Cisco Firewall :: 1841 / IOS Firewall Keeps Stopping Mobile Apps?

Nov 11, 2012

The other day I set up a firewall on my Cisco 1841 router, it all seems to work fine except for a few small problems.  2 wireless devices an iPhone and an Android tablet are having some problems with 1 or 2 apps.  iPhone 6.0.1 Facebook app and the App store will not load Android tablet ICS BBC iPlayer and Google play app store wont load or play content.  Both devices with their issue were working fine until the new firewall was installed.  I’ve tried opening ports and adding ACLs but nothing seems to work.  I’ve included my start up config.  All other PCs, laptops, smartphones and iPads work fine. 
 
Building configuration... 
 
Current configuration : 5551 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!

[code].....

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Cisco Firewall :: 1814 - IOS Firewall Keeps Stopping Mobile Apps

Nov 26, 2012

The other day I set up a firewall on my Cisco 1841 router, it all seems to work fine except for a few small problems.  2 wireless devices an iPhone and an Android tablet are having some problems with 1 or 2 apps. iPhone 6.0.1Facebook app and the App store will not load Android tablet ICS BBC iPlayer and Google play app store wont load or play content. Both devices with their issue were working fine until the new firewall was installed.  I’ve tried opening ports and adding ACLs but nothing seems to work.  I’ve included my start up config. All other PCs, laptops, smartphones and iPads work fine.

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Cisco Firewall :: ASA5510 ESMTP Inspection Stopping Outbound Mail

Jun 13, 2011

I am having an issue with an ASA 5510, running 8.4(1) code, causing outbound mail to remain in the SMTP server queue (Exchange 2007). This only happens with some remote mail servers. The connection usually ends with the remote server eventually sending a TCP reset.
 
I've taken multiple inside and outside packet traces.Other trace's contain either X's preceding various sections of the stream content or all X's in the content. The X's only appear when inspection is enabled.
 
Disabling inspection is the only thing that seems to allow mail to flow. I find this curious because I'm running this same ESMTP policy on other ASA's. However, they are on 8.3 code.
 
Most everything I find when searching on this subject says to disable ESMTP inspection. [code]

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Linksys Wireless Router :: EA3500 / Facebook On Mobile Devices With Android OS Using Both Apps And Browser?

Jun 4, 2012

Recently purchased the EA3500 router.  Everything seems to work great except for Facebook on mobile devices with Android OS using both apps and browser.  I can access FB using a laptop's browser. 

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Cisco Firewall :: 1841 - Which IOS Support Zone Based Firewall

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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Cisco Firewall :: 1841 / How To Deploy ISO Firewall Feature

Feb 13, 2012

What is the best way to deploy the IOS firewall feature?I have a Cisco 1841 router running 12.4. 

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Cisco Firewall :: 5520 AnyConnect Mobile Not Handling Certificates Correctly

Oct 31, 2012

I have an SSL VPN set up on my ASA 5520 with a self signed cert. When I run the AnyConnect install on my desktop machine I have click through a few windows to accept the certificate. When I connect through the mobile client on Android, the connection goes right through without a prompt to import/choose/download a certificate. I'm able to connect but I'm wondering if the phone has actually recieved a certificate. I'm in the 'Advanced Connection Editor' screen and the certificate setting says "Automatic".

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Cisco WAN :: 1841 BPR With Router And Firewall

Oct 20, 2012

In my company, we have two Internet connections, one for VPN and the other for emails and browsing. I have Cisco 1841 router with dual ADSL links, and also it's conntected to ASA and the other PIX. through one physical interface (vlan 1and vlan 2). The PIX firewall is connected to users, and the ASA is for VPN only.How can I seperate the traffic is going for emails and browsing and the vpn traffic. I have got to the point, that the router is configured for both ADSL connections, and I also configured the access-list and route-map in the router, the thing is when both ADSL configured together none of them works.

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Cisco WAN :: 1841 Connection Between ISP And Firewall

Apr 2, 2012

I have a Cisco 1841 serving as a connection between my ISP and my Firewall (non Cisco).
 
