Cisco WAN :: 1841 With Ethernet And ADSL As Resilient?
Nov 28, 2011
I have a cisco 1841 router in place. I also have a ADSL module which fits into the cisco router. My understanding is that if configured correctly, If the primary circuit were to fail (Ethernet Circuit MPLS), the ADSL would take over services until such time the ethernet link becomes available.
Therefore the ADSL circuit is used as a resilient link. If this is possible, can the Cisco 1841 be setup to automatically switch over to the ADSL? Would there be some sort of heart beat between the ethernet circuit and adsl circuit?Also from the other end of the Cisco router, the connection goes into a firewall. If the Cisco handles the failover, I assume I would not need to configure anything on the firewall.
The end users beyond the firewall, should be able to continue, however the performace would be degraded?
Will Resilient Ethernet Protocol (REP) run on all Cisco switches (2960S and 3010) or is it only available on Service Provider switches like the ME3400E?
I am configuring a 1841 router for use in small out office. I will use the s0/0/0 for main WAN T1 connection. I then wanted to use the ATM0/1/0 WIC-1-ADSL card as a failover. I am using weighted static routes for failover. Fe0/0 is LAN interface. When I go into SDM and look at the ATM interface it says this configuration is unsupported?
1. Can't I just get a DSL modem and connect it to fe0/1 and not use ATM WIC and use below for failover? 2. If I have to use ATM WIC what needs to be configured for it to work with Att aDSL?
I have a CISCO 1841 with a HWIC interface to my ISP. I want to make a ADSL connection and my current running-file is: [code] The problem I have is that the ISP connection is established but then goes down.
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?
I am trying to configure a Cisco 1841 to allow the users to access the internet. This is my first step with ppp. All the rest of the configuration is ok but I don't know how to setup the interfaces Dialer0 and ATM0/0/0.
Need very basic configuration that I can analyze and use on my device?
We have an ADSL2+ line from a WIC in a 1841, everything has been fine for the last few years and then the last few months the connection going down. When checking the interfaces the ATM0/0/0 is up up and the same for the dialer interface we are using, they are both up/up, but this still needs a reload of the router to be functional again, shutting the interfaces does not bring the connection back up.
I am not an expert on ADSL lines, I have never really had a problem with anything previously. The router was running Netflow to a network monitor wondering if this or logging was causing an issue with entries in the buffer??
Here is an output of show dsl int, would change the firmware, it has been fine all this time before though we are running IOS 12.4(24)T1 advseck9-m, as far as I can seen from our ISP the config for ADSL is all correct. [Code]
I've moved a Cisco 887 router from a site where it was used to dial up on an ADSL line to a new site where we have a EFM circuit which terminates at a Cisco 1841 router managed by our ISP. I therefore need to re-configure our 887 router to work as a conduit from our servers back to the Cisco 1841 as its gateway.
I have asked from our ISP and they told me that i need to configure the 887 to use IP address 176.35.140.65 255.255.255.248 and its gateway should be 176.35.140.70. That's great advice in theory but I don't know how to configure this correctly
Our internal network is using subnet 192.168.42.XX which will need to be retained for local devices.
We have a cisco 1941 with line t1 Symmetric, (Also have Cisco 1841 unused, but works) I would like to connect the Cisco 1841 to four Adsl Backup lines in case the T1 or the Main cisco 1941 go down I know a BGP is needed on our ISP site,
How can i connect four Adsl lines to The cisco 1841 (Backup) and make them work in a Load Balancing way.
I have a customer with a unique configuration. They have two point to point connections - one using a laser link between buildings, and a backup fiber connection running ospf. Issue is when the laser link goes down, there is loss/no forwarding during the reconvergence, causing issues with transffering video feeds.
I have cisco 1801W . Earlier I am using ADSL dynamic IP address on RJ 11 through the ADSL Port but now the ISP change the connection to RJ45.
I am trying to configure it but unable to do this. ADSL line is okay because When I am connecting through the ISP router it is working fine. I have connected the ADSL RJ45 cable in the router fast ethernet 0.But I wanted to use Cisco 1801 Router so that I can use the ADSL as primary and ISDN as the backup.
Below is my configuration, eiteher this is possible to configure ADSL through RJ45 in 1801 and what configuration require for this.
