I have one Cisco router 3845 and one switch 6509, they have two links connected each other via OSPF, I want to have link 1 as high priority, and link 2 as low priority. When the link 1 is down, it can be kicked in to the link 2. How I can implement this setup.
View 8 RepliesWe have a 3845 router at one of our remote sites. We want to connect the router to our central office using the two gigabit ports. One link would be the primary and the other would be the secondary (backup).
The router is running EIGRP and the two ports would have different ip addresses. How can we set up the router to use gi0/0 as the primary port and gi0/1 as the secondary (backup) port? The backup port would only be used if there was congestion on the primary port or if the primary port went down. Is there a way to force the router to make the primary link the best route?
Remote Router Sample Config:!
int gi0/0
desc primary link to Central Office
ip addr 10.0.1.84 255.255.255.0
[code]....
i have two Cisco 3845 routers connected to 3 different ISPs ,
-ISP 1 with link bandwidth of 24 Mbps
-ISP 2 with link bandwidth of 16 Mbps
-ISP 3 with link bandwidth of 8 Mbps
i have a public AS from a ripe along with 2 Class Address (Public independent)
1) what is the best design and configuration to utilize the 3 Links ,outbound and inbound (since we have our public address along with AS) my boss told me,all These 3 links must be active
2)what is the recommended design and configuration for the whole topology , pls share the best gotchas
3)what is the need of iBGP?why we need it when we run bgp?
I m using ospf between HO and Branches for two links. branch router are 2811 and HO router 3845. when i enable ospf at branch i get all branch route like HO router and a default route. My requirement is each branch get only HO but no other branch. I have no default route.
I attached show ip route status for a branch router.. Why default route comes and why all branch's route come ?
I have the following setup, eBGP to the same ISP, iBGP inside the AS between the routers and 6509s
I would like to do the following, lets say I have 1.1.1.0.... 1.1.6.0
These are advertised by my 6509s through BGP. I would like to balance the traffic across both of the links, so inbound/outbound traffic would be
[code]...
I have an environment where i have two nexus 7010 switches, along with 2 nexus 5510's. I need to run OSPF as a layer 3 routing protocol between the vpc peer links. I have 1 link being used as a keep alive link, and 3 other links being used as a VpC link.
1) Is it best to configure a separate Vpc VLAN i.e 1010
2) Is it best to configure a vrf context keep-alive
3) just have the management address as the peer ip's.
If i look at the Feature Navigator , it says that IP Base Supports OSPF and EIGRP. But if i look at the Cisco Link it contradicts the Cisco Feature Navigator.
[URL]
if I have 6509-E with VSS-SUP720-10G and want to run OSPF and BGP on the Switch. What is the IOS i require? WIll IP Base Suffice or i need to take Advance or Enterprise Image.
I have an MPLS router that connects to the core network.This router distributes (per route maps) routes from OSPF into BGP and from BGP into OSPF.The OSPF Process conencts a 6509 to the 7206 MPLS router. There are some routes in the OSPF process that I have filtered out of the 6509. They do not show up inthe 6509 at all and this is the only way they can be getting into the 7206.Checking the 6509 database, this route is gone, but it stays in the 7206 until I clear the route manually. The result is the route still gets distributed into MPLS. [code]
One thing to note, there are two possible OSPF paths the route gets into OSPF, one of them, the route is filtered with distribute-list on the 6509, which means it is still in the database, so it is still in the 7206 database, and still get distributed into BGP on the 7206, correct?
our backbone (6509) is connected to atm backbone (nortel passport) those are connected through giga Ethernet interface and running ospf in area 0. One week ago we lost the ip connectivity between those backbones, the interfaces were in up but the neighbor relation fail and it was kept in LOADING STATE, according we the logs the neighbor relation fail because a BAD LSA was received (error messages %OSPF-4-ERRRCV:Bad LSU adv and %OSPF-4-BADLSATYPE:Invalid lsa:Bad LSA chksum Type 5 were received during the outage)We check in cisco and this is quite normal behavior if we receive a bad LSA but the customer is asking why we have the same error message for long time and we didn't lost the neighbor relationship.
how many bad lsa we can receive before to lost the neighbor relationship.We receive two errors messages for bag lsa.. [code]
I have 2 ASBR routers, AGFR01RTR03 and AGFR02RTR03, performing OSPF to OSPF redistribution in both ways for the same ***. They also do summarization for our private addressing scheme. It is all working just fine for that part (neighbors, summarization, redistribution).
