Cisco WAN :: 1841 - Two Routers Connectivity In LAN
Oct 15, 2012
I am having two routers of 1841 series.In router 1 I am connected with my Cloud Network and in router 2 I am connected for internet.
I need both the wan connectivities to be advertise in my network for my LAN which is configured with DHCP in my ROUTER 1
Now should I connect this both routers in one switch but I'm having 2960 switch :-(
what should I configure Policy base routing or static route.
Router 1
int f0/0
ip add 10.x.x.x 255.255.255.0
[Code].....
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Feb 6, 2011
For educational reasons (a Videoconference class), I need to connect two 1841 router with each other. They both have HWIC-2T modules, but it's almost impossible for me to have the CAB-SS-2626X Smart Serial crossover cable on time. So, I was wondering if there will be some kind of a problem if I connect them through a UTP crossover cable using their FastEthernet interfaces. I suppose it will not "simulate" a serial wan connection but, would it work as a router to router connection?
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Aug 30, 2012
I'm trying to do vpn between two routers. The first router model 1841. Dial settings is like this:
crypto isakmp policy 1
encr aes
authentication pre-share
group 2
[Code]....
My other is model c850
crypto isakmp key 6 cisco address 82.80.137.216
crypto ipsec transform-set yoni_to_hakim esp-aes esp-sha-hmac
crypto map yoni_to_hakim 10 ipsec-isakmp
set peer 82.80.137.216
[Code]....
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Jul 26, 2011
We are running DHCP Server on our cisco 1841 routers with 12.4 IOS. We want to maintian a Database of all the DHCP IP Leases by the server (ie router), the time and date of lease all the information in a Central / Branch Database.
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Oct 31, 2011
I purchased a RSV4000 for my home network and I was setting it up when I ran into a bit of an issue. My WAN is set for DHCP so it received an IP and DNS information from the cable modem. From the router I am able to ping my providers DNS servers as well as tracert to google.com. From inside my network I can log in to my admin page and see my other devices so internal DNS is working fine as well as DHCP. I can ping my router internally and I can also ping the WAN IP address of my router internally but that is as far as I can get.
From a PC on my network I cannot access any web content beyond my router WAN port, which I have verified has connectivity. I have power cycled both my modem and my router numerous times to no avail. I plug my old router back in and it works with no problem. I plug my computer into my modem and it works as well.
I turned off all firewall settings, set it so that it is in router mode and edited the DHCP and LAN IP information on it but that is all. All of the other settings should be default.
I even went so far as to plug the RSV4000 into my old router which was plugged into my modem since I know my old router worked. It did the exact same thing. It received an IP from the old router, was able to ping externally and I was able to ping the WAN port but then after that bupkiss.
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Aug 20, 2012
I am looking to setup a solution for backing up a Metro Ethernet connection on a 2951 using an 1841 and 2 T1's in a Multilink. The Metro E will be primary, and if the BGP peer goes down, I want it to switchover to the 1841. Can it be done and is there an example of the BGP setup to work off of?
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Apr 28, 2009
This is only a small portion of our network but my question is, can these 1841 routers handle a 45Meg connection? I thought these routers were designed for T1/E1 type speeds. I know I saw a router performance document somewhere that showed 1841's could handle 38.4MB of traffic and that is only with routing turned on. If anything else is enabled, like access lists, NetFlow or whatever, that number will decrease because of the capacity of the router. Am I correct in these statements? Any document or anything else that shows performance of these routers?
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Aug 10, 2011
I have RV 120W Wireless-N VPN Firewall and having issues with connectivity and communication between PCs within the same LAN. I tried the following to check connections:
1. Finding the computers within the workgroup using wondows network or (finding the computer) without avail.
2. Pinging the IP address of the PCs within the LAN. Request Timeout is given.
3. Pinter Network is working fine.
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Aug 5, 2011
I recently replaced RV016 with a new one. Now I'm having connectivity issues with my server. One particular software I'm running on workstations will no longer connect. Everything is set up the same as with the old RV016. Internet connection is fine.
