Two VRF to swap roads... except by default

I have two VRF configured on my EP (unless GNS3) routers. The original installation is quite simple, as follows:

IP vrf VRF_A
RD 100: 1
Route target export 100: 1
Route-target import 100: 1
!
IP vrf VRF_B
RD 100:2
Route target export 100:2
Route-target import 100:2
!

I want these two VRF to swap roads, except for their routes by default. So, I did the following:

IP-prefix list blockDefault seq 5 deny 0.0.0.0/0
IP-list of prefixes blockDefault seq 50 allowed the 0.0.0.0/0 32

ALL_EXCEPT_DEFAULT_VPN_A allowed 10 route map
match ip address-list of prefixes blockDefault
Set extcommunity rt 100:10

ALL_EXCEPT_DEFAULT_VPN_B allowed 10 route map
match ip address-list of prefixes blockDefault
Set extcommunity rt 100:20

IP vrf VRF_A
RD 100: 1
ALL_EXCEPT_DEFAULT_VRF_A export map
Route-target import 100: 1
Route target export 100: 1
Route-target import 100:20
Route target export 100:20
!
IP vrf VRF_B
RD 100:2
ALL_EXCEPT_DEFAULT_VRF_B export map
Route-target import 100:2
Route target export 100:2
Route-target import 100:10
Route target export 100:10
!

Now, I find that even thoughI can see the routes of VRF_A in VRF_B, I'm actually losing roads that were once in the routing table VRF_A (and vica versa).

Can someone advise if I have the above correct Setup?

Hi Steven,

the problem with your route-is card, who 'set extcommunity rt' clause without the "additive" keyword will replace all existing RTs (100: 1 / 100:2 as well) with the new RT.

There are several ways to accomplish the task, for example:

 ip prefix-list DEFAULT-ROUTE permit 0.0.0.0/0 ! route-map ALL_EXCEPT_DEFAULT_VRF_A permit 10 match ip address prefix-list DEFAULT-ROUTE ! do nothing route-map ALL_EXCEPT_DEFAULT_VRF_A permit 20 ! every other prefix set extcommunity rt 100:10 additive ! ip vrf VRF_A rd 100:1 export map ALL_EXCEPT_DEFAULT_VRF_A route-target import 100:1 route-target import 100:20 route-target export 100:1 ! (...) 

Result:

 R1#show ip bgp vpnv4 all 0.0.0.0 0.0.0.0 | i VRF|RT Paths: (1 available, best #1, table VRF_A)       Extended Community: RT:100:1 Paths: (1 available, best #1, table VRF_B)       Extended Community: RT:100:2 R1#! a prefix originated in VRF_A R1#show ip bgp vpnv4 all 172.16.12.0 | i VRF|RT Paths: (1 available, best #1, table VRF_A)       Extended Community: RT:100:1 RT:100:10 Paths: (1 available, best #1, table VRF_B)       Extended Community: RT:100:1 RT:100:10 R1#! a prefix originated in VRF_B R1#show ip bgp vpnv4 all 172.16.13.0 | i VRF|RT Paths: (1 available, best #1, table VRF_A)       Extended Community: RT:100:2 RT:100:20 Paths: (1 available, best #1, table VRF_B)       Extended Community: RT:100:2 RT:100:20

HTH

Rolf

Tags: Cisco Support

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    3 make an another VLAN 70 for your network 24.70.  Assign the IP 192.168.70.1 to this VLAN.  This will be the default gateway for the network.  Repeat for however many VLANS / networks you want to.

    4. create a separate VLAN for his own 'bubble' network between the switch and the upstream proxy server.  (Lets call him a dummy VLAN 100 with an IP range x.x.100.x 29.  It can be just a little/29 block or something or 24 if this is confusing. Configuring the ports a few ports 'access' for this VLAN for that no marked traffic pass over this network.  Set x.x.100.1 to your Proxy Server and x.x.100.2 to your switch, then make sure you have directions on both sides about where traffic should go.

