Cisco WAN :: Reliable Static Routing Backup Using Object Tracking On 2800
Jan 29, 2012
I was configuring route tracking at a client with several sites to route across GRE tunnels and being able to detect a failure of the main site. To my surprise when configuring a 2800 series router (after sucessfully configuring a 1800 series on the same infrastructure), a 2821 with IOS 12.4(24)T2 IPbase, the commands for ip sla object tracking don't show up.The feature navigator says the router supports this, but it just won't take the commands (also tried older versions of the commands such as "ip sla monitor.." and "rtr .." to no avail).
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May 3, 2011
We have a few WAN connecting sites to ISP using BGP. we are looking at getting backup link for 1 site.
We have decide to use an IP WAN ADS L link. we will have 877 and 2800 for each link. from understanding, we have a static routing on IPWAN service. means when both BGP WAN and IP WAN connected to the ISP. ISP will use ADSL as primary ignore the BGP link. so other sites will see a BGP route coming from ISP via the ADSL link for this location.
So we have find a manuel solution, leave ADSL unplugged of power but setup same LAN ip address and connect the cable towards the core switch. when WAN link fail, switch on ADSL. So the static route will advertise to the rest of sites.
just want to know is there any auto solution can disable the ADSL link/ ppp link when the 2800/WAN route is up. and enable the ADSL port when the WAN is down. not sure if HSRP/backup interface/tracking will work? and how?
site office switch - > 2800 - > ISP - > ADSL -> ISP
(need this link to be backup and protocol down, so the ISP will not able to connect to this link and advertise as next hop)
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Feb 20, 2013
I am using a bunch of Cisco 1721 routers for my T1 lines. We recently purchased Digi cell modems as a backup for the T1. On configuring vrrp to work on both devices I discovered that IOS 12.3(6c) does not support the "vrrp track" feature. After reviewing the Cisco Feature Navigator I could not see an IOS that will support the vrrp object tracking. Is that correct? The routers have T1 WIC's installed. If it does work what is the latest IOS that will work on this end of life product?
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Oct 30, 2011
I'm going to replace a Cat6513 with a Nexus 7018. In my Cat6513, there are object tracking config as follows:
ip sla monitor 1
type echo protocol ipIcmpEcho 112.78.254.249
timeout 3000
frequency 6
ip sla monitor schedule 1 life forever start-time now
ip route 172.17.7.0 255.255.255.0 165.202.51.46 name VPN-1 track 123
Is there similar feature in Nexus platform? Because from Nx-OS command ref, I only found:
ip route ip-prefix/mask {[interface] next-hop} [preference] [tag id]
Seems can't associate a track object to a static route in Nx-OS?
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Mar 18, 2013
We have a Nexus 7010 running version 6.1(2).
I'd like to use IP SLAs and object tracking to define static routes for specific source/destination traffic across some WAN links we have. I've done this in IOS and it's worked fantastically, but I've not found where/how to do this on the Nexus 7010 platform (or any Nexus platform) as of yet. I could have sworn that this was going to be introduced in the 6.x code? Below is an example of how we do this in the IOS world:
track 11 ip sla 1 reachability
delay down 15 up 15
ip sla 1
[Code]....
Esentially this gives us the option of using a "failover" default route. I've attached a basic diagram to explain what we are trying to do with IP SLAs and object checking. The tracking should be configured against an SLA that uses icmp and the static routes should be configured against the tracking.
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May 25, 2013
I am trying to implement static route tracking on a Catalyst 3560G ( WS-C3560G-48PS, IOS version 12.2(35)SE5 and SW image C3560-IPBASE-M). The configuration is as follows:
track 101 rtr 1 reachability
!
rtr 1
type echo protocol ipIcmpEcho 10.199.101.2
rtr schedule 1 life forever start-time now
!
IP address 10.199.101.2 is reachable via ICMP (its the next-hop router).
The static routes configured are the following:
ip route 0.0.0.0 0.0.0.0 10.199.101.2 track 101
ip route 0.0.0.0 0.0.0.0 10.200.52.1 20
But only the secondary route(ip route 0.0.0.0 0.0.0.0 10.200.52.1 20) its being installed on the routing table by the switch.
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Aug 3, 2012
Is there a way to set static routes per VLAN?Example VLAN 100 sends all traffic to 192.168.1.1 and VLAN 200 sends all traffic to 10.1.1.1. (2800 Series RTR)I have 5 networks that have their own gateway to the Internet via satellite link. Those networks run over the same infrastructure on separate VLANs. They frequently send traffic to each other, which gets sent over a slow SAT link. I introduced a router to the network and would like to set all my hosts default gateway to the local routers sub-interface then have a static route that send all traffic that is not on one of my 5 networks back to that VLANs respective SAT modem to get routed out over the Internet.
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Oct 16, 2011
I currently admin a WAN link between two international sites. I have a 2800 at each end. The primary connection between the two sites is 20MB Ethernet PIP MPLS BGP circuit. I also have a pair of T1's in a PPP multilink that I switch over to in the event the primary circuit goes down. I currently am doing the switch over manually. It takes me about 15 minutes to complete it, but I know there must be a way to make this an automatic process.
