Cisco VPN :: VPN To ASA With Dynamic IP In Branch Office With 5505
May 22, 2012
I'd like to connect through a VPN the HQ office to a Branch using two ASAs.I have a 5520 in the HQ and 5505 in the Branch Office.My problem is in the Branch office where I have a dynamic IP (ADSL).
I couldn't find a example this kind of configuration.
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Apr 23, 2013
I have a problem with a branch office setup, and I can't for the life of me think of what the problem is.I have a remote office setup, using an ASA 5505 that is set up to establish an easy vpn connection to the central network. The connection at the branch office is a 20/5 cable modem, the central network has a 25/25 fiber connection.
The issue I have is this. Wired clients work fine at this branch office, at least 95% of the time. I have a lightweight AP there that can come up and join the controllers at the central network, no problem. I haven't done anything with H-REAP because there are really no resources locally they need that would allow them to do their work, so all traffic is tunneled back to the WLC.
Wireless clients can authenticate to the AP, and I can get 15-20ms ping responses from them all day. Latency never comes close to the 600ms proposed limit with CAPWAP. Yet, for some reason the performance of the clients is problematic. Webpages will frequently not load correctly, they experience some freezing, and with one application we use - it refuses to load completely.If we bring these same computers to an AP connected to our central network, on the same SSID, they work flawlessly.
Something about this particular location is causing a lot of grief for our users.For what it's worth, we are running WCS 7.0.230.0 and the WLCs are on 7.0.116.0. The ASA is running a pretty basic configuration, pretty much out of the box with the easy vpn configuration entered.
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Dec 17, 2012
I am trying to configure access to several remote offices for users who VPN into our main datacenter. The datacenter has a 5520, and the branches are connected through IPSec L2L VPNs. Branches all have 5505 or 5510's. Remote users use IPSec via the Cisco remote Client. Remote access into our data center works, and the L2L VPNs are perfect...just now that i need remote users to access the branches after Remote access VPNing (for support) i cant get that part to work.
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Apr 11, 2012
I am trying to set our VPN connection to route to our branch office from a VPN Client. So far I did not succeed and at this point I am stuck.At our office we have a VPN Server which enables VPN Clients to connect to our main office with an IP Range of 192.168.104.0 with subnet 255.255.248.0 and a branch office with a IP Range of 192.168.25.0 and a subnet 255.255.255.0Internally on the LAN the routing is done by our firewall, which acts as DHCP and Default gateway. It connects the 2 LANs by a leased line.When I ping an IP address in our branch office from our main office I get a reply.
Now when a VPN client connects it gets a IP Address in the range of the main office from our firewall and the client can connect to all computers in the main office network. However if i try to connect to a computer in the branch office it does not work.I tried a static route in the Routing and remote access Server (which is Windows Server 2003 R2) and I tried adding a static route to the DHCP settings on the firewall. In both cases it does not connect from the VPN Client to the branch office.Searching the internet, since the examples are all based on a setup with a RAS Server on both networks. The LANs are already "integrated"/"physicly connected" trough the routing on our firewall and its leased line.
I also tried settings on the VPN Clients machine. Settings like "Use gateway in remote network" on or off and tried adding static routes. This did not work, since the Default gateway I must use is not on the same range as the home network and returned an error trying that.What I noticed is that the VPN Client gets a route which uses the VPN CLient IP as default gateway. Makign a static route like that will work (I think), but since the IP addresses for the VPN clients are obtained through DHCP and can vary each time, there is no way (i think) to automate adding a route with, for example, a batchfile that I could give to the employees connecting trough VPN because of the variable IP.