Based on the tech support from the software company, they are saying - "The clients contact the server using the HTTP protocol and the server IP address or host name. You should begin troubleshooting by pinging the server from the workstations to see if they have any connectivity to the server and move forward based on the result of that ping." Pinging the server from the workstations results in timing out.
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Aug 17, 2011
After upgrading an RV042 from 1.3.12.19 to 1.3.13.02, it loses connectivity after several hours. RV042 WAN1 is connected to cable modem (WAN2/DMZ is unused), configured to obtain IP Address.
Cold booting all devices, RV042, AP & Cable modem, re-established connectivity. Only to lose connectivity again several hours later.
Reset RV042 to factory default via reset switch and cleared log. Minimal configuration applied (domain name, hostname, ntp, WAN1 bw=8000).
Checked early this morning and no connectivity. Summary screen showed the same IP on WAN1 port. All appeared normal. Clicked renew, and connectivity was re-established. Same IP as before.
The RV042, when running 1.3.12.19, would run for many months without a hiccup.
This is the log entry when I clicked 'renew':
Aug 18 04:12:40 2011
System Log
DHCP lease info: ip[68.202.x.x] mask[255.255.240.0] gw[68.202.x.x]
[Code].....
Clicking 'renew' did re-establish connectivity, but I'm not sure if it's a dhcp issue or not. If I read the log entry correctly, the router has the IP lease for an hour, which means it renews several times successfully. Connectivity is down in the morning after several hours go by without use. I'm not sure if that has anything to do with it. Again, nothing changed but the code and the RV042 ran without problems for months with the 1.3.12.19 code.
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Jan 27, 2013
We have an office with about 10 PCs, and several other network devices (smartphones, printers, etc). Some PCs and printers are wired, some are not. About two weeks ago, some (6) of the wireless devices lost connectivity. Since then, some (4) of the devices have also recovered normal connectivity.
As of right now, there are two computers, a laptop and a desktop, that cannot use the wireless network. They see the wireless network, connect to it, receive an IP via DHCP properly, have correct DNS servers listed in ipconfig, but they can't ping the router, use the intranet, or internet.
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Jun 3, 2013
I have two 1841's, setting up a Lab WAN in Packet Tracer. I have one of the 1841's run to a DSL modem, then out to the cloud and the same setup on the other end... from the cloud to the DSL modem and to the 1841 on that end... I have all green lights, so that tells me layer 2 is up, but I'm trying to figure out
what IP to assign the routers to test pinging and getting traffic flowing. but the DSL Modem's have the public IP's and dynamically assign an IP to the routers? I've also tried setting up a static IP on the routers fa0/0 interfaces and the pings fail.. Wondering what I am missing to get these two talking.
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Oct 22, 2012
While I managed to connect to each router individually, I decided it was time to connect the routers together via serial; as I don't have any serial cables and need to buy some, what serial cables I need, as well as to ask whether I have the right cards in my router(s) that will allow me to do so.
I bought 3 1841 routers, and all have a 1 port serial WAN Interface Card (WIC 1-T); one router has 2 of these, and one router has a WIC-1B-S/T .. My question is, can I connect the routers with a serial cable via WIC 1-T, or do I need a 2-T
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Jan 26, 2012
I manage the I.T. department for an ambulance service. We have 12 ambulances all equipped with Verizon 4G LTE Samsung hotspot cards. [code] There are laptops in each of the ambulances that connect to the wireless cards in the ambulance via DHCP. I get frequent problems when the vehicle get close to each other of them jumping from one card to another... which is not a huge problem, except when it happens the computer will have a "limited connectivity" to the internet. This sometimes will resolve after 3-5 minutes on its own, or if i disconnect from the wireless card and reconnect it will resolve, or sometimes by rebooting the wireless card it will resolve.We also need the ability to move the laptops from one ambulance to another as well so we need to have this flexibility.would I be better off establishing the same IP address to each of the wireless cards, still keeping different SSID's and different channel #'s and then hard code the IP address into the laptop instead of using DHCP to connect? My goal is to eliminate the limited connectivity issue.