AGDC01RTR01 --- AGDC02RTR01 (OSPF 1000 ABRs)
| |
| |
AGFR01RTR03 --- AGFR02RTR03 (OSPF 1000 / 53 ASBRs)
Let's focus on AGDC01RTR01 with a specific entry here (IP subnet is fake) :
Routing entry for 1.1.1.0/25
Known via "ospf 1000", distance 110, metric 300, type inter area
Last update from 10.2.244.76 on GigabitEthernet5/1, 1d03h ago
Routing Descriptor Blocks:
* 10.2.244.76, from 10.2.1.249, 1d03h ago, via GigabitEthernet5/1
Route metric is 300, traffic share count is 1
[code]...
Currently the OSPF network consist of 2 segment route via static route.One is AREA 0 and another AREA 10.Both network are seperate entity, only static route to route between 2 networks.But the static route do not provide the dynamically and flexibility, I plan to run routing between 2 networks via VLAN160 and VLAN162.
I still want to manitnace it was 2 different OSPFrouting domain.Can I run OSPF with differrent OSPF porcess ID?
Is there any physical or technical diferrences between PWR-3845 AC/2 and PWR-3845 AC? We are trying to order replacement parts and wondering if PWR-3845 AC is for one power supply and AC/2 means you get two with one order?
View 1 Replies View RelatedIs there any physical or technical diferrences between PWR-3845 AC/2 and PWR-3845 AC? We are trying to order replacement parts and if PWR-3845 AC is for one power supply and AC/2 means you get two with one order.
View 1 Replies View RelatedI am running IPv4 with OSPFv2 currently. However, I planed to deploy IPv6 in my network. Is it possible to deploy V6 with OSPFv3 without affecting current network traffic in V4?
View 7 Replies View RelatedI currently have a couple of 6509 chassis (router/switches) with the following hardware blades:
x3 48 ports
x1 NAM
x2 Sup720
Running 12.2(18)SXF3
I am keeping the four Sup720 modules and have purchased new versions of the others blades including two new 6509-E chassis?Can I take my stand-by Sup720 out of the production machine and insert it into the new chassis?
I currently have a couple of 6509 chassis (router/switches) with the following hardware blades:
x3 48 ports
x1 NAM
x2 Sup720
Running 12.2(18)SXF3.I am keeping the four Sup720 modules and have purchased new versions of the others blades including two new 6509-E chassis. Can I take my stand-by Sup720 out of the production machine and insert it into the new chassis?
I have configured four E1 links between two locations on my 3745 using WIC-2T cards. At both ends all the serial links are configured as ip unnunmbered fastethernet 0/0 encapsulation ppp OSPF is enabled without CEF I would like to know how load balancing will occur in this scenario?Will all my links be utilised at the same time? Will multiple links be used only when the need (in terms of bandwidth) arises?
View 3 Replies View RelatedI will be configuring all the MEC links on my 6500 VSS chassis tomorrow morning and one thing I am a bit confused about.According to the best practices guide they suggest you configure all etherchannels trunks to be in desirable mode. All the trunks are using LACP active - active right now but that's only to one chassis.Should I change all my MEC etherchannel trunks to desirable mode or just leave them active-active?
View 6 Replies View RelatedI 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.
View 7 Replies View RelatedI got a Cisco 870 router. running C870-ADVSECURITYK9-M), Version 12.4(15)T7, does this support two link from different ISP.
