:48302013customer site527985721Built inbound TCP connection 5418112 for outside:(customer site)/52798 (customer site/52798) to inside:kaseya server/5721 (outsideIP/5721)
6Sep 12 201120:29:09302014customer site527985721Teardown TCP connection 5418112 for outside:(customer site)/52798 to inside:kaseya server/5721 duration 0:01:21 bytes 45 TCP FINs
I create a normal static nat rule from the kaseya server to a public ip address, and i define the protocols in de secutiry policy.ICMP has been allowed.cisco asa details:System image file is "disk0:/asa824-k8.bin" This platform has an ASA 5510 Security Plus license.It's look like a connection time-out between the agents and our cisco asa.
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Dec 5, 2012
Our Cisco ASA 5510 running 8.4(4)1 just started dropping packets and our AnyConnect clients are seeing horrible performance. The system is extremely slow compared to just a couple days ago.Nothing has changed on the system. I can post the configs if needed.
firewall# sho int
Interface Ethernet0/0 "outside", is up, line protocol is up
Hardware is i82546GB rev03, BW 1000 Mbps, DLY 10 usec
Full-Duplex(Full-duplex), 1000 Mbps(1000 Mbps)
Input flow control is unsupported, output flow control is off
Description: == WAN Interface ==
[code]....
I have done a "sho vpn-sessiondb detail svc" and I can see the dropped packets of the individual users, but cannot see why the packets are still dropping.how I can correct this and restore speeds?
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May 19, 2012
We have a site with two inbound circuits, one for internet and one for our MPLS. Each circuit is being terminated by a 2921 Router and matching ASA 5510 Firewall. For the internal network, the Internet ASA's inside interface (172.16.0.1) is the default gateway for all hosts. OSPF is the routing protocol between all the routers and ASA's and routing is working. In fact, ICMP is working as well. From an inside host (172.16.0.81), we can ping anything on the MPLS network. But when I try to use telnet (for example), the connection fails. If I add a route to 10.10.10.0 to the host, or re-configure the host to point to the MPLS ASA (172.16.0.254) as it's default gateway, connections will establish.
Both ASAs are running 8.4(3), and have the following commands:
same-security-traffic permit intra-interface
interface Ethernet0/0
nameif outside
[Code]....
And from the MPLS nodes, I can see a tcp request is made.
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May 22, 2011
We have an ASA5510 and we're currently using 1 internet connection to handle our site-to-site VPN connection and our internet traffic. We have a second internet connection on hand. What we would like to do it use BOTH internet connections: (1) will be dedicated to our VPN connection, (1) will be handling all our internet traffic. How can we get this setup? We're running Software Version 8.4(1)
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Feb 26, 2013
I have some problem with the ASA 5510 ver 7.0(6). My manager wants to keep this as backup. tried lots of things but still users not able to access internet nor can i ping anywhere.For example when i ping 4.2.2.2 i dont get any reply.The runing config is below for ur ref :
HQ-ASA-01# show running-config
: Saved
:
[Code]......
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Sep 18, 2011
1 isp connection which splits into two. One plugs into 5510 with ouside ip and the other plugs into the other 5510 with outside ip address.
see diagram below:
Router routes are set as:
ip route 0.0.0.0 0.0.0.0 10.x.x.1
##
ip route 10.x.x.0 255.255.255.0 10.x.x.2
We will be introducing another isp into our network. We want to remove our current isp and switch. But we dont want to do the cut overnight. We will migrate into our new isp. so for a while we will have both isp connections.
What i am thinking of doing is taking one of the ports on 10.x.x.1 and configuring it for our replacement isp network and the same for 10.x.x.2. Will that work?
Can i have ASA 5510 configured for 2 seperate ISP connections? What kind of route will i set on my router?
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Apr 13, 2012
My ASA 5510 IOS version 8.4.2 CSC IOS version is 6.6.1125,I configured ACLs and Class maps to forward all HTTP,HTTPS,SMTP,PoP3 and FTP taffic to CSC.Here my issue is my CSC not getting updating from the internet and some email sites like Webmail and Gmail are not taking forward after entering credintials. If i removed ACL belongs to the HTTPS , all are working fine( CSC updating well and all email sites are working.)