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Aug 1, 2012
We have AT&T Managed MPLS service are our datacenter and our branch office locations. AT&T has provided the routers and simply give us an ethernet connection. We also have ethernet connectivity to the internet through our datacenter...with our network being protected by an ASA 5520.Each branch location has a 29xx series router (voice gateway) and switching gear attached to their AT&T MPLS router. Some of our branches also have 3rd party cable internet service with an ASA 5505 to protect it from the internet. What I'd like to do is better utilize this cable modem/ASA5505 setup. Right now, if there were an outage, I would be connecting manually to the remote location to change static routes to point to the cable link and to configure a VPN tunnel between the remote and our DC.
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Jun 29, 2011
I've followed Watchguard's instructions for configuring a Branch Office VPN connection, and I'm unable to connect. I have configured the Watchguard gateway to accept remote-to-local connections and put in the Watchguard's public IP address as the local connection, and the WRVS4400n's public IP as remote.The Linksys has the local VPN group configured as 192.168.0.0./24 and the remote gateway as the Watchguard's public IP Address.When I connect it remains "down" and I"m receiving errors saying it could not authenticate. I have the passphrase the same on both sides with 3DES and SHA1 configured.Does the WRVS4400n support this type of VPN configuration or am I wasting effort?
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Jan 31, 2012
I am preparing to move two branch offices from a point to point T1 connection to Century Link Metro Ethernet.Currently my branch locations connect to my HQ 7204 router via a channelized DS3. I have a 4507R at HQ that I will connect the ME circuit to.We will also be moving our Internet connection on the ME circuit.Our service provider Clink will hand me a single Ethernet handoff for the Internet and branch office connections. For the first phase I will connect one branch office using ME. Once that is in place and tested we will move another office and so on. Then our final step is to move our web connection to the ME circuit.Each branch office has their own unique voice and data subnet. They each have a 2801 router and a 3560 switch. The routers are MGCP gateways with only one PSTN connection, a POTs 911 line on a FXO port.
So my questions are;
1 - Should I connect the ME directly in to the 3560 at the branch offices or use the Fa0/1 on the 2801? Fa0/0 is currently connected to the 3560.
2 - On my 4507R at HQ how will I configure the ME switch port? As a dot1q trunk port?
3 - Given that ME is basically a LAN connection will I have to re IP the branch office? HQ is 10.10.1.x/24. Branch is 10.10.166.x/24 (data) 192.168.166.x/24 (voice).
4 - On the 4507R will I need to configure a vlan interface for each branch subnet?
I attached two network diagrams. One represents our current topology (MEexisting) and the second represents the new ME circuit changes (MEprojected).
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Jan 26, 2013
I have got two 1841 and one 881 cisco router. I can keep any one of this router at HO and remaining at branch office. I have got a static internet IP at HO but dynamic IP at branch office. I want to setup a VPN to connect to HO from branch office through router. The branch connects through a private IP for internet purpose. Which VPN is the most secure and best for this purpose.
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Jun 6, 2012
I have to setup what seems to be a very basic configuration, but it doesn't work. In our lab there is a cluster of switches with a 3550 that does all the routing for vlans. I need to simulate a sort of a small branch office that has one connection to the outside world (the lab network). [code] From the router I can ping any host on vlan 230 and other vlans,I can also ping the pc connected to e0/1.However from the PC I can only ping 192.168.1.1(e0/1) and 172.26.230.150 (e0/0) [code]
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May 18, 2012
I have been told to connect our branch offices over outdoor point-to-point wireless CPE. The wireless brand is Orthogon. The Main office got cisco 4507 L3 switch where all building switches terminate. DHCP,DNS and all application are hosted in main office. The branch office got ONE 24 port POE Switch cisco 2960 where all users will be connected, On Port 0/24 of 2960 switch at branch will terminate the outdoor Wireless and other end will be terminated on 4/15 of 4507 at main office? what command I need at both interface where Wireless is terminated.when we connect floor switches to 4507 we got these commands on access switches
vtp mode client
vtp version 2
vtp password cisco1
vtp domain LIC
Fiber termination port configuration - switchport mode trunk
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Aug 2, 2011
We have used two Cisco RVS4000 to create the IPSec VPN between the main office and the branch office. The main office has SBS 2008. There is a Windows Server 2008 as the domain controller in the branch office. One branch office user has a laptop which is not in the domain, but his exchange account is set up in the Outlook. When he connects the laptop to the branch office network, he cannot connect to the exchange server and get the emails. Is there any configuration to set up in the router, server or Outlook?