    5. save your configuration so that you have to rebuild it after a reboot.  :-)

    It will be best to set your expecations about it.  You want realistic during a weekend/maintenance window.  ARP cache and other issues can make for some downtime.  In addition, there are certainly other ways to do it, but that may be hurtful on the road when you need to increase or scale.  Two years on the road someone wondered why a default gateway is on a few eccentric IP, or there are errors of routing intermentent, etc..

    Powerconnect worldwide, just be clear what is the difference between a port of "access" to the port of 'general', and are a port 'trunk '.  Conditions may be different from the Lim to make, and if one comes to tell the world of Cisco, this may be a little different.

    Finally, don't forget to come up with a good procedure for this during your maintenance window.  Come up with a good plan documented and so well thought out, when run you it, it will be nothing more than a task in office project.

  • True object of road-identifiers

    Hi all

    I have a small question about the route identifiers.  In a cloud of PSI using MP-iBGP VPNv4 for exploitation of customer routes, must the route identifiers on different routers EP (each repair the same client at different locations) have the same identifiers of road on the different PE routers VRF?

    Secondly, the road-identifiers are transported in MP - BGP VPNv4 commercials?  I guess that sums it up to... What is the real purpose of the road-identifiers.

    Any ideas would be very useful!

    David

    Hello David,.

    do the route-distinguishers on different PE routers (each servicing the  same customer at different locations) need to have the same route  distinguishers on the VRFs of the different PE routers?

    Route identifiers (RDs) values can be largely arbitrary. Must be unique for different VRF on the EP even, but for two correspondents VRF on two different PEs, they may or may not be the same, it does not really matter. In simpler deployments, they may be the same, but in the largest virtual private networks, or more complex, it is more likely that they differ.

    Secondly, are route-distinguishers carried in MP-BGP VPNv4 advertisments?

    Yes, they are, in the context of network addresses al who are in a particular VRF and are advertised to other PEs.

    Let me explain the process of advertising routes to one PE in the other and let me start first by talking about the other attribute configured in the VRF - target of the road (RT).

    The RT is a BGP attribute of a route - technically, it is an attribute of the enlarged community. Be an attribute means that this value is a property of the road which specifies how it should be treated, but is not a part of the network address of the road or the mask. It is included with the announcement of this network to a BGP peer but similar to other BGP attributes (next hop, and preferably local, metric AS_PATH, etc.), it's just a property of the announced network, not a part of the address. Some BGP attributes need not always to be present, or may be present multiple times in a update for a road. The RT is especially used to say in what VRF the particular route can be imported. Say that a road has an export RT to 1:1 and 1:2 means that the road can be imported to a VRF that matters with 1:1 or 1:2 routes.

    The presence of the RT and the possibility of having several RTs for a single update allowing great flexibility in design with several places MPLS VPNs and the partial visibilities between them. However, considering only the RTs do not.

    Consider two VRF on a single router, V1 and V2, each of them containing a single network 10.0.0.0/8. For the moment, assume that there is no concept of Dr. If BGP sends the roads of this router to a peer, he always sends them in a certain order. Suppose that the first flights sent are those of a VRF, say V1, then roads since a different VRF, say V2, are announced.  V1 use RT to 1:1, V2 use RT to 1:2.

    Now, imagine how BGP updates would look on the wire: firstly, an update comes, saying that there is a network 10.0.0.0/8 valued RT 1:1.  What would the router of neighborhood? She would put the route in the corresponding VRF V1. Now, a second update is available in (or a second entrance to the single update is transformed) and guess what - it is said that there is the same network 10.0.0.0/8, just with the RT 1:2 the value. If the neighborhood router, how? It would consider this second update to be a replacement of the previous update - the same network, but different attributes. So, it would delete the 10.0.0.0/8 network of the VRF V1 and add it to VRF V2!