View 2 Replies View RelatedI purchased a Cisco 520 and am trying to set it up on my home network.Its ADSL PPPoA for WAN.I am trying to setup 2 LANS. One General Network,One DMZ for webhosting.Now, since this router has 4 ethernet ports, i assumed i did not need VLANS. Except when i try configure an interface with an IP address i get this error: % IP addresses may not be configured on L2 links.Now. Ive looked around on the internet about this error. And it seems that since these interfaces are not Layer 3 interfaces,they need to be associated with VLANS.This would be OK. Except this requires an IP address on an interface on the router! Back to square one.
View 6 Replies View RelatedThe regular problem with the LMS topology and WAN Links when you see the branches are disconnected from the HQ BUT in my case the branches are already connected via Layer2 links but unfortunately some intermediate layer2 modem/switch exist in some branches which prevent CDP discovery but you will find both HQ and branch router in the same subnet .
View 1 Replies View RelatedI 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.
a few of my links (all BT ADSL on Cisco IAD887s) suffer from drops in PPP, the physical circuit doesn't drop out, just the PPP and LCP
000489: Aug 12 12:13:22.085: Vi2 PPP: Missed 5 keepalives, taking LCP down
000490: Aug 12 12:13:22.085: Vi2 PPP DISC: Missed too many keepalives
000491: Aug 12 12:13:22.085: Vi2 PPP: Sending Acct Event[Down] id[19]
000492: Aug 12 12:13:22.085: Vi2 IPCP: Event[DOWN] State[Open to Starting]
000493: Aug 12 12:13:22.085: Vi2 IPCP: Event[CLOSE] State[Starting to Initial]
We have a site to site VPN from one client location to our production center in offshore. At the client side we have a PIX 515 used for the tunnel. Since the client requires a backup VPN over a different ISP we will have to add the ISP to the same PIX and then create the secondary VPN.
how we can acheive two ISP's on one PIX since only two Ethernet ports are availble.
PIX Details:
Cisco PIX IOS 7.2(2)
PIX-515E, 128 MB RAM
i have two links between two sites in my company. The second one is new and uses IPVPN connection. I am searching a way to use both of them. I don' t want to load balance. I want to send some protocols from the first link and some other from the second. ex. rdp from link 2 and everything else from link 1
View 3 Replies View RelatedAny good way of depicting serial links in Visio? Manually drawing is pretty clunky and quick searches in google isn't turning up much.
View 10 Replies View Relatedcan a Cisco 2811 router bundle 2 or 4 ADSL lines ? Reason am asking, we need a device that would be able to bundle 2 or 4 ADSL lines from ISP so that we can you it as backup link in-case the company Internet link does down.
View 5 Replies View RelatedI am using Cisco 861 router for simple network access. I have configured the router correctly with support from few folks of this community but now I am facing a different problem. I am able to ping, tracert and nslookup any internet destination. I am also able to brows secure sites like [URL] but normal URLs like [URL] is not working. I have tried to debug IP TCP Packet Port 80 but it is not showing any results.
View 2 Replies View RelatedI 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 RelatedI work with the topology view in LMS 4.1. I can see all the links between the differrent switches (N7K, 3750, 3040).I miss only the links between the different N7K's. This links have one special thinks: they are configured as " rate-mode dedicated force" In the N7K cli this interfaces are displayed with the SN too.
sw-bb13# show cdp ne.The links to sw-bb11 and sw-bb21 are not painted in the topoloyview.
Using Topology I can show device view from all my managed VTP domains. I don't understand why all links are "not in network"!?
View 3 Replies View RelatedWe suffer some problems with our remote 2811, that has two WAN links (two different ISP) - we cannot get access to both of WAN at the same time.
At first, the aim was to load balance the traffic between wan links: at first we tried to use OER, but users complained about instable internet connectionthen we tried PBR + NAT Generelly we have just the same scheme as [URL] : dual WAN linksPPTPPPPoE over ADSLequal static routesNAT using route map The problem itself: When both links are up, the 1st WAN is pingable, and the 2nd is notWhen the 1st link goes down the 2nd becomes pingable and accessible and vice versa. When I disabled the CEF, the 1st was still pingable and the 2nd became pingable too, but very unstable