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Sep 7, 2011
What are my best options to secure branch office connection to HQ over Provider MPLS cloud. Our existing Setup
<<HeadQuarter>> :: DataCenter hosting Email, ERP, Intranet, Voice Services 10mb link to Service Provider over MPLS CloudMPLS is terminated on a 3825 Router running advance Services
<<BrancOffice>>::Total 10 In Country Branch Offices2mb Link to Service Provider over MPLS CloudTotal users in each branch : 20 MPLS is terminated on a 2811 Router running advance Services
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Mar 6, 2013
Our Headquarter (asa 5510) is running a site to site vpn connection with a Branch office (router 2811). All remote users are accesing the internet through the VPN and also accesing headquarter file servers.I want to know if there is a way for some remote users to be able to use the vpn for accesing the file servers but to access the internet through the branch office. The rest of the remote users will be still accessing the internet through VPN.
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Nov 2, 2012
I have HQ side with ASA 5520 (8.4) & Branch Side with ASA 5505 Design
VPN LAN<------->ASA5520(8.4)----->Thomson Business TG628s----->Internet<--->ADSL Modem------>ASA5505(8.2)
Now on both modems UDP 500 & TCP/UDP 4500 ports are enabled I can ping from internal LAN of HQ to internal LAN of branch but I cant ping from internal LAN of branch to internal LAN of HQ
HQ ASA 5520 Side
ASA Version 8.4(3)
host name aljoaib-fw01
[ code]....
Branch side ASA 5505
ASA Version 8.2(5)
host name GTC- DMM- FIREWALL
domain-name ALJOAIB.COM
enable password 7pgp93AEPfHtDc5N encrypted
[Code]....
Both sides have static ip address.
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Apr 17, 2012
I have 3 AIR-CAP3502I-E-K9 AP’s on my network now. Its connected directly to a cisco L3 switch now. and through a WAN link it communicates to a cisco 5505 WLC at remote head office (flexconnect).I want to install a low end WLC on my office, so that incase of the WLC fails at head office, still the clients on my end able to connect to the AP .So which of the following models are support for the AIR-CAP3502I-E-K9 APs ? and can that’s WLC talk with the other one at head office(WLC 5505) ?
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Jan 2, 2013
We have a ASA 5505 setup with VPN and using Cisco client 5.0. The VPN works without a problem if we use normal internet access (from home, motel, etc). However if we use a cellular wi-fi hotspot or tether a phone it will connect to the vpn but will not allow us to get on the office network
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Feb 8, 2011
My SIP trunk provider uses a SonicWall Pro 3060, I need to initiate a IPSec VPN tunnel from an ASA 5505 (ASA1) for SIP traffic to a PBX connected on ASA1's inside.ASA1 should also connect a VPN to ASA2, ASA2 has a fixed IP I have not been able to figure out how to initiate the tunnel from the ASA1 to the Sonicwall due to the dynamic IP.
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Aug 22, 2011
Trying to connect a 5505 with a dynamic address on 8.3(2) to a static IP'd asa (5510 on 8.2(1) with a DefaultL2LGroup and dynamic maps already created.