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Oct 11, 2011
I just spent a number of hours getting a site-to-site VPN tunnel and Cisco Quick Connect client running on my WRVS4400N and RVS400. Turns out the problem was the routers don't route IPv6 properly and it takes precedence over IPv4
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Jan 15, 2013
RV220W worked good with QuickVPN, but suddenly lost such ability and doesn't allow connection from any Windows machine (Xp,Win7 32/64 bit)
QuickVPN is ver. 1.4.2.1
Cisco RV220W firmware is ver. 1.0.4.17
Client error on Windows XP in Log.txt :
[STATUS]OS Version: Windows XP
[STATUS]Windows Firewall is OFF
[STATUS]One network interface detected with IP address 10.1.1.165
[STATUS]Connecting...
[DEBUG]Input VPN Server Address = x.x.x.x
[code]...
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Jul 30, 2012
I have a Catalyst 3750 that was already configured with a minimal setup and integrated into one of our labs. The 3750 works fine and does everything we need it to for our internal wired network for that specific lab. The owners of the lab are trying to integrate an RV220W into the lab. So i am trying to set up this RV220W as just an access point as was requested. I've disabled all of the extra features on the device so it is being used as a WAP/Router. We have separated the 2 networks into separate VLAN's. VLAN 2 is used for the wireless, VLAN1 is used for the wired. The wired works great. I can connect to all devices on the cisco switch through the RV220W and vice versa.
We have tried disabling the RV220W's dhcp and using the rv220 as a dhcp relay from a server in the lab but it has the same results, so we've disabled dhcp from the lab and are using it on the rv exclusively since everything else is static.
Cisco3750 <----> RV220W <---- wireless/wired devices.
192.168.10.x for the wired network.
192.168.2.x for the wireless.
I can ping both sides of the VLAN's(If i have .10 IP, I can ping 192.168.2.1(interface for wireless VLAN on the router) when wired into the RV or plugged directly into the switch... Here it comes...
as soon as i connect the RV220w into the Catalyst switch the wireless gets EXTREMELY intermittent. The network shows up then doesn't show up in available networks. When i try to connect to it, it will time out and connect back to other available networks. As soon as i unplug the device from the switch the wireless is stable and there are no problems connecting to it.
We tried using a Dell switch instead of the Cisco to test, the wireless is stable. Wireless assign's a .2 subnet IP as it should and i can connect to everything on the Dell switch(.10 subnet) and vice versa. Also connected this device into a couple different 3750's and had the same issue. They are not heavily configured so many default settings may still be enabled.
Also tested 2 other devices on the Cisco switch, a linksys WAP and a Netgear Router. Both acted the same. I don't think it is the RV220W. I'm sure i'm missing something on the Cisco switch.
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Apr 2, 2009
I have 1841, 2800 and 3800 routers and need to do IOS upgrade to all of them. Existing routers do not have enough flash to hold 2 IOS images.if the router has 12.4.13r ROM IOS, will I be able to boot the ISR router via Cisco brand USB? That means in case something goes wrong while I am uploading new IOS to the router via WAN and something wrong, now router in ROMMON mode. If a local site person has a Cisco USB with an IOS in it, can he just stick it to the router and reboot the router and router will go out of rommon and go into normal mode? After it is working, then I can put the running IOS onto the exisitng CF card so now I can remove the USB and the CF card has a good IOS and reboot the router again.I am just trying to find a safe way to upgrade the site when they don't have big enough flash to hold 2 IOS at the same time. The local person is not technical so asking him to setup tftp server and put the IOS in the computer and so I can do tftpdnld while in rommon mode to grab the IOS from his tftp will be difficult to have the local person to set it up.
If ISR can boot off of the IOS in USB only, then I assume the requiremetn is the ROM IOS needs to be 12.4.13r. Then what is a safe way to upgrade the ROM IOS to this then? I never upgrade ROM IOS before so don't know what kind of problem I may run into and whether it's higher risk to upgrade this than upgrading the regular ios? If it is, then all my routers won't have this ROM IOS version, so that means I can't use USB to boot then? Will that means I am down to tftp server option? ( I heard xmodem won't work as it will time out before the ios can load via the slow dialup link into the router to rescue it from rommon mode).
