I have a 1921 router with two wan interface configured, one is primary and the other is standby or backup in case the primary goes down, I was able to configure links to failover from primary to backup once there primary is down, but how do I configure to make sure when primary is up it failbak to to it. [code]
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We have purchased a Cisco 1921 with twin ADSL after advice from a Cisco sales rep. However I am having trouble working out the load balancing/fail over config for the device.
I would like traffic to balance over both ADSL lines and if one goes down not to interrupt connectivity.
I had a look at ppp multilink but I am unsure our ISP (BT) support this?
!! Last configuration change at 13:18:34 UTC Tue Mar 29 2011!version 15.0service timestamps debug datetime msecservice timestamps log datetime msecno service password-encryption!hostname xxxxxx
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I would like configure two router (e.g. 1921) back to back via a 2 pin copper wire. Can I use HWIC-4SHDSL-E card to do it? What is the configuration I can use?
View 7 Replies View RelatedWe've recently sold and implemented a wireless solution using a WLC, WCS and 1140 APs.
There is a HQ site where the WLC, WCS, DNS and DHCP reside. Active Directory and a RADIUS server are also located there. There is then a WAN link to remote sites which sometimes fails. At the remote sites you'll just have a router, switches and the APs. The intention is for the APs to work in lightweight mode, falling back to H-REAP when the WAN link fails.That works fine, but what doesn't work fine is the APs rejoining once the WAN link is restored.
They just don't. Even days later, the APs are still all disassociated from the controller despite the WAN link being up. I've 'hardcoded' the controller IP into the AP configuration, while the APs initally get the IP for the WLC from DHCP using Option 43. Despite the APs therefore knowing where WLC is, once they're disassociated from it (WAN link failed) they will not reassociate by themselves. Restarting the APs is the only way to get them to rejoin.
With hundreds of APs and in excess of 30 switches, restarting all the APs each time the WAN link fails is pretty ridiculous.
I've logged a TAC case and gone through the whole rigmarole, this is an offical bug and Cisco have informed us that it's due to be fixed sometime early 2011, but besides that there is nothing they can do. So to be perfectly clear, Cisco have sold and shipped a product that doesn't work as advertised and they best they can offer us is a promise to fix it soon. I'm pretty shocked, I've never had this experience with Cisco in the past.
Ok, so now I've got to come up with a decent workaround until we get a firmware release where this is fixed. I'm looking at using CNA to automate the reloading of all the switches, I guess when an outage is reported I'll just write a procedure for the client to follow to reload all their APs.
A script that can query the associated status of APs and reload them as needed, automatically, would be pretty cool. Perhaps that can be done with SNMP.
I need to configure two links (active and failover) on router 2911. Do I need DATA LICENSE to configure this with static router and route-map?
View 4 Replies View RelatedI have a remote site with 2 WAN links.Link 1 MPLS with telecom provider managing the PE and advertising EIGRP routes to my switch(3750-E stack).Link 2 Directly connected to core site switch (4506) and advertising EIGRP routes.
It looks like this:
-------- Provider MPLS Cloud ------- GI2/0/1Remote Site (3750-E Stack)
Core Site Switch(4506)----
gi4/2------------------------------------------------ GI1/0/1Remote Site (3750-E Stack)
When both links are up MPLS is disrupted from other sites (that have MPLS only) to the core site. I was unable to get a route list to see what exactly was going on before shutting the directly connected link down.What i'd like to have is:Use MPLS as my primary link as it is fully meshed with all my remote sites (and not just the core) and have the directly connected link as my failover in case of issues with the primary. I assumed putting a delay 1000 on the directly connected link at the remote site would have been enough but it looks like both were active and leaking routes all over the place Is there a way to set this up that the MPLS link is favoured and if it loses routes to that specific remote site it would failover to the directly connected link?
Here is my current configuration for EIGRP on the remote and Core sites:
Remote 3750-E
router eigrp 100
redistribute connected
redistribute static
passive-interface default
no passive-interface GigabitEthernet1/0/1
[code]....
I have two Internet links:ISP1: only Site 2 Site VPNsISP2: only HTTP/HTTPS traffic and incoming remote access VPNs With the security plus license I could correctly configure them both as active at the same time on the same ASA device. Also, I've successfully accomplished the following traffic separation:
Site to Site VPNs goes out through ISP1HTTP/HTTPS traffic goes out through ISP2 The customer request is that, when ISP1 fails the S2S traffic is relayed through ISP2 -> This is working fine, I've already tested!But when ISP1's service is restored and that link is working fine, I want that the S2S VPN traffic gets relayed through it again automatically, which didn't happen. My question is: using SLA will the S2S traffic be relayed through ISP1 again automatically when it's services are restored? If not, which technology should I use to accomplish this?
PS: This is all configured on only 1 ASA 5505 whose license was upgraded.