Inside networks:
Local (5505) 192.168.100.0 /24
Remote (5510) 10.100.1.0 /24
Configuration on 5505
isakmp policy 20 authentication pre-share isakmp policy 20 encryption 3des isakmp policy 20 hash md5 isakmp policy 20 group 2 isakmp policy 20 lifetime 3600 isakmp enable outside access-list 100 extended permit ip 192.168.100.0 255.255.255.0 10.100.1.0 255.255.255.0nat (inside,any) 0 access-list 100tunnel-group DefaultL2LGroup ipsec-attributes pre-shared-key *****crypto ipsec transform-set myset esp-3des esp-md5-hmac crypto dynamic-map cisco 1 set transform-set myset crypto map dyn-map 20 ipsec-isakmp dynamic cisco crypto map dyn-map interface outside
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Mar 2, 2012
I updated the configuration per your response below... It still doesn't work. See my new config files below.
make follow changes on host: officeasa
remove this line below highlighted.
crypto dynamic-map L2LMap 1 match address Crypto_L2L
It is only because group1 is weak, so please change it to group2
crypto dynamic-map L2LMap 1 set pfs group1
route outside 10.10.6.0 255.255.255.0 96.xxx.xxx.117
[code].....
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Apr 16, 2011
There are three different sites, two are composed of Multilayer switches cisco 3560 and 3570 as core switches (a 3560 in one site and a 3570 in another site), the last site doesn't have any routers just a 2950 switch. Each site has two asa 5505 as firewalls. Two Internet connexions are connected to every site, one on every firewall. One Internet line is used to connect the different sites together using VPN crypted with IPsec and the other line is just for Internet access. The line that is used to interconnect sites contains voice and data traffic.At the moment all the routes are static routes, the network isn't too big for now and counts not more than 20 subnets.But it is evolving, and I want to use dynamic routing, EIGRP to be more accurate. I've looked into it and I'm not sure how to make it work. The VPNs active on the ASAs don't support dynamic routing, so I thought about GRE tunnels but the ASAs don't seem to allow it either.
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Feb 18, 2013
How to get DynDNS or some other public dynamic DNS services on the Internet working on ASA 5505?
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Apr 17, 2011
I'm having some issues configuring NAT statements on my ASA5505 which has recently been upgraded to 8.41.
I have a single dynamic IP on the outside interface of the ASA and would like all internal hosts to NAT/PAT to it. In addition, I would like to have several ports 'forwarded' to internal hosts, one of which is TCP/4343. With the current configuration all hosts are NATing to the external interface properly but the service running on TCP/4343 is not accessible from the outside. See command output below:
"sh run object" output:
object network DrJones host 10.81.220.90object network LAN-10.81.220.0 subnet 10.81.220.0 255.255.255.0
"sh run nat" output:
object network DrJones nat (inside,outside) static interface service tcp 4343 4343object network LAN-10.81.220.0 nat (inside,outside) dynamic interface
"sh run access-list" output:
access-list inside_access_in extended permit ip 10.81.220.0 255.255.255.0 anyaccess-list outside_access_in extended permit icmp any any echo-replyaccess-list outside_access_in extended permit tcp any interface outside eq 4343
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May 21, 2011
I wanted to move to the cisco arena, and having a bugger of a time figuring out simple nat/pat rules combined with access lists. I've been reading Richard Deal's Cisco ASA configuration book, googling the heck out of this simple problem and can't see what I'm missing.
I have an ASA 5505 unlimited security plus license running 8.2(3) and a simple network, 192.168.0.x internal, 192.168.3.x dmz (not even touching that yet!) and outside I have a /29 subnet of addresses, 25 is the gateway, and 26-30 are my addresses.
I have simple dynamic nat set up on the .26 address to nat to 192.168.0.x. All I'm trying to do is port forward a simple tcp port I set for my linux server (192.168.0.2) on the inside, for arguement's sake, it's 2222 (it's not really). My outside vlan 50 is X.X.X.226 255.255.255.248 , can I make a static nat (inside,outside) x.x.x.226 192.168.0.2 netmask 255.255.255.255 ?
I tried using (inside,outside) x.x.x.230 192.168.0.2 netmask 255.255.255.255 and that didn't work either. Is it not possible to use two external addresses to hit the entire /24 range AND a single server?