I seem to be having performance issues with my traffic going through the Router.HTTP (web browsing) is fine andI get my download rate as I would expect for a 10mbps connection.But anything to do with my VPNs I find a delay when sending via the 1841.(all my VPNs are managed by my Firewall and I have never had problems with those).
 
I also have a legacy ADSL connection to my firewall, which bypasses the 1841 and I am having no issues on that at all.If anything it is quicker! Which is madness as my Fibre should out-perform it easily.This leads me to believe the issue is not with the Firewall.
 
My 1841 is very simply setup, 2 fa interfaces with simply a default gateway setup within it.Which leads me to ask if I need more static routes in or a dynamic route protocol setup?

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Cisco Firewall :: 1841 NAT Out One Interface But Not Other With IOS?

Feb 27, 2012

I am trying to figure out how to use a Cisco 1841 IOS router to take traffic from one interface and source NAT it out towards the Internet on one interface and at the same time NOT perform NAT when sending the traffic towards a different routed interface. 
 
Here the RemoteSite has connectivity back to the MainCampus, but there is no need to NAT traffic from the one site to the other.   They share the same umbrella of address space.   However, the RemoteSite needs to have its Internet-bound traffic NAT'ed out to the Public Internet via a third interface.  I know that I could just NAT everything out from the Remote Site and map the traffic back onto the same address space for intra-campus communication, but I'd rather avoid that and just NAT where I need to NAT it to the Internet.
 
I do have a caveat here:   in the event that either the MainCampus or the Public Internet interfaces go down, I would like to failover traffic from the downed link to other good link.  For example, I want to NAT all traffic (including "intra-campus" traffic) out via the Public Internet if the direct link to the MainCampus is down.  For the other example, if the Public Internet direct link is down, I would just send out all traffic without NAT towards the MainCampus.

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Cisco :: Configure 1841 Router And Firewall?

Feb 11, 2013

Configuring Cisco 1841 router and firewall.My provider has put their equipment and given me 2 subnets with public ip address. I am used to getting just one Subnet and connecting my firewall straight to the hand off. But in this case I am a bit confused. I assume I will need to put a router and configure it with before I connect my firewall. [code] I also have a firewall that I would like to be on the subnet 2 at 200.xxx.97.130 and have my private network 192.168.xxx.xxx behind it.

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Cisco Firewall :: Internet Is Not Working Behind 1841?

Apr 6, 2011

I have configured a Cisco router. I am able to ping google from rotuer. I can ping my local IP from router and router local IP to my machine. But I can not access internet on machine. I can not ping google and any other IP out of network.

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Cisco WAN :: 1841 ADSL Configuration With VPN Firewall?

Nov 27, 2011

I have a Cisco 1841 router with an HWIC-ADSL module installed. My ADSL connection is PPPoA with a dialer interface and I have been provided 6 ip's from my provider to use on this service. Previously I have connected Fa0/0 on the 1841 straight onto my network and used NAT and ACL's on the 1841, I would now like to change this and have Fa0/0 connected to a Palo Alto firewall and use the Palo Alto to provide NAT, Firewall & site to site VPN functions. What config would I require on the 1841 to allow me to use one of my ISP IP addresses on the Palo Alto to allow it to be a VPN endpoint? Do I need to configure the 1841 in bridge mode?

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Cisco Firewall :: 1841 To Hold Public IP Addresses Behind ASA

Apr 21, 2013

I am trying to figure out how this works. I have an ISP device that connects to my 1841. ISP and fa0/0 hold the /30 WAN addresses. Fa0/1 hold one of the public IPs, lets say 1.1.1.1/29. Then the outside interface of the ASA holds 1.1.1.2/29. Now I have two routes in the 1841, one for default route going back to the ISP device, and a route for the 1.1.1.0/29 network going to the ASA.Now I have 4 more publics I can use 1.1.1.3 - 6. I do not want to assign these IPs to the servers, but yet just NAT them. I know this is possible, but cant figureI took an internal host and did a one to one static NAT from private to public. Packet tracer says my NAT rules are ok. Allowed all IP traffic for testing and still can't ping the server.