Router#show ip int brief Interface IP-Address OK? Method Status Protocol FastEthernet0 unassigned YES DHCP up up BRI0 unassigned YES unset administratively down down BRI0:1 unassigned YES unset administratively down down BRI0:2 unassigned YES unset administratively down down
I am setting up a 1921 with two ethernet WAN ports going to two seperate ADSL ISP's (via bridged modems) and one connecting to the internal LAN. There is a single e-mail / web server behind the router.
I have been reading the following which is exactly what we want to do, but I have questions. Maybe failover would be better because Load Balancing seems a little too quirky without BGP. url...
How do we define public static IP's, the example seems to show DHCP?In order to detect if a line is down, it has to ping an IP address that is specific to the connection - correct? So could I use the gateway for the ISP? The issue I have with this is the gateway might be up, but the Internet down. Next, we need to make sure that when someone visits one of our public IP addresses, the return data is sent through the connection requested. What we don't want is a situation where incoming connections are not working.From experience, load-balancing causes certain websites and SaaS applications to break because requests are coming from two different ISP's. Is this the case with OER? Finally, any links, config or something to advise how a fail over only configuration would work given we have internal servers (PAT/NAT inbound would need to translate properly with the failover IP)? Basically if ISP 1 goes down, I.E. router cannot ping 8.8.4.4 then it switches to ISP 2, until ISP 1 comes back online and switches back? This would need to change the NAT rules for inbound as described.
I have a Cisco 1841 that has an ADSL (ATM) card installed. It was previously used with an ADSL line to provide NAT routing for an office. Now I want to use it witha cable modem, which would mean abandoning the ADSL interface and instead routing between the two Ethernet ports.Between the Cisco and the LAN is a Linux transparent proxy. It provides routing between 192.168.1.0 (LAN) and 192.168.2.111 (Cisco LAN interface). The network looks like this:
Cable Modem(174.76.21.1)(gateway) --- (174.76.21.10)(WAN) Cisco 1841 (LAN)(192.168.2.111) --- (192.168.2.11) Linux Proxy (192.168.1.10) --- (192.168.1.0) LAN
For testing and diagnostics, I've connected a laptop to each FastEthernet port on the router. One laptop is configured with the IP 174.76.21.1 to simulate the cable modem gateway and the other laptop has the IP 192.168.2.11 to simulate the Linux proxy. From those systems I've performed the following diagnostics with the following results:
From 192.168.2.11 Ping 192.168.2.111 - OK Ping 174.76.21.15 - OK Ping 174.76.21.1 - Timed out From 174.76.21.1 Ping 174.76.21.15 - OK NAT translation to LAN IP's failing
There are some vestiges of the ADSL configuration, but I've cleaned most of it out and shut down the ATM interfaces. Here's my config:
! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption
my company will change WAN connection from HDSL (2Mb/2Mb) to Metro Ethernet (10Mb/10Mb). Now, I have CISCO 1841 (12.4(15)T12 ) with 2 FE and HWIC-1T. Can i configure my Metro Ethernet (WAN Connection) on one FE or i need of "external wic" such as hwic-1FE ?
The web GUI of the OEAP itself only has a single field to enter the address of a single controller.
But, I wonder if once the OEAP is talking to your WLC across the Internet, you can allocate HA settings to the OEAP so that it can fall back to a secondary WLC if your main WLC fails.
This is sort of hinted at in the docs I have read, but I have not been able to find it explicitly stated anywhere.
It would be nice to have 2 DMZ-based WLCs at two different data centres to allow remote users to have a fail-over solution, but I need to be sure that this is supported before implementing.
I have this adsl wireless router but my internet connection only has RJ45 directly connected to my PC. My questions is how can I use my ADSL wireless router with this kind of internet connection.. because I really want to make my connection wireless..
I have a cisco 1841 whose LAN interface is showing status as "Fastethernet 0/1 is up , line protocol is down" the duplex and speed settings in the Router are in Auto mode and the Router was working fine till now , when i changed the duplex settings to duplex full , speed 100 the ping replies comes back with 5-6 replies then the link dies again..
We want to terminate new 10M link via Ethernet interface on Cisco 1841 router. We have free Gig port on the router. We also have HWIC-FE module inserted in the router. However, our implementation team said that Cisco 1841 doesn't support 10M link. It is not designed to cater to such high Bandwidth.