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Jun 17, 2012
I would like to set up a POTS Dial connection between 2 Cisco routers, using the modem card WIC-1AM-V2. I'd like to use this as an out-of-band connection to a remote site, if the primary internet connection fails. So, this setup will only be used in one direction, 1 router placing calls, the other one receiving calls.Here's my config of the receiving router:
chat-script dial "" ATZ AT OK "ATX3D T" ATS0=8 TIMEOUT 120 CONNECT C
interface Async0/2/0 description out of band for network no ip address encapsulation slip async mode interactive
line 0/2/0 session-timeout 5 absolute-timeout 10 script connection dial login local modem InOut transport input all escape-character BREAK autoselect ppp stopbits 1 speed 115200 flowcontrol hardware
[code]....
This config is working fine, when dialing in via a Windows Hyperterminal Dial connection. After a while of dialing I get the login prompt of the router.Now I want to have a router placing calls instead of a Windows Server. I can't figure out how to tell a router to place calls to a POTS phone number.
Receiving router: 2811, WIC-1AM-V2, IOS c2800nm-ipbasek9-mz.124-25a
Calling router: 1841, WIC-1AM-V2, IOS c1841-advsecurityk9-mz.124-25a
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Feb 4, 2011
I have a Cisco 1841 router with the followingSerial T1 connection Fastethernet 1 with network address 192.168.0.1 Fastethernet 2 with network address 198.168.0.1I want to isolate Fastethernet 2 so that it cannot access the internet or the 192.168.0.1 network. Only incoming request is available.
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Jan 31, 2012
I've downloaded the file "RV0XX-v4.1.0.02-tm.bin" from Cisco's web site. The current firmware in the RV016 router is V3. I log into the router with IE9 (or even firefox), navigate to the system management section, upgrade firmware tab. Browse to the file above and click the button to upgrade. Nothing happens for a few seconds, then the browser displays cant load this page. (Same results if I use the file "RV0XX-v4.1.1.01-sp.bin" as well.)
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Nov 4, 2012
I have an RV220W running firmware 1.0.4.17. I have a couple of wireless laptop users that connect to the wireless without problems, but frequently cannot access the Internet. They can always access local network resources, but for some reason when laptops are first powered up or are idle for a prolonged period of time, Internet access is lost. Wired clients never experience this problem and always maintain local network and Internet connectivity.
To get the laptops to access the Internet over wireless, we have to run a TRACERT command from the command prompt to a public IP address, and then all Internet access is restored.
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Mar 17, 2013
found that the problem is (temporarity) corrected after we power cycle the router.
The firmware installed in the latest published. See below:
System Information
Serial Number : NKS15481665 Firmware Version : v4.2.1.02 (Jan 18 2012 14:10:55)
PID VID : RV016 V03 Firmware MD5 Checksum : a9817f2dbdcbd6a5c109eaa21b1c3545 ystem InformationSerial Number : NKS15481665 Firmware Version : v4.2.1.02 (Jan 18 2012 14:10:55) PID VID : RV016 V03 Firmware MD5 Checksum : a9817f2dbdcbd6a5c109eaa21b1c3545
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Jan 3, 2013
I purchased a new N600 dual band router (2.4 and 5.0 GHz). I set up security to use WPA/WPA2 PSK (AES) on both bands. The devices that can see the 5.0 band could connect without issue, however those devices that can only see the 2.4 band (older devices like the Nintendo Wii, my desktop computer with wireless, and iPhone 4's could not connect). In troubleshooting, I finally disabled security on the 2.4 band and everything connected without issue, but I cant figure out how to successfully enable security on both bands at the same time.