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Apr 22, 2012
I've created a DMZ on ASA5510, it can access anything internal but cannot get out to internet. I cannot manage the ASA from the DMZ subnet neither.
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Nov 14, 2011
I implemented a ASA5510 with latest software version. I configured outside interface, default route, PAT to the outside interface. I am able to ping and telnet to the inside interface of the ASA.But internet is not working.Did i miss any configuration?i enabled icmp to outside,. i did a ping to the next hop from ASA. but it is not working.
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Nov 14, 2011
I can't seem to get internet access working from the DMZ network through our ASA 5510. PCs on the DMZ can ping the ASA but can't get out to the internet.I will attach a (cleaned) configure.
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Oct 29, 2012
I can get access to the internet from the ASA 5510 itself and that is confirmed via pings. However, anything behind the ASA does not have internet access, on any VLAN/sub-interface. I've attached my running-config.
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Feb 27, 2012
the set-up is: a DSL modem in half bridge (it does all the PPPoE connection) passes our static IP (55.167.x.x) to the ASA's outside interface ... (the modem has an IP of 192.168.1.1, but not sure this matters)
then I have one inside interface on 192.168.43.1, which connects to a server and we have a working site-to-site VPN between this server and a client.. so I know most of it's set up right ... nothing else is on the 192.168.43.0/24 network.
the management interface is on 200.200.1.0/24 so it's out of the way and incidentally connected to a dedicated PC, which also has console access via the blue serial cable.
the last interface Main_Network is on the 192.168.0.0/24 network and it's this that I'm trying to get to work... at the moment I just have one Windows PC connected directly (does it need to go through a switch?) into the ASA for testing with a static IP (192.168.0.72), but I can't ping anything outside from the PC... only the ASA's interface (at 192.168.0.30).. I have the gateway on the PC set as 192.168.0.30 by the way.
The ASA can ping all the inside machines and anything I like outside.
Here's my config ... the static routes are there for when this replaces the current modem/router and the whole network plugs into the ASA.
ciscoasa(config)# show running-config
: Saved
:
ASA Version 8.2(5)
!
hostname ciscoasa
[Code]......
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Dec 1, 2011
I lost the ability for my Web server (or any servers in the DMZ) to access the Internet. However, the Web server is still being used fine from the Internet. Here is my config
ASA Version 8.4(2)
!
hostname xxxx
domain-name xxxxx
enable password xxxx encrypted
passwd xxxx encrypted
names
[code].....
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Feb 14, 2013
I have installed ASA 5510 to limit sessions of Users to 170. But as soon as i put it infront of network before router, Internet goes down and i cannot browse or something.
The network is simple, Cisco three layer model with users on Wired LAN/Wireless LAN using WLC. Approx 2500-3000 users.
[code]...
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Nov 29, 2011
Context:1- My company has one ASA 5510 configured with Site-to-site VPN, Ip sec Cisco VPN and Any Connect VPN.2- We use ASA to connect to the single ISP (ISP 1) for internet access. ASA does all the Na Ting for internal users to go out.3- A second link is coming in and we will be using ISP 2 to load balance traffic to internet (i.e. business traffic will go via ISP1 and “other” traffic will go via ISP2).4- A router will be deployed in front of the ASA to terminate internet links.5- No BGP should be used to implement policy (traffic X goes via ISP1, traffic Y goes via ISP2). Questions:How do I get this done, particularly, how do I tell the router, for traffic X use ISP1 and for traffic Y use ISP2? PBR is my friend?Since I will be having 2 public Ip Addresses from the 2 ISPs, how do I NAT internal users to the 2 public Ip addresses ?. Finally, which device should be doing the Na Ting? The ASA just like now or move Na Ting to the Router?
