Cisco WAN :: Second LAN Card On Models 1841 / 1941
Dec 18, 2011
When two Routers Models 1941 (Main Router) and 1841 work connected with HSRP, and a second LAN card is added to each one of them If i connect the GE 0/1 and Fe 0/1 of each of one of them To FireWall1 (in cluster with FireWall2) AND i connect the second LAN (Added) of each one To FireWall2 (in cluster with FireWall1) If FireWall1 will failure , How can Router 1941 know, to move traffic from GE 0/1 to the second LAN card connected to FireWall2 (which is in charge now, by cluster definition)
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Oct 4, 2011
In the past Ive always used the 1841 router to run these smaller sites.10-20Mbps/ using 1941 with OSPF and using both ethernet interfaces?
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Jul 2, 2012
I decided recently to switch out our border router (1841 12.4 advsecurity) with a shiny new 1941 (15.2 SEC/K9) as the CPU upgrade was needed.The core below acts as a VPN end point to various other remote offices we have, all of which have a similar network design at each end (and all entirely managed by me). All of these are still running 1841's with 12.4 advsecurity on them as well. These are all GRE tunnels with ipsec procection on them (not crypto maps). [code]
Everything else works fine (NAT, route-maps etc), it's just these IPSEC/isakmp tunnels that are not playing ballIt's definitely not an ARP issue (all arps were cleared) and ICMP appears to work fine (ie, I can ping the remote tunnel's public IP endpoint from the core using the loopback for that tunnel as the source). I am suspecting it's something strange with the stateful firewall config, but I did try and apply ipsec and isakmp-msft to the ip inspect list, with no success.
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Apr 4, 2013
Recently my company buy a EHWIC4ESG card and put into the cisco 1941. The reason we buy this card is because the in built two network ports of cisco 1941 are being used up. g0/1 is being connected to the internet and g0/0 is being connected to the office switch (192.168.5.x)
We have two servers (192.168.6.x and 158.55.33.x) that required to be connected to this router 1941 where the router will be configured as VPN for external user to access this server.
The EHWIC4ESG card is put into the router 1941 and after typing the "running-config" command, i could see it create a vlan 1 interface and
interface GigabitEthernet0/1/0
interface GigabitEthernet0/1/1
interface GigabitEthernet0/1/2
interface GigabitEthernet0/1/3
[Code]...
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Aug 19, 2012
I've been given an 1841 with a 3G HWIC card installed to test with. I need to set up some sort of VPN to our ASA, the problem is though these 3G cards get a random public IP, so what options do I have to create a VPN tunnel from this router to the ASA without the 1841 getting a static public IP?
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Dec 26, 2011
I have 3725 router with internal CF and external slot for CF. I tried upgrading and ended up deleting the iOS version on the internal flash, and can not now put the iOS back!! I turned it off.... so there was no active iOS..
I have tried formatting the CF card on an 1841 but the 3725 won't read it. It is obviously stuck at ROMMON
What is the correct way to format a CF card so my 3725 will read it and I can get an iOS back on it!!
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Jul 13, 2011
I recently installed a WIC 1DSU-T1-V2 card into a 1841 router to add to a multilink bundle. I inserted it in Slot 1 and powered up the router and there was a new serial interface showing in the config automatically as s0/1/0. I was able to get it setup with ppp multilink and added to the multilink group. The problem is I need to do a sh controller or sh service-module to see if there are errors happening (I'm using this card as a replacement for an interface that was giving errors with this line before). I can do a sh s0/1/0 and that works but I can't see deeper. I found it odd that the serial port just appeared in the config when I booted without having to do anything, if this is correct behavior and how I see the Controller or CSU info for troubleshooting?
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Jun 13, 2011
VWIC2-1MFT-T1/E1 card support on 1841 Router ?any ios up-gradation required?
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Jun 5, 2011
my office is looking in ordering a HWIC-1FE to supply our cisco 1841 router with a second ISP connection. i wanted to find out if this card support load balancing and fail over? not sure if fail over is the right terminology so ill explain, i need it so that if one ISP connection goes down (as it does often) it fails over to the second ISP.
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Jun 2, 2012
why I can't use cisco ehwic-3g-hspa-u card in cisco 2800 series and 1841 series router?documentation said that it should work with that devices but when I installed it, it doesn't work even as device i can't see I am using cisco latest ios advance ent. 15.1(4)M4?
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May 9, 2012
i have a 1841 cisco router and i recently purchased a 1 port HWIC wan interface card. My problem is that I cannot see the interface in my config file. Is there something i am missing?
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Mar 10, 2013
I am intetested in Cisco 2960 ttl models, but need to justify my choice over other brands.What are the equivalent models from netgear, Dlink and HP.