My access rule for this nat is permit tcp any 192.168.0.2 eq 2222 (where I'm using 2222 for my ssh port). then I apply that access list to the access group interface "outside".
I thought the outside interface would do a proxy arp (since I do not have the sysopt noproxyarp command) for my 227,228,229, and 230 addresses where .226 is my internal nat for all my internal machines i.e. 192.168.0.1 -> x.x.x.226 . I had this working like a charm before with my fortinet, so I know I have systems listening.
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Nov 21, 2012
I'm working on setting up a template configuration for the Cisco ASA 5505 device that we'll use to configure more routers for various client needs. One of the requirements requested of me is the following: Internal hosts assigned a DHCP address are blocked from the internet Internal hosts with a static IP are permitted access to internet All internal hosts can communicate regardless of state
Now, I'm fairly new to this and I'm certain my terminology isn't correct so googling the problem has been fruitless. I have followed basic configuration guides and have configured the device to hand out DHCP addresses to hosts plugged in ports 1-7. If I'm plugged in and specify my address manually in the OS I am blocked from any access so I can only assume there is an access policy or some rule preventing me from authenticating against the router despite having set up VLAN1 to be the entire class C subnet. What sort of steps would I need to do to configure this? New access lists. For the record, the dhcp addresses are in the range of 10.100.31.64-10.100.31.95. VPN users are assigned an address from 10.100.31.220-10.100.31.240 and there seems to be no issues with that configuraiton. I don't wish to constrain what addresses a user can use should they specify a static IP (10.100.31.5 should be just as valid as 10.100.31.100).
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Sep 6, 2011
I have an ASA5505 running which is on a static IP. I have just got an SRP527W for a remote worker and want to create a site-to-site VPN into the ASA. I have a number of other router of non-cisco brand which just all dial-in and connect no problem.
On other routers I have been abloe to specify the DDNS hostname in the VPN setup so that the ASA can identify it. I'm not sure how I setup the SRP527 to connect to the ASA.
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Nov 7, 2012
I have some sites already connected with ASA 5505 site to site VPN with both end static IP. Normally, all traffic can come across without any problem. Even I used "management-access inside" for both ASA.Now I have a new office with only ADSL pppoe connection. I used easy VPN to connect from Site B:remote dynamic IP site to SiteA:static IP with similar example of this: [URL]
All my 5505 ASA are running 8.4(4)1
Site A - Static IP
Site B - dynamic IP with pppoe connection.
After EasyVPN connected, i do not know how do I remote manangment from site A lan to site B 5505 ASA?
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Nov 10, 2011
I have an ASA 5510 configured with two L2L VPNs from the headquarter to two different branches.I m using the ASA “outside” interface which is connected to the internet in order to establish and configure the 2 VPN connections. Branch 1 could communicate with branch 2 through the ASA?
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Apr 6, 2011
Win Xp ip is 192.168.0.41 one system & wix xp ip is 192.168.1.100 how can i connect to network
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Mar 14, 2013
we installed two weeks ago a 867VAE-K9 as a border router for a medical practice.It's got two vlan interfaces for inter-vlan routing, only one Gi interface up in trunk mode to the core switch and the ATM for ADSL2+ connection to the local ISP. A cisco wap is on the secon vlan for the patients. There is a voip pbx on a linux machine that registers 5 trunks to an external provider (only one trunk is used right now, and it works fine).(Almost) everything works fine :-) Sometimes (it can be hours or days) the routing to the internet stops. The meds can still use the LAN accessing everything in it with no lag, and the patients can access the isolated SSID on a Cisco wap on the second vlan. They simply cannot surf the internet.