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Oct 31, 2012
I had an experience this week of installing a 5510 ASA with 8.4.3, also tried 8.4.4(1) with the strange effect that I randomly was losing contact with the internet. The interface stayed up/up. no errors or what so ever on the interface. Reseat of the DSL wire no result. Reseat of the outside interface cable made it work again. And after some time lost connectivity again. It did not recover by itself so had to let someone do a reseat again and again and.... The outside was using DHCP client. A lease was given and an IP also. Nothing strange to find. Talked to the provider which could see the DSL and the DHCP lease. Finally I downgraded the firmware to 8.4.2 and the problem was solved.
output
interface Ethernet0/0
nameif outside
[Code].....
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Jan 11, 2012
I have recently made some chages to my ASA 5510 (not sure what) I was previously able to ping url... and I am now not able to ping anything on the Internet, but The Internet connectivity work perfectly.
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Nov 30, 2012
I have been at this for the past few hours now. I just cannot get this device to pass through traffic to the internet. Here is the basic topology:
Default Gateway (ISP): 208.118.125.129/29
IP of outside int (e0/0): 208.118.125.130/29
ip of inside int (e0/1): 10.1.1.1/24
igniteCSGfw(config)# sho run
: Saved
:
ASA Version 8.0(4)
[Code].....
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Apr 20, 2011
We are using an ASA 5510 as our gateway to our ISP. All of our VOIP traffic is sent to an Internet SIP provider for our outbound calls. Our pipe to the Internet is 100Mbps metro ethernet. I am trying to find a way to provide QoS for this traffic so that I can reserve 20Mbps of the available 100Mbps pipe for VOIP traffic.From what I've been able to figure out so far I would use a combination of priority queues and traffic policing. However, it seems that this is nearly impossible to accomplish because I cannot control the remote device that my ASA connects to because it is the ISP device. I could police traffic on the inside interface of the ASA. However, lets say that a client on our network starts downloading from an Internet host and the downloaded traffic saturates my Internet connection. I could police this incoming (from the Internet) traffic on my outside interface of the firewall. This would drop the packets but the bandwidth would have already been used by the time it reaches my firewall.Would the fact that I'm policing incoming traffic on my outside interface cause the sender to throttle down their transmit rate because packets are being dropped? Would this achieve my goal of guaranteeing available bandwidth for my VOIP traffic by not allowing other traffic to saturate the link?Most documents I find regarding this topic describe providing QoS for VOIP traffic traversing a VPN connection in which case you could configure both end devices.
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May 17, 2011
We have Cisco ASA 5510 256RAM running 8.2.4 with CSC 6.3.1172.4, it slows down internet traffics drastically when we do speed test, we get something like this, It the computer is bypassing the CSC, it gets This was done when there's very low traffic on the LAN and CPU is low usage on the CSC. The CSC has been re-imaged also but still doesn't solve the problem.
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Dec 18, 2011
I have an ASA 5510. I am doing a new install at our new data center. I am having trouble getting internet access from an inside LAN interface to the outside WAN interface.Our colo center has given us the below IP info. [code]If I do a static config on my laptop of IP 198.145.XXX.82 Mask 255. 255. 255. 240 DG 198.145.XXX.81 I am able to get the web fine from the line in our rack. I used the ASDM software to setup the ASA. I set its WAN IP of 198. 145. XX X. 82 and mask as 255.255.255.40 for interface 0/0. For interface 0/1 I made a management LAN of 192.168.180.1 with mask of 255.255.255.0.I can connect to my LAN ok but do not have outside internet access. I have also tried .80 and .81 for the WAN IP of the ASA. [code]
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Dec 9, 2012
I have to configure a default-factory firewall (ASA 5510) in a simple scenário like this image represents:At this moment i have configured the interfaces as represented above and at this moment what i want is grant access from a LAN computer (10.10.0.0/24) to the internet.
Should i configure some acl? I read that all traffic from an interface with a superior security level to other interface is allowed, so since my inside interface has a security level of 100 and the outside 0, it should be possible access to internet from an inside computer?!
From all configurations and examples i have seen around, they all contemplate a fixed IP address from the ISP, but in my scenário i have a dynamic one. This fact matter for the configuration i want to do?