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.
I have a Cisco 857 router which i used for Internet connection with RJ11 connectior (ADSL0 POTS) but now the ISP has changed the internet link with PPOE type and the ONT connection is RJ45 , Is there a possibility to configure one os the Fast Ethernet ports as WAN port for internet.
Is it possible to set up a WAN interface on a FastEthernet interface of a Cisco 877 Adsl Router ?Due to my ISP, i've to use an external VDSL modem and must connect it to my cisco 877 router (and leave it's adsl interface unused).But i don't know how to set up a wan port, other than the adsl interface itself (dialer0), on my cisco.
We have 2 sites, each with 2 x 4506 switches which will be connected togther using an etherchannel. The switches will provide access ports for client devices and will be configured with HSRP to provide gateway redundancy. SW1 will be HSRP active.2 metro ethernet links will be installed in each site which will connect back to our HQ sites. OSPF will be used over the backbone to provide resiliency and to allow shortest path routing to each HQ and to prevent traffic over the HQ to HQ link.
The 4506 will be trunked togther with an SVI for providing OSFP adjacency.For the traffic flow from SW2 to HQ2, traffic will hit SW1 and then route back to SW2 and then to HQ2. Is this the best way to do this? Should a second link be connected between switches just for routing or should something like GLBP be used?
i have a problem with my adsl line connected on a HWIC-ADSL on router 2901 it was working good until yesterday the atm interface is down but the interface dialer is up .i connected this line into home adsl modem and the line is working good?
I curently have 2 Data centers connected with a Metro Ethernet Connection. Each Data Center has 6500 with Sup720s. The Metro Ethernet connection is currently conected by a L3 routed interface. I now need to enable VRFs between the locations and want to determine the best way to adjust the Mero. I was considering adjusting the routed interface to use Ethernet sub-interfaces. Each VRF would be given a different subinterface over the Metro Ethernet connection. I have done this on internal LAN connections but am concerned about exteding across data centers over Metro E.
I am having a problem with my Realtek RTL8168D/8111D PCI-E Gigabit Ethernet NIC. It is not detecting my ethernet cable, and thus leaving me without internet on my desktop, after i updated its driver. The cable is not the problem as I have tested the cable with my laptop. I tried rolling back drivers, doing system restore and removing drivers with driversweeper and letting windows install the drivers again. However, none of these worked for me. I doubt the NIC is faulty as it was working before i updated the drivers. I am using windows 7 home premium 64-bit.
I've had trouble connecting to my own internet and have no wireless. I'm using my neighbor's wireless and it's really slowing her's down. I've tried restarting my laptop (it usually works) and then reinstalled the device under "device manager". It's not the cord, I've checked with my neighbor's laptop and it works fine.I use a Sony Vaio VGN-NS140E with Windows Vista SP2.
------------------------------------------------------------------------ {ipconfig /all} This is while I only have an ethernet plugged in and no wifi connection. Windows IP Configuration Host Name . . . . . . . . . . . . : FairyHo
I just got a new Xbox today, and use the integrated WiFi card. I was lagging like Crysis 2 on a 6800 GT (forget it). I just got a CAT .5 cable, and plugged it into modem/xbox and IDK... it works, I'm online, but basically my question is:Does ethernet connections have less ping (better) than wireless connections? This is with the Xbox 360 Slim. I know it improves upload, and download, but what about ping?
I have a Dell XPS M1530 with Vista 32 bit. When i plug in a cable i get nothing, no error, and the comp does not recognize that a cable has been plugged in. I think that this started after my Hard drive failed and Dell replaced it but i'm not positive. No errors (? or !) in Device Manager and I can't find the Marvell 88E80XX 10/100 Ethernet Controller in device manager. I have attempted to Reinstall the drivers. The wireless is still working. I have one Light to the right of the port that is on all the time solid but no flashing with the cable in or out.
I've got a router on which I run a backup/media/print server, a couple of computers and a voip box. My router has only four ethernet lan sockets which are thus all occupied by the above, but I need to attach at least one further device b
Secondly, could a splitter such as >> this one << do the job? I'm guessing this basically split a single 4-pair ethernet connection into two 2-pair ethernet connections.