- DNS and local routing is fine
- the router is reachable through the Gi interface
- they can send and receive traffic to and from the 867 vlans' IPs
- the ATM, dialer 0 and virtual access are up, line protocol up
- the dialer has got the IP address negotiated from the ISP
- default route is negotiated through ipcp
- the controller vdsl 0 is in showtime! state
- from the outside we can ping the PPP peer, but not the IP of dialer 0
The only thing is the queue counter of ATM which shows drops and total output drops. Attenuation is fine, noise margin not so well. The point is that outside traffic to the internet is at low levels and the routing almost always stopped when no one was using the internet (i.e. out of office hours). It already happened 7 times in 16 days. The problem obviously is that voice traffic is impaired by the stuck router, and no med there is able to ssh into the router and re-activate the atm 0 with a shut/no shut.
It is not necessary to reload. A fast shut/no shut of the atm0 (no wait between the commands) will make it running again.We're activating the smarnet for this router to update dsl fw and ios image, but I thought I could post here before that.[code] As a brutal workaround till the update/fix, I was thinking about monitoring the reachability of some external systems and use snmp from the lan to shutdown/no shutdown the atm (though I don't even know if that would be possible from snmp on this router).
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Oct 15, 2011
I have VPN connections in between my HO and branch locations. I am using ASA in HO and 1841 branch locations. One of the location is keep on disconnecting, why this is happening as i can see the configurations are identical to other locations.In 'sh crypto isakmp sa' output i can see multiple entries for this particular location, one with type 'L2L' and others with type 'user'.
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Jun 25, 2012
We have had a successful site to site vpn working for several months now. It is an ASA 5510 at HQ to a ASA 5505 at a branch office in another state. We just added a second site to site vpn in another state this time from HQ to a Sonicwall TZ100. After plugging in the Sonicwall to the Qwest modem in bridge mode the tunnel came right up. I was unable to to ping any off the private IPs at HQ from the new branch, but was able to use remote desktop into the servers and workstations at HQ. Also all the computers show up when browsing the network from the new branch.
At the first branch we are able to ping both ways and use remote desktop both ways.When using packet tracer in ASDM on the HQ ASA and pinging from one of the IPs in the HQ protected network to an IP in the new branch network NAT-EXEMPT looks good, but when it hits the first NAT it matches on the "dynamic translation to pool 10 (10.1.255.254) [Interface PAT]" (which is the default route for all the vlans to get to the Internet.)The next NAT (subtype - host-limits) looks better and this one going to the IP address of the outside interface of the HQ ASA 5510, but then the third NAT (Subtype - rpf-check) reverts back to the "10 (10.1.255.254) Interface PAT]" and the packet is DROPPED. Also there is no VPN step in Packet Tracer after NAT.[code]
Is the problem possibly due to the fact that my 2 new ACLs for "encrypt_acl-30" fall after "access-list global_mpc extended permit tcp any any" in the config and it is running into the implicit deny all?
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Apr 16, 2011
I have 3 Cisco Routers as following :G.SHDSL Router : Cisco 3845 withISDN and Branch Router : Cisco 2811.How My Network works :Branch Router has two type of connection ( First one : G.SHDSL link work as Main link and the other one ISDN Link work as Backup link )when main link goes down the ISDN link goes up ...( Note : i applied IP SLA with tracking ) ...
My Problem :i want to delete default route from ( G.SHDSL Router )0.0.0.0 0.0.0.0 dialer 3..My network works properly with these configuration but when i delete the default route 0.0.0.0 0.0.0.0 dailer3 , my network goes down ( Failover technique not works)
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Apr 17, 2013
We installed a new ASA 5515 about a month ago for the corporate office we also have 40 branch locations that feedback VOIP, camera, and Citrix to the corp location. Each of the branch locations have a separate DSL connection with a local provider and all of them are dynamic IP addresses.
The problem I have is that I cannot figure out a access rule to make the voip traffic work 100% of the time what ends up happening is five or six random locations change IP address's every day and I could not figure out how to create a access rule for that so I create a static route with that dynamic IP and then it will change a week or so later. That's a horrible security risk and a lot of manual work.
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