My firewall is running the software version 8.2(5).
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May 10, 2013
Cisco ASA 5510 and I want to configure it as an access gateway following this .[URL] the basic configuration steps on what to do on ASDM.
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Aug 1, 2012
users behind asa5510 on both vlans10 and 20 have slow internet speeds (2Mbps down/170kbps up). carrier provides 13Mbps down/5mbps up and speed tests on another port on the asa 9Mbps/5mbps. There is no speed/duplex mismatch on the switch (cisco 2960) that asa port is connected to. what else could possible cause that ? cisco 2960 is in vtp transparent mode. mtu on both vlans is matched.
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Jan 15, 2013
I need to route to sub nets form 2 different ASA interfaces. The ASA also has an outside interface works like gateway for internet access. Here is my configuration:
ASA Version 8.2(1)
host name ICE3
names
interface Ethernet0/0
name if outside
security-level 0
ip address 201.199.xxx.xx 255.255.255.248
[Code]....
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Jan 28, 2012
we have installed an asa 5510 with 3 interfaces : dmz (web server 172.20.0.59;application server 172.20.0.58; server mail 172.20.0.157), inside (lan) and outside (connected to a router for internet connexion). the problem is that the connexion internet is slow in the inside (lan). our dns is in the ouside with ip address x.x.x.60 ( the dns have translated addresse to inside and dmz 172.20.0.60). the router connected to our IPS have x.x.x.33 (our default gateway for internet). there is a simple switch between firewall and router. the inside interface of the asa is connected to catalyst cisco 6509 (the interface gigabit of the 6509 is configured to auto speed and duplex). the asa have base lisence.here is the configuration of the asa and the output of commandes show interfaces (inside, outside), show asp drop , show perform.
firewall# show run
ASA Version 8.2(1)
!
hostname firewall
domain-name xxx.xx
enable password dgft12ghkHKM123Z encrypted
passwd dgft12ghkHKM123Z encrypted
names
[code]...
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Jun 7, 2012
My ASA 5510 has stopped accepting connections today. I cannot connect with ASDM either. ASDM hangs at "Contacting the device. Please wait" and does not return an error or time out. I can telnet into the device but my CLI knowledge is elementary at best. I'm trying to determine how to view or enable the correct logging and view via CLI. I have looked at the client log from one of the users that cannot get in and have attached it. It looks like Phase 1 is not completing but I'm not sure how to view what the ASA is logging. I have run debug cry isa and debug cry ipsec but it just returns to the prompt and I'm not sure what I should expect to see or what command to run to view the results.
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Mar 30, 2011
I have some remote locations that connect to my ASA 5510 cluster (Aktive/Passive) using the Cisco VPN Client, from which the connection gets disconnected at random intervals (could be 5 minutes, but sometimes after 15 minutes). However, some other remote locations do not have this problem. All locations have the same VPN client configuration (distrubited by pcf file).
I already disabled isakmp keepalive on the ASA but this did not work. If I read it correctly, the Cisco vpn client logging shows that the ASA initiates the ending of the connection.
Code...
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Feb 5, 2012
We need to deploy a Cisco ASA 5510 behind the Internet facing router for Remote Access VPN (RAVPN). We bought the block of 16 IPs (in a different subnet) which is routed through the main router (69.x.x.x)and configured the outside interface of ASA with a public IP 64.x.x.x and subnet mask 255.255.255.240. Below is the network structure.
But, we can't access the ASA by it's public IP.
DSL Modem → RV082 router → Switch → LAN
(69.x.x.x) ↑ (192.168.0.0)
Cisco ASA 5510
(outside: 64.x.x.x, inside: 192.168.0.172)
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Feb 15, 2012
I have a ASA 5510. I setup basic configuration to test internet with 2 ISPs. My first line works with out any problem. But my second line doesn't work. Even when i wipe the configuration, and setup only my second isp. Internet doesn't work. Can you tell me if there is anything wrong with this config?
CaaaA01# sh run
: Saved
:
ASA Version 8.3(1)
!
hostname CaaaA01
domain-name example.com
[code].....
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