I have two sites with identical asa 5505's and each has the dual wan/ISP links and are set for failover using sla monitor tracking. I would like to create a vpn between these two sites that stays active regardless of which ISP link is online. Do I simply make two crytpo map statements10 and a 20 inside each of the asa's to each of the other ASA's STATIC PUBLIC IP's? [code]
View 6 Replies View RelatedEquipment Cisco1921, HWIC-1ADSL, 2 x GB Ethernet interfaces (Only one used for local LAN) Software IOS Version 15.1(1)T2..I have been asked to configure this router to provide an IPSEC tunnel back to our central office.We have been provided with an ADSL business class 7MB service from Telecom Italia, they have presented the circuit to our office with no terminating equipment (wires only). Telecom Italia have provided us with some IP addressing information as follows (I will not disclose the entire IP address) [code]
I can see that the packet count is increasing both inbound and outbound on the ATM interface. I have read many documents and tried many different way to try and get this resolved, I even logged a call with Cisco but no dice.
I have a couple a questions answers on which i cant google for a period. BTW maybe i simly use wrong aproach to choose keywords.
1) Is it possible to assign same ip address to the same client each time it authenticated, preferably without using DHCP? Im definely sure that it possible but cant find corresponded configuration examples (my device is Cisco 1921 with IOS 15.0.1).
2) Is it possible to assign dynamic crypto map to loopback interface (the purpose to make EASY VPN Server accessible through two interfaces - maybe you recommend other approach instead?) - as i move workingcrypto map from phy int to loopback - i cant connect with reason "Phace1 SA policy proposal not accepted"
I have a 5510 with me. I want to terminate two Internet links on that. The primary Internet Leased Line to access my DC network using Site-to-Site VPN, and the secondary ADSL connection to access my other location network via VPN and and for web browsing. How can I achieve these goals.
View 1 Replies View Relatedsample configuration for internet failover . i have 2 ISPs with one coming in thought a serial cable and another through internet and would wish one take over after the other has failed .The router is Cisco 1921 .
View 4 Replies View RelatedI am using a Cisco 1921 with a Verizon 4G LTE card installed. The primary connection is a Cable Modem with the 4G LTE acting as the backup. I've setup a track on the static route to the primary ISP. I'm having multiple issues. Initially I used the Gig 0/0 int instead of a Loopback address for the IP SLA source. The IP SLA traffic would be sent to the cellular interface and cause an IP source violation and the interface would flap. Then I used the Loopback and I could not get the route to fail back when the connection came back up. Even with the Loopback as the source for IP SLA I'm still getting flapping and I think that is a NAT configuration issue. I've applied an access-group on the cellular interface to try to fix the ip source violation issues, but it doesn't appear to work. The IP-SLA-POLICY route map is an attempt to force the IP SLA traffic to the primary interface. [code]
View 1 Replies View RelatedIn a site we currently have 1 BT provided ADSL link which is currently terminated using their device which I believe is some kind of 2wire device, which is extremely slow due to distance from the Exchange (4Mbps)...We have a growing number of users here and want to install a second ADSL line from BT to give them increased performance.
We have a Cisco 2800 sat not doing much so I was wondering if I could use this to load balance the link? I know BT do not support MPPP so therefore the maximum any user can get will be the speed of a single link (4Mbps)...But basically how can this be done..
Can I leave the two BT routers in place and place the Cisco 2800 behind them, or do I need to purchase two ADSL modules for the 2800 and terminate the connection there?Also once done, what do I need to do regarding actually setting up the load balancing? I have seen this:
[URL]
But am unsure as to how relevant it is? I am not sure I understand what the ACL's are being used for? I just want all users on the LAN to load balance out...
Also I am unsure of this statement:You potentially need to add policy-based routing for specific traffic to ensure that it always uses one ISP connection. Examples of traffic that require this behavior include IPSec VPN clients, VoIP handsets, and any other traffic that use only one of the ISP-connection options to prefer the same IP address, higher speed, or lower latency on the connection.I do not understand why a established session such as a VPN client, would ever traverse the second ISP connection anyway?
Lately we have been comsidering an upgrade in our organization involving a 1921 router. The main role it will play is a load balancer/failover between 2 connections from 2 different ISPs. what additions are required to be added to this piece of equipment to make the configuration work. Im researching the matter now and it seems an extra card whould be purchased in addition to the router. Also, i cant seem to find much information on the available licenses to go with the router. will i need a special license to utilize the balancer/failover feature? (ip base, data, SEC).
View 2 Replies View RelatedHave a 1921 that has 3 eth connections (1 LAN, and 2 WAN) - I have 2 seperate OSPF processes (2 areas) on the WAN Ints - both upstream WAN's are sending defaults back to the 1921, and the 1921 is sending it's LAN range to them.