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Cisco Firewall :: 1841 / Failover Between Leased Line And VPN

Jul 15, 2011

I am going to design one network. I had queries with this design.Let me explain scenario first( it was attached below).I have two sites, Site-A and Site-B, repectively.

In site-A i have one Cisco 1841 router, one Cisco ASA 5510 firewall and One cisco 3560 layer 3 switch.
in site-B i have one Cisco 1841 router, one Cisco ASA 5505 firewall and One Cisco 3560 layer 3 switch.

From ISP side

I have point-to-point leased line between sites A and B. And both sites have internet connectivity from another ISP.

I planned to terminate leased line in cisco 1841 router in both branches for branch to branch connectivity.

I will configure site to site VPN between two sites, A and B.

Here my query was i want make VPN as failover connectivity if leased line fails. In both the cases, i need internet to the inside users in both sides.

Summary requirement:Leased line is Primary and VPN is Back-up, if leased line fails. In both cases internet is needed to inside users.

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Cisco WAN :: 1841 Router Can't Resolve DNS After Enable IOS Firewall

May 9, 2013

my 1841 router can't resolve dns after enable ios firewall, I try to ping google.com from router's console fail, but dns resolution is fine from lan side.
 
my partial config---------------------------------
!
ip name-server 8.8.8.8

[Code].....

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Cisco Firewall :: 871 / 2811 / 1841 - ZBFW Default Inspection Specification

May 6, 2011

I can't find any specific information on the implementation of packet inspection in a zone based policy firewall.  In other words, is there a specification or even just a set of values that define the default inspection parameters for all protocols?  With DPI I can manage 'some' of the inspection capabilities but I have some fairly rigorous and specific requirements to meet and I need to validate that the IOS ZBFW will meet those requirements.  Specifically, I'm interested in HTTP, DNS, and ICMP but all other protocols would be useful as well.I'm working with basic routers; 871's, 2811's, 1841's, etc.  The IOS in use in most cases is adventerprisek9-mz.151-3.T.

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Cisco Firewall :: 1841 / Can't Access Public IP Of LAN2 From Host On LAN1

Dec 11, 2012

i am using a Cisco 1841 with subinterfaces instead (NAT on a stick).From the internet i can access services on public IP being hosted in LAN2. But when i try to access the same services on the same public IPs but sitting on LAN1, it does not work.

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May 26, 2013

We have a setup of a firewall in between my Cisco 1841 router and Switch.
 
Cisco Router --> Meraki Firewall--> Switch
 
Client VPN is configured on the Meraki Firewall but then for the outside users to client vpn in to the network, I have to port forward or open the ports 500 and 4500 to the IP address of the Meraki Firewall 192.168.1.90. [code]

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Cisco Firewall :: 1841 - Can't Access Public IP Of LAN2 From Host On LAN1

Dec 11, 2012

i am using a Cisco 1841 with subinterfaces instead (NAT on a stick).From the internet i can access services on public IP being hosted in LAN2. But when i try to access the same services on the same public IPs but sitting on LAN1, it does not work.

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Cisco VPN :: 1841 / VPN Site-to-site With Zone Based Firewall

Jan 28, 2013

The problem I am having is very strange and I have tried to upgrade the IOS on the 1841 to solve the problem but no luck.  The issue is when I enable Zone Based firewall security on of the 1841 routers two VPN site-to-site tunnels stops working.  If I turn off CEF (no ip cef) then the traffic for both tunnels works.  Someone told me that the Zone Based firewall must have a match for the VPN traffic and I created that with ACL 160 and 161 but it did not solve the problem.
 
Current IOS is below.
 
Cisco IOS Software, 1841 Software (C1841-ADVSECURITYK9-M), Version 15.0(1)M9, RELEASE SOFTWARE (fc1)
Technical Support: [URL]
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Tue 11-Sep-12 23:58 by prod_rel_team

[code]....

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Cisco VPN :: L2L With ASA And C2900 Always Stopping To Ping Each Other

Feb 23, 2012

We have a vpn L2L with an ASA and C2900 and always stopping to ping each other but the vpn still UP and can each the others devices behind the peers.
 