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Nov 6, 2011
We are considering order the AP541N for our network. A few questions...
1). Are there multiple models of the AP541N? or just one cisco part number?
2). I am assuming the basic antenna comes with it. If this is something that I need to buy seperate.
3). Are there part numbers for the POE injector? Need to know part numbers on the AP541N and the poe injectors?
4). We would buy a couple of these and run them in cluster mode. My understanding is that I won't need a controller. Do I need to buy a certain model to use the clustering or is that available on all the AP541N?
5). Can I have this talk to active directory to authenticate users? Is that tough to do? Do I need install some kind of agent on a domain controller? I have configured the ASA to use Active Directory for authentications. Should it be any more difficult that that?
I have setup a few other Cisco APs before and am generally familair with wireless. But, I am not a "wireless expert" and don't have any experience with this particular product.
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Mar 4, 2013
We are looking at doing some switch replacement. These switches will be in for ~7 years.We need POE for a VOIP phone system, and 10gb uplinks back to the core. We want to have the ability to go POE+ in the future.
We were quoted from our vendor for:WS-C3850-48P-S with 2x715w Power supplies. It looks like the data sheet says that to get POE+ you need 2x1100w or 1x1100w & 1x715w. Do we need to step up to the WS-C3850-48PF-S?
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Mar 13, 2013
(eth ports routing only) and a layer 2 switch into a cluster of two layer 3 switch clustered. I have looked at Cisco 3550 EMIs with HSRP but I would like to implement based on newer models of Cisco switches.
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Sep 24, 2012
We have acquired few AIR-BR1410A-A-K9 AP's that are for US only. I am in Pakistan. For our market, Cisco proposed AIR-BR1410A-E-K9. This is fine as it is listed on their website as well.However, since we also have the "A" model and now the "E" model, can we place an A model on one end and an E model on the other and make them communicate with each other?
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Jul 10, 2012
I am planning to build a site to site vpn tunnel, connecting 2-3 satellite office to the main office.After searching the product, I really don't understand the difference between models like the ASA5505 and RV042.Can I need to use ASA5505 in the main office while RV042 in the stallite offices? Or can I use RV042 (or upper) in all the office and it is enough for vpn tunnel?If it is the case, what is the benefit of ASA series over the RV series?
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May 25, 2012
are there any AP models which support 5500 series and dont support 4400 series. Actually we are looking to get some new AP with higher bandwidth and External Antenna How to differentiate between AP models with clean air feature supported and not
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May 31, 2011
ACE 4710 deployment model. We'll be doing an eval later in the year, but I'm just looking to understand the architecture.We have a stack of 3750 switches with a single VLAN (10.1.1.0/24). Connected to that stack is a pair of web servers (10.1.1.5 and 6) that we want to provide load balancing/failover for. Some of the clients are located right there on that same VLAN. Other clients may be coming from other spots in the infrastructure.It sounds like I could put a pair of 4710s connected to that stack of switches, in a single arm deployment? And then the virtual IP and the real servers would all be 10.1.1.0/24. Maybe use an etherchanel to connect each 4710 to two 3750s?
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Feb 14, 2012
I have one AP541N and need to extend the wireless network with a second wireless AP. Which models of AP can I use with the AP541N to achieve a 'cluster', please? Is it just with a second AP541N or can I use other Cisco APs to achieve the cluster?
Am I correct in thinking that doing this will allow wireless clients to 'roam' seamlessly between the two APs?
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Jun 23, 2012
I want to be sure for this before ordering: is the Enterprise-class stackable switches "WS-C3750X-48T-S" model can be stackable with "WS-C3750G-48TS" model.
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Mar 7, 2013
I am trying to decipher the differences between the two models of the 1921 router. One has an IP Base IOS and the other has a Security IOS. I have an ASA so I don't think I need all the Security IOS bells and whistles on an internal router. Although, does the IP Base IOS allow for trunking and sub interfaces? I definitely need that and on CDW's website it says that the 1921-Sec/K9 w/ Security IOS includes 802.1Q and that spec is not listed on the 1921/K9 IP Base IOS model.
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Jun 1, 2011
I am able to view clients, rogue APs, rogue clients etc, but the information is faily inaccurate. Thus, I am trying to calibrate using the RF calibration models. I have created a new model and am attempting to add data points.After adding the client MAC, selecting the floor plan and clicking next, the floor plan loads and a message pops up stating: "Could not enable S60 across all relevant controllers on this floor". I click OK, and select "point" as the calibration method. When I place the calibration point on the map and click GO I am presented with the following message: "Failed to initiate data collection. Please make sure your client is connected on the wireless network and then try again." Both of these messages can be seen in the attached screenshots.