I have ip ospf cost 150 set on the "failover" WAN connection interface (Both on the 1921 and upstream), but the 1921 is preferring the default route from the "failover"?
The default routes are both being received by the 1921, but it's preferring the "failover" Int with the ip ospf cost 150 configured?
I had a working active/passive pair of ASA5510's, and then I had to do a rush firmware upgrade, but didn't have time to do it on the secondary at the same time. Now I have made config changes and upgraded the secondary firmware to be the same, and wish to know if I plug it back in if it will think the secondary has the "correct" config or if it will know that the primary is newer. I disconnected the failover cable because it was complaining about version mismatches constantly.
Is it safe to add the secondary back in or is it possible it will be declared newer and overwrite the config?
I am simply trying to configure fail over configuration in my 1812 router. I have done some configuration on my router but my configuration is not working as i want. My router does not goes to secondary route until i unplug the primary interface cable on my router. when i unplug the primary cable it goes to secondary route and then i plug back primary cable the router come back to primary link.so my configuration is working when my primary gateway down but it is not working when internet goes down from isp end. i have attached my running configuration.
View 6 Replies View Relatedwe are trying to configure 1841 with dual Internet connection with failover using track.
View 4 Replies View RelatedI have a dual ISP, 1 primary and 1 secondary terminated on fa0 and fa2 on our ASA respectively. ASA was configured so that, when the primary fails, the secondary kicks in. [code]
It was until yesterday that we experienced downtime on the primary ISP that the secondary doesn't do the fail-over. I have to manually configure the device to use the secondary ISP. Currently, I'm looking at maybe this has something to do with the licensing.We are currently using a Base License, should we be upgrading to Security Plus?
Region : Others
Model : TL-WDR4300
Hardware Version : V1
Firmware Version :
wdr3500 problem with usb external hard drive when I try to transfer files from computer to usb on the router it'll work for small files like MP3. But files like MKV where they can be 1-2gb will cause a disconnect and fail to transfer the file. The whole drive would disconnect and windows will give an I/O error.
Below is the config has done on my 881g but the dual NAT failover is not working.I have a easy vpn over NAT (easy vpn firewall: 10.10.10.2 behind the router).
1. After completed the config, I shut down the FastEthernet4, cleared the nat translations, found that nat translations are happening on to Cellular0 with error ( Incomplete ESP translations: 0 esp_conn=0x85A91FF0, hanging off nat entry 0x85A7D1D0)But still the easy vpn is not up as I am not able to ping the remote devices.
2. If I reboot the router then the nat translations are happening with no above error and easy vpn is up and I am able to ping the remote servers. Below is the config, what needs to be done to achieve the NAT failover and easy VPN up.
interface FastEthernet4 bandwidth 2048 ip address 206.206.206.2 255.255.255.240 ip flow ingress ip nat outside ip virtual-reassembly duplex auto speed auto interface Cellular0 ip address negotiated ip nat outside ip virtual-reassembly encapsulation ppp dialer in-band dialer string gsm dialer-group 1 async mode interactive ppp chap hostname. [code]
What I currently have is a Cisco 891W Router as well as two ISP's (both with dynamic IP's) in. I'm currently just running one of my modems into the 891 through the FE8 port and then if for some reason I have an internet failure switching the ISP modems. What I'm wondering is if there is a fairly simple way to configure (and attach) both modems to this router and then set it up to handle this failover automatically?
View 1 Replies View RelatedIn my network we have 2 ISPs connections 2mbps from different service providers are terminated in two different routers (Cisco 3845).Now i want to achive if one router fails(ISP down) next router has to up and if both the links is up i need to achive load balance for both the routers(ISPS).i need 100% uptime.
How can I configure the routers, any examples to achieve the HW failover.
I'm trying to see if I can use both ethernet ports on a 2811 to run hsrp for non-stacked dual switch fail over. Then link the the NM-32A ports to L0, so the remote access server trying to use them can use the l0 ip and failover much faster (it's programming is limited). This is on IOS 12.4(25)f, though we are moving to 15 soon.
View 2 Replies View RelatedWe had an interesting situation after an electrical storm moved through where a few of our dual WAN clients didn't have any Internet connectivity. Generally speaking, they are on a wireless broadband and something like DSL/cable/T1. One customer in particular has a cisco 1941 router setup for dual WAN which tested fine during install (pull either connection, external IP changes dynamically and no difference is noticed by user). Well, this storm knocked the wireless broadband out enough that it wasn't usable, but would respond to pings randomly. Because the wireless is the fastest of the two connections it has a higher priority but because it was down but still responded to some pings, the traffic didn't go through the DSL that didn't go down. how to make the dual WAN more reliable in these partial-down situations? I thought about playing with the network service detection (we have a customer on an RV042 who experienced the same problem) but am not real sure what I could change that would make the connection more reliable, especially on the 1941 router.