Everytime we have to issue on router "clear cry isa peer" or on asa "clear ipsec peer" to start to ping each other but after seconds it's stopping to ping again.Is there something to fix it permanently? We did some debug crypto on asa but no information was logged.

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Cisco AAA/Identity/Nac :: Stopping Update In ACS 5.1

Mar 15, 2011

I tried to update my ACS 5.1 appliance. I applied patch 5.1.0.44.3 and made an big mistake: I booted the server due to the fact that it was not reachable after one hour after appplying the patch. Now the server shows following message, when I try to apply other patches: Can not process requested software update operation since this ACS Instance currently has a software update inprogress.
 
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Oct 3, 2012

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Internet Connection Frequently Stopping

Jul 22, 2011

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Downloads Starting And Stopping Constantly?

Aug 6, 2012

First, I'm running Windows7 64 bit. So whenever I download a decently sized file; my download will start and get good speed for a few minutes, then it will drop off and stop and my connection to the internet will be lost for a short time while the connection resets. This happens if I'm using a program like Steam to download a game, torrenting something, sometimes on my Xbox 360 when it needs to update itself or a game, occasionally on a large app or album off of iTunes or patching an online game. However, I have no issue watching YouTube videos or playing an online game while also having TeamSpeak running in the backround to chat. I don't lose connection when browsing the internet at all and recently I was able to stream a live event without issue but I only tried that once (I don't have Netflix or anything similar).It usally isn't a big issue because my download will pick up where it left off most of the time but its a pain in the butt to have to add on an extra hour to a download sometimes for this.

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Downloading Stopping Others From Accessing The Internet?

Apr 25, 2012

I haven't been able to get a decent answer to no matter how much googling etc I do. We have a problem in our flat where any time someone downloads something everyone else in the flat loses access to the internet until that person finishes their download or stops it. We are all accessing the internet through the same router, 3 of us wirelessly and 1 wired. The computers which are for some reason blocked by the other person downloading can't even access the router to do a reset or work out whats happening. [URL] gives our download speed as 14.80Mbps which isn't great but okay for good old NZ.Why would it be that 1 person downloading is preventing the others from accessing the net, do some downloads somehow take full control of all the available bandwidth ?.And is there any way to make it so that it doesn't happen, like make it so no computer can use all the bandwidth at a time ?, ie my flatmate can download his whatever but I can still send emails etc at the same time.

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Jan 1, 2013

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Jun 16, 2011

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DIR-655 - Slow Internet Speed After Stopping The Data Download?

Jan 16, 2013

I am experiencing strange problem about slowing down the internet speed after downloading is stopped in between. I then have reboot the desktop to regain the speed.

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DSL Modem
Dlink DIR-655 Router
Desktop A (Wired Network)
Desktop B (Wired Network)
Laptop (Wireless Network)

If I am downloading a file (1gb) on Desktop A and for some reason I have to stop it, then internet connection is desktop A , desktop B and laptop is almost killed. To get the speed back, I need to reboot Desktop A. All computers are on Windows 7.

If completely download the file, the internet speed is good on all the computers. Before downloading the speed is: After stopping the download the speed is :

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Feb 26, 2013

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Feb 25, 2013

I have a RV082 router that is currently in prod. I have a  Dell Powerconnect 5424 switch that I'd like to use in place of the  unmanaged switches I am currently using.
 
I have the switch  configured with it's IP, subnet, gateway, etc. I can plug devices into  it and communicate with no problems. However, when I attempt to plug in  the router, nothign will communicate to or from the switch. The devices I  plugged in will not talk to each outer, ping the switch, or the router.  Also cannot ping to the switch from a device plugged into the router. If I unplug the router, comm opens back up.

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Aug 9, 2011

I need to change providers from Verizon to AT&T.  This modem came with the AT&T Sim card installed in my notebook.  The software (Dell Mobile Broadband Utility Help) says " Choose Network Selection from the Settings Menu. Select AT&T and click Load."  Unfortunately, Network selection is not an option.

How do I do it?  This modem is compatible with Verizon, AT&T and Sprint networks. 

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