    This would happen because for BGP, the network and its subnet mask were key in its database. An update of a network is carried out simply by sending the update on this network once again, with the new attributes specified explicitly. There is no need to remove first the road. And because BGP does not see the difference between the network 10.0.0.0/8 of V1 and V2 10.0.0.0/8, it merges because he thinks that the information on the same network just updated.

    This was RD comes in - by extending the official network for all roads address in a particular VRF using a single value. If V1 has the RD also set to 1:1 (it may very well be different from RTs and generally that is) and V2 RD 1:2 the value, then the road to V1 is announced as 1:1:10.0.0.0/8 while the same path of V2 will be announced as 1:2:10.0.0.0/8. For BGP, it is now clear that these two networks is not the same. The trick here is to use the RD to temporarily extend the IP addresses of the network in a VRF with unique values to work around the BGP networks identical-looking attitude. However, the RD is not used to sort routes in different VRF receiving them through BGP and exists only within the communication of the BGP.

    So said RT in can VRF has road and eventually will be imported.  RD support BGP understand that this a VRF X network is not the same as the network X from a different VRF. Both RT and RD have the same format, but it is their only similarity. RD must be present only once in each VRF on a simple PE and must be unique. RT must be present at least once in each VRF and does not need to be unique (if VRF route leaking is desired). RD becomes part of the network address in the BGP updates, RTs are transported as attributes of these networks. RDs are never used to sort the routes between VRF - that is the purpose of the RTs. This is also the reason why the RD may or may not be the same in the two corresponding VRF on two different PEs - in fact, it does not matter.

    Please feel welcome to ask for more!

    Best regards

    Peter

  • Network configuration / routing / two network interface cards / NAT - leased / dedicated Dell R210 running VMware ESXi 5.1.0 build-799733

    Network configuration / routing / two network interface cards / NAT - leased / dedicated Dell R210 running VMware ESXi 5.1.0 build-799733

    Hello

    I'm trying to understand how to configure a dedicated server of Dell R210 rented running VMware ESXi 5.1.0 build-799733

    This dedicated server is rented www.online.net and sits somewhere in France. One of its network adapters have an IP public 62.210.177.20x. The other NIC is here, but I do not understand how it is configured. According to the www.online.net portal, the other NETWORK card has or should have an IP 10.90.116.20x. And I am obviously set up is to have some virtual machines running and be able to access the Internet. I have access to the console of the server Dell through iDRAC and since I could see, one of the network adapters in the IP is 62.210.177.20x defined, and the other has been shown out of service. I managed to make it appear the other interface but I cannot find anywhere how to assign the IP address 10.90.116.20x to this 2nd network adapter. But then again I don't even know if I should or if I need to assing a IP address to this 2nd network adapter. What is the cable connected even for this 2nd NIC? I do not know. Should it be - I'm not either. I don't know French and manuals/instructions on www.online.net are in French. I can try an online translator, but I don't think that what I'm looking for is explained. How do I get this set up? I have to do something about the ESXi on the server console? This interface 2nd should be in place, or it must be down as if it was originally? Yesterday after watching someone videos on YouTube, I added the second virtual switch and moved the virtual hosts of this switch 2 and he entrusted the 2nd NIC. But that 2nd NIC had a red X next to it probably indicating that it was disconnected the 2nd form virtual switch. Today and now I have managed to access the ESXi console server through iDRAC, I bring the 2nd NIC, and now both network adapters are assigned to the virtual switch 1st . But I think that a NIC should be attributed to a single switch and the other card NETWORK on the 2nd switch. I'm just a desktop guy with enough knowledge to be dangerous J if you / someone put in steps how and where to set them up it... PLEASE