View 1 Replies View RelatedI am having a hard time getting tunnel fail over working. My setup is illustrated below:
I derive my default route on the border routers. The 6513 peers with the 7206's using BGP to get the default route from each ISP into the core. On the core I use BGP weighting to get my primary default to point to ISP1. So far so good. When I look at my core I see to defaults with ISP1 preferred.
Each ASA has an IP Sec tunnel to the head end site configured (Not shown). The head end site has a crypto map entry with ISP1 and ISP2 defined (in that order) using the "set peer" command.
Fail over works great if an ISP drops the connection or my 7206 or ASA fails, but... While testing fail over I had an issue where both tunnels would be active and there were issues with traffic between sites. I could not determine the root cause. I can only guess that some traffic was going out one tunnel and when trying to come back across the other tunnel was dropped from the firewall because there was no connection built for it. After reading I found that in order to use multiple peers in the "set peer" statement, I needed to configure my head end as "originate-only". I have not done this yet as I have concerns. If the head end site is "originate-only" and the tunnel, for whatever reason drops, I cannot wait for interesting traffic at the head end site bound for this site to bring up the tunnel as most of the traffic originates at this site.
I have been reading about IKE keep alives and DPD but that doesn't sound like it will re-initiate the tunnel. Is this correct? If so I'm looking for a way to make this work.
We have a customer who has a network consisting of two ISPs, one as a primary and the other as a backup. We are trying to create a configuration that would allow the primary link to fail and the secondary link to automatically pick up traffic and begin routing .how to set something like this up. Both routers are non Cisco routers and there for HSRP is out.
View 14 Replies View RelatedI am putting together a solution for a client. The client has an MPLS circuit and internet as a backup circuit. I understand that we can do WAN failover using ASA5510 appliance.Now, if i am adding dual ASA5510 active/standby mode, How do i automatically failover WAN circuits to standby firewall if both MPLS and Internet circuits are connecting to primary ASA5510. Should i connect MPLS circuit to ASA1 and Internet circuit to ASA2? Ideally, i want both circuits to connect to primary ASA5510 for automatic WAN failover. My concern is , if the primary ASA5510 fails which has WAN and Internet circuits connected , do i need to manually switch connection from primary to standy? The goal is to fully automate wan failover and asa failover .
View 5 Replies View RelatedI have a two fiber connection from our Central Office(6513) to Remote office (6509). I have a requirement that on the remote office if one of the fiber goes down, the second fiber should work as a failover. I am planning to use SUP720-3B SFP to connect to the CO.
Can I connet one fiber to Sup720-3b G5/1 & another fiber connection to G5/2? or Can I connet one fiber to Sup720-3b G5/1 & another fiber connection to G6/2? I am running EIGRP between sites. Any sample config.
sup-bootflash:s72033-pk9sv-mz.122-18.SXD7b.bin"
I have an ASA5520 in location A with an ISP connection and a matching ASA5520 in location B with a separate ISP connection. We have fiber connecting the two locations and vlans passing back and forth so I will be able to configure the failover via a vlan as well as extend the ISP's to each location via vlans. The Active/Active configuration with the multiple security contexts does not seem to be an issue but how is a redundant ISP configured in this mode?We want to have context A using the ASA in location A with ISP1 as the primary and failing over to ISP 2 in locaiton B We also want to have context B using the ASA in location B with ISP 2 as the primary and failing over to ISP1 in location A Would route tracking provide the desired result? Is there a better option?
View 1 Replies View RelatedI have a Cisco 8510msr that is connected back to back with a 7206vxr across a 155Meg connection.I receive lots of Output drops on the 7206vxr interface facing the atm switch. When I do the following command:-
kwdair9#sh atm int atm 1/0Interface ATM1/0:AAL enabled: AAL5 , Maximum VCs: 4096, Current VCCs: 27 Maximum Transmit Channels: 0Max. Datagram Size: 4528PLIM Type: SONET - 155000Kbps, TX clocking: LINECell-payload scrambling: ONsts-stream scrambling: ON797522 input, 881483 output, 203946630 IN fast, 223768062 OUT fast, 0 out dropVBR-NRT : 110288 Avail bw = 44712 <====
I only have 44megConfig. is ACTIVEkwdair9# I only get 44Meg of the available 155Meg.There is no QOS on the router and the only commands I can find that vaguely see that refer to QOS are on the ATM switch:-
atm address 47.0091.8100.0000.0007.0d87.b201.0007.0d87.b201.00atm router pnnino aesa embedded-number left-justifiednode 1 level 56 lowest redistribute atm-static?why this is acting like a DS3 link and not a 155Meg link?
What cable I need to connect two 2951 back to back through a HWIC-4T1/E1 card ?
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