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Apr 19, 2013
Looking for a SOHO device that could accomplish not only to connect people from home to Internet, but also to let me remotely access my work stuff (from my home office), RV180W sounded great and really cost effective. I could connect to Internet, FROM Internet, separate home, work and guest VLANs, all in just one device... sounded just GREAT! Bought one but (unfortunately) I have to say I'm quite disappointed with its performance, outnumbered errors (how many!) and continuous lost of Internet connectivity (can't stay a full day without one).I've searched a lot (not only here) and tried many things, listing some:
- Upgrading firmware (now v1.0.2.6): done several times, once with nothing connected to the router besides a local wired laptop, to ensure integrity
- Resetting to factory defaults and performing a "clean configuration", from scratch (done several times)
- Disabling Firewall functions (once all of them)
- Checking the real need of every option and making sure I had just the ones I needed configured
I have (in a very "consistent" way) the following problems:
- Poor performance (it's clearly much better when I directly connect to the cable modem's WiFi OR to another router connected to this cable modem). I could say that it seems to have 50% of the performance I had with my CISCO/Linksys E4200 and Netgear "elder" routers.
- Persistent disconnections / resets: Sometimes it happens only with wireless, sometimes it looses the "Internet forwarding capability", retaining the local wireless connection (to other devices), sometimes it seems to make a full reboot (including a new DHCP request to cable modem). In a day this happens several times, I'd say from 3 to 15 times, depending on the day (couldn't figure out why).
CPU utilization is always shown as being 100%, what sounds amazing, because:
- There are usually just 4 wired connections (3 storage devices + 1 Desktop) and at most 5 wireless connections (including my laptop connected to the main VLAN and 3 Android devices and 1 "guest" laptop connected to GUEST VLAN)
- The utilization % remains when I have jut one laptop performing Internet browsing and nothing more
- VPN wasn't enabled yet (and it will be, as I want to remotely connect to my home office) [code] ......
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Apr 26, 2013
I have 2 Cisco routers , 1841 and 2811 , I need to setup site to site VPN , but i dont now some how it just does not seems to be working ,
Find attached the Configuration along with the
<----- 172.31.1.0/24----- DG:172.31.1.1>Cisco 2811<Dialer1 -----//Internet//----------Dialer1>Cisco1841---< DG:10.236.5.254-------------- 10.236.5.0/24--->
Find attached command executed on each router in the below order
1) show ver
2) Show run
3) show logging
4) show crypto ipsec sa
5) show crypto isakmp sa
Debugging enabled on routers are
1)Debug Crypto Isakmp
2) Debug Crypto Ipsec.
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Feb 1, 2013
I am putting an pre-labbed DMVPN Hub config onto a production 1841. We had to upgrade the IOS to support protection with NAT so the current IOS we're running is c1841-adventerprisek9-mz.124-25g.bin.I can paste the configuration in fine (via the tunnel interfaces) and the router accepts it however the 'show dmvpn', 'debug dmvpn' and other related commands don't work. I have checked the IOS feature navigator and it definitely shows that DMVPN phase 1 and 2 are supported in this image.
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Nov 17, 2012
I have a 1841 router and I can ping the f/0 port from my pc. However when i try to console to it, it is not showing up anything but a blinking cursor. I tried all different baud rates on my teraterm but still not luck. I picked the baud rate disconnected and reconnected everytime and still nothing. Then I tried to telnet to it using teraterm but it would just open a console window and then close.
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Apr 28, 2013
a have a router CISCO 1841 and I configured a NAT inside from the router to the firewall like this :ip nat inside source static firewall_adresse public_adresse and its work fine and when a added it I do this command "wr" to save the configuration and I restarted the router many times and it still work fine,but in the last five months this NAT does not exsit twice and I must add it a gain.
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Nov 23, 2011
How to enable GUI for a Cisco 1841?
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May 9, 2012
We have an MPLS that connects our main office with our 7 branch offices. We have 3Mb coming into the main office and 1.5 into all of the branch offices. I would like to give rdp traffic the highest priority. We have a Cisco 1841 at all branches and a Cisco 2811 at the main office. Do I have to configure QOS on all routers or just the one at the main location?
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Jan 12, 2012
I have a cisco 1841 router and want to run BFD i think it needs IOS 12.4T..It has currently 12.4 but no T does the "T" IOS have mroe features?
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Nov 23, 2011
How to enable GUI for a Cisco 1841?
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