So a couple questions:
1) Is there a way to create an "enhanced multilink" with the 2 T1's and the Ethernet circuit in the same bundle, in effect giving me 23MBps bandwidth while still being able to maintain connectivity if one of the 3 links goes down? This is my preferred solution
and if 1 is not possible then
2) Is there a way to configure the router so if the Ethernet circuit goes down, all traffic will be automatically directed over the T1's, and then come back to the Ethernet when it's back online?
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Sep 13, 2011
I need to implement the backup between two sites I have router 2800 which is having a point to point connectivity with the far end.At the far end there is no router ,only one firewall is there on that firewall one access-list is there to allow the traffic .To implement the back up link i have created a site to site vpn .But the problem is as soon as the tunnel is establised .For the time being i have removed by site to site config from both firewall.
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May 15, 2013
I am trying to set up my ASA5510 the fail over of ISP when it can't ping three different IP. I create three different tracking to three different IP using sla monitor & track rtr. But when I do
route isp2 0 0 yy.yy.yy.yy 50
route isp1 0 0 xx.xx.xx.xx 31 track 1
route isp1 0 0 xx.xx.xx.xx 32 track 2
route isp1 0 0 xx.xx.xx.xx 33 track 3
the last route will replace the previous two and only the last route command takes effect.Is there anyway I can set up the fail over to ISP2 only when it can't ping three different IP from ISP1?
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Aug 1, 2011
Site A, site B, site C, site D is connected using leased line each other. We are using Cisco 1800, 2800 and 2900. Each site also have Internet connection using ADSL connected to firewall, we are using pix 501 and ASA 5510.My question is, can i use the existing ADSL line to be use as a backup line if the leased line is down on any of the site??And i want it to trigger itself, once the leased line is down, the firewall UP the backup line? something like that..
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Oct 7, 2012
I have Cisco 2800 series router. When I am trying to write memory getting error message " Error opening flash:config-backup-1 (No more root directory entries available)" When there is simultaneous access to a router's NVRAM, we might encounter these errors. In order to clear the line the other user(s) is (are) connected on and free the NVRAM, issue the clear line command. But still getting the same error message.
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Apr 7, 2013
Does the ASA treat an object-group with a network-object containing a range of IP addresses as a netmask? For example, I can apply this configuration without the ASA throwing any errors though the configuration calls for a 'net mask':
object-group network test
network-object 192.168.0.0 192.168.63.255
?
network-object-group mode commands/options:
A.B.C.D Enter an IPv4 network mask
sh run ob id test
object-group network test
network-object 192.168.0.0 192.168.63.255
I found that in the documentation it requires a netmask as oppose to a range. Is this a bug in the code? I am running code version 8.0(5)23 on a 5520. If this is not a bug how does the ASA treat this type of configuration when applied to an access list? When I ran a quick packet trace and denied access from that range it looks like the ASA doesn't read that configuration properly.
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Jul 19, 2011
I am trying to change a static nat entry from this:
ip nat inside source list 1 interface Dialer0 overloadip nat inside source static tcp 192.168.0.246 25 interface Dialer0 25ip nat inside source static tcp 192.168.0.246 80 interface Dialer0 80ip nat inside source static tcp 192.168.0.246 443 interface Dialer0 443
to
ip nat inside source list 1 interface Dialer0 overloadip nat inside source static tcp 192.168.0.247 25 interface Dialer0 25ip nat inside source static tcp 192.168.0.247 80 interface Dialer0 80ip nat inside source static tcp 192.168.0.247 443 interface Dialer0 443
I have tried various methods from exec mode clear ip nat translation *
no ip nat inside source static tcp 192.168.0.246 443 interface dialer0 443 But I am getting cisco2800(config)#%Static entry in use, cannot remove.
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Dec 12, 2012
Looking to have an ASA5510 with two internet feeds. Moreover, I would like to have my static nat translations continue to work on the backup feed. I have outbound nat working, however I cannot get the inbound nat to work. I had this all figured out in 7.x but now with 8.x I cannot seem to get it working. If anyone has a 8.x example config.
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Oct 16, 2011
I have a asa 5520 with an outside and backup interface. I am trying to configure two static nat statements from the inside to the outside and backup interface. Here is what I have configured so far.
object network obj-10.1.1.254
host 10.1.1.254
object network obj-10.1.1.254
nat (inside,outside) static 172.25.10.3
I want to also use nat (inside,backup) static 172.25.10.3
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Feb 5, 2013
Any one know when object-group ACLs will be supported in cat4500 IOS-XE ?? Doesnt seem to be supported now.
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Jan 2, 2012
In cisco router 2911 how to creat a network object with port permission on ACL. herz what i have done but couldnt succeed in port 22 and 24 should be denied and rest all port services are allowed to outside interface. [code]
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May 29, 2013
I have started to use ip extended access-lists on several 3750X-switches to filter inbound and outbond traffic on the VLANs. But it seems that the use of object-groups is not supported, is this correct? Is it really no way to group different ip-addresses into groups and then use these groups in the access-lists?