I have confirmed that the client is associated to an AP located on the map.I have confirmed connectivity of the client.I have used both the Cisco AIR-CB21AG-W-K9 (CCX V5) and the integrated intel wireless card (CCX V4).I am running WCS 7.0.172.0, MSE 7.0.201.204, and WLC 7.0.116.0.
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Jan 3, 2011
I'm adding some additional AP's (3502s) to an environment that is all 1131AG AP's. The DHCP is configured for DHCP option 43 for remote sites for layer 3 discovery. Since only one AP mode can use option 43, I've added a DNS entry for cisco-lwapp-controller in my local domain.My assumption here is that the new 3502's will be able to use DNS for discovery, while any additional 1131AG would continue to use DHCP option 43. will this work in a mixed environment?The new AP briefly showed up on my controller, but then disappeared. The LED is cycling red, green, off - indicating it is still in the discovery process. Could I effectively remove the option 43 in DHCP and have all AP's use DNS? Is this as reliable as option 43? What is the best practice for discovery?
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Mar 31, 2013
Region : Argentina
Model : TL-WDR4900
Hardware Version : V1
I am about to buy one of these two models tl-wdr7500 and tl-wdr4900 that look exactely the same and I am trying to figure out what is the difference between them?
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Apr 20, 2012
I think I am having problem with my network card I am running windows 7 with Dell wireless 1390 WLAN Mini-Card lots of times the signal is low and I get the error message no internet connectivity or some other error message that I am not being able to connect to the network provided by my wimax modem, Is there any program that I can download to test if there are any errors related to the network card or any way to fix this?
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Feb 22, 2012
I have a Cisco 1941 which has several Cisco VPN clients connecting to it which all works fine. The details of the LAN and VPN clients are as below:
Cisco 1941 LAN : 172.16.1.0 255.255.255.0
VPN Clients : 192.168.5.0 255.255.255.0
As mentioned this works fine but I'm about to setup a point to point VPN with from the above Cisco to another site which isn't controlled by myself and the remote side of this point to point VPN will only allow connections from the "172.16.1.0" subnet to communicate with it.
The issue I have is that the Cisco VPN clients also need to communicate with the remote side of this point to point VPN but they are obviously coming from the "192.168.5.0" subnet. Is this possible and where to start with this that would be fantastic.
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Feb 18, 2011
I got 2 DC Cisco MWR 1941 and 3600, I do not know the reason why when I set up IP NAT to 1941 does not work but if I do it in the 3600 if it works.
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Sep 5, 2012
I have a problem with my routers (cisco 1941)I'm running a DMVPN network (Hub and spoke)All the hubs are connected to the 2 hubs. With 4 tunnels. (each hub has 2 interfaces to the spokes. the spokes only have one interface to the hubs, so I splitted them and so I now have 4 dmvpn tunnels). one of the interfaces on a hub malfuntioned and because of that the customers had problems with logging in and sending packets. I made this kind of structure because of when one of the tunnels failed the spoke could use the 3 others... BUT, what happened here was that the spoke still tried to use all 4 of the tunnels and because of that I had 25% package loss!So this didn't work. Now I read about IP SLA, but I was wondering of this could work? (I cannot test it on spare routers, and I don't want to implement it and risking a total network failure...) and how to configure it. Should I make 4 different sla processes which I should all 4 track? And when I make the ip routes, how should I make or configure it so that 1 of the tunnels/interfaces fails that the spoke would addapt the routes?
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Apr 11, 2012
I'm trying to get two Cisco 1941 routers with HWIC-1T and HWIC-3G-HSPA interfaces to use the 3G interfaces if the frame is down (as it is right now).In the lab, I was not able to get these to use the 3G interfaces as a backup (i.e. backup interface cell 0/1/0) and I've not been able to workout the correct incantation for static routing either.
kununurra#show ip int br d1
Interface IP-Address OK? Method Status Protocol
Dialer1 172.31.2.94 YES IPCP up up
[Code]....
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Mar 20, 2011
I have been breaking my head over a problem with my new 1941W ISR since about two weeks now.When I restart the router, the service-module wlan-ap0 is not working.After a restart of the router, when I ask a service-module wlan-ap2 status, I get:Service Module is Cisco wlan-ap0Service Module supports session via TTY line 67Service Module is waiting for registration messageService Module reset on error is disabledService Module heartbeat-reset is enabledService Module is in fail openService Module status is not available
After a while it changes to Service Module is failed.If I restart the module with service-module wlan-ap2 reset, it works. Is this a technical error?
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Jul 1, 2012
We bought a CISCO1941 K9 router. To enabled IPSec feature, I need the PAK to active IPSec on 1941. Where I can buy a valid PAK? Could it be done via on-line support?
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Mar 23, 2011
I have got a Cisco 1941 router and would like to activate my SSL VPN license on it. How do i go about it?
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