I am running sw version 15.0(1)SE2.
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Feb 16, 2011
I have two layer 3 switches C3560 and C3750 Cisco switches with ios version "ipservices-mz.122-35.SE5".Now with the current ios version, these layer 3 switches are not supporting object group.so my question is , do i need to upgrade the ios, for this feature, if yes, which version ?
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Oct 5, 2012
I have already ordered a Cisco ISR 1921/K9. but as i read on Cisco website, it is written that Cisco 1921/K9 only support (IP SLA Responder) feature.
I don't know actually what is sla- responder. but our requirement is we will connect that Router 1921/K9 into 2-ISP links and i want to enable IP- SLA probes on that router so that it can track both the routes into those isp links. so my question is does CISCO 1921/K9 have the support for what i need ?How about Cisco 1921-SEC/K9 ?
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Dec 31, 2012
Can i use acl object group with wccp redirect list?My platforms are 6500 and isr 2921
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May 5, 2013
I am interested in the QuickVPN solution for a Mac.I am getting mixed messages in my searches.If not, what is the secure, reliable way to use an RV-120W with a Mac?
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Dec 14, 2011
Why Cisco 4500 R switch PBR tracking Command not working , I found just route-map next-hop ?
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Nov 7, 2011
I just tested IP SLA with tracking on a 3750 12.2(46)SE. And the configuration was simple enough and tested fine for redundant static routing: [code] Then I tried to do the same on a 3560 switch running 12.2(55)SE3. ip sla went in fine. But when I went to put in the track I was presented with "list boolean and" (for example) after the track and the identifier.I tossed in the ip sla "10" as the object. But shopw track shows the boolean AND as down. I don't get why the track feature is different in two switches so close in IOS version. How do I get the 3560 to track the ip sla as my 3750 does?
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May 6, 2013
I want to use 4506 to track link 1 so that if it fail the traffic will use link 2 to go to ASA firewall. Switch_1 and Switch_2 is configured to use VRRP where Switch_1 is the primary.Current configuration (which im not sure about it):Switch_1track 1 interface gigabitethernet2/3 line protocol.
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Feb 17, 2012
I will be doing some traveling this summer and need reliable access to the internet for my laptop, and smartphone if possible. What would be the easiest way to be connected anywhere? Most places I will be wont have any wi-fi signal at all.
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May 21, 2012
I have a DIR-655, hardware B1, firmware 2.03NA. Sporadically, generally after the router has been on for 24 hours, I lose wireless Internet (WAN) connectivity. I can still connect just fine to the router interface. And if I plug in hardwired Ethernet, I can access the Internet just fine.I previously had a DIR-615 in operation with no problems.
-ISP modem Motorola SB6121 (stand-alone cable modem)
-QoS/traffic shaping off; also disabled advanced DNS (tried OpenDNS as well as Comcast defaults)
-DNS relay enabled
-Using reserved IP addresses on the local network, all devices are set to DHCP
-Enabled/disabled UPnP/multicast
-Tried all firewall options, including disabling
-Wireless using Mixed 802.11n/g; tried channel width 20/40 and just 20. Disabled auto channel scan and forced to -ch11. No other wireless interfering. Using WPA2 only, AES, with a 63char key.
-Disabled WISH
-Disabled WLAN partition, WMM enable, short GI.
-Cat6 between modem and router
Again, hardwired LAN connection seems to be fine. I've already RMA'd the router once.When wireless Internet doesn't work, it seems to be all affected devices (iPhone/iPad/MacOS/WinXP/Roku).
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Apr 15, 2012
how do I get my hard drive to work thru my belkin router usb port?
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Sep 18, 2012
The layer 2 switches are connected to layer 3 Switch via trunks, and routing between layer 2 switch ports with configured SVI's on 3550. All working fine. Now I'm trying to configure routing between 2800 and 3550, I tried connecting both Straight Throught and Crossover cables to the 2800 Fa0/0 and Fa0/1 ports as well as the switchports on 3550
No switchport commands are configured however, the lights do not go on for both straight through or crossover cables. I tried connecting 1750 routers but same result. My goal is to have all the VLANS routed to the internet with configuring NAT translation the router.
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May 23, 2013
I need an 8 port switch to mange 6 web servers and while I haven't been able to decide whether or not I need a managed switch, I have recieved conflicting answers from sales reps with respect thier construction.In a 24/7 environment, is an SG100D-08 any different than a managed SG200D-08 switch in terms of the product components?Is the managed SG200D version any more reliable/dependable for 24/7 usage?
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Feb 5, 2013
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How can I get the absolute best, most reliable connection and speeds out of my router so we don't experience disconnects?I bought the RE1000 range extender... having installed it yet because the install CD that came with it is the wrong CD (It came with the E900 install CD... which is for a router)I bought the N600 USB adapter which I guess is supposed to update your wireless card for your laptop. I am using that but bars seem low..
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Apr 2, 2013
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