    Thanks in advance

    cweks

    ~ # vmware - v

    VMware ESXi 5.1.0 build-799733

    ~ # esxcfg - road

    VMkernel default gateway is 62.210.177.1

    ~ # esxcfg-vmknic-list

    Interface Port Group/DVPort IP IP family address Netmask Broadcast MAC address MTU TSO MSS active Type

    vmk0 management network IPv4 62.210.177.20x 255.255.255.0 62.210.177.255 d4:ae:52:cb:bb:84 1500 65535 true STATIC

    vmk0 networking fe80::d6ae:52ff:xxxx:bb84 64 d4:ae:52:cb:bb:84 1500 65535 true IPv6 STATIC, PREFERRED

    Portal www.online.NET--information

    NORMAL 1 ready 62.210.177.20x xxx.domain.eu.       D4:AE:52:AB:BB:84

    2 PRIVATE loan 10.90.116.20x d4:ae:52:ab:bb:85

    http://wiki.hetzner.de/index.php/VMware_ESXi/en#Network_configuration

    Network configuration

    • VMware vSphere Hypervisor is an "operating system" for pure virtualization and support NAT or routing. Therefore, only a real bridge configuration can be used.
    • To use a subnet additional IP must be configured as a router VM.

    If I understand the above, I need to show some VM and set up as a router? If the virtual machine that will act as a router must have two network interfaces, where it is connected to a switch and the other to the other switch network card. Am I do? The YouTube video that suggested, but I thought that maybe / somehow ESXi can route packets between the two network cards, but from what I read, ESXi can route packets. Do I need to order an additional / extra / 2nd IPv4 address so that it can be assigned to the interface of the router?

  • Routing between two network cards

    I have 8 fiber switches that are configured to use a private network for management.

    The subnet is 192.168.8.0/24.

    I have a W2K3 (SERVER A) server with two NICS, a NIC (192.168.8.1) is attached to

    the 192.168.8.0 subnet and the other (192.168.100.14) NETWORK adapter is attached to the subnet 192.168.100.0/24.

    I put up two persistent routes of road between these NICS using the following commands:

    Pei route add 192.168.8.0 mask 255.255.255.0 192.168.100.14

    Pei route add 192.168.100.0 mask 255.255.255.0 192.168.8.1

    I have an other W2K3 server (SERVER B) with a single NETWORK (192.168.100.12) card that must be able

    to connect with the fiber switches via tcp/ip. Packets should be routed to this server.

    On that I put in place a permanent route:

    Pei route add 192.168.8.0 mask 255.255.255.0 192.168.100.14

    Everything works very well.

    (Assumes that the SERVER-A and SERVER B are now turned off)

    I'm trying to reproduce this on my VMware ESX Server 3.5upd3.

    ESX server has two NICS, one attached to each of the subnets. I create a virtual machine to replace SERVER-a

    with the same number of network cards and the same IP addresses.

    I then create routes as follows:

    Pei route add 192.168.8.0 mask 255.255.255.0 192.168.100.14

    Pei route add 192.168.100.0 mask 255.255.255.0 192.168.8.1

    PROBLEM: as soon as I add the second route I can no longer ping any server on the 192.168.100.0 subnet.

    This also causes connections to last very long.

    Do I need to implement routing between network adapters ESX scale to make this work?

    If so maybe want the command look like? If not, what could be my problem?

    Thank you for the helpful answers

    If you want to configure your machine as a router, you will need to notify the router is the next hop.  Now, the next machine break is its own interfaces, which will not work.  And since you are running some sort of routing protocol, provide two solutions to exit the server is not a good idea, because he doesn't know that one to use.  It will use 1 for some and another for some.

    Do what you intend (or I think you intend), you must delete the static routes and choose a default route, which will be your next jump.  This should be another router in your environment.  Then, the other servers that you want to route via ServerA, ServerA interface on this segment would remind you.

    Hope that makes sense.

    -KjB

  • How can I reset a default (empty) table call other than nodes?

    I used the reset all failing to invoke the node and the specific call node in order to reset the two tables in my Subvi each time the Subvi is run in my program (main VI). I use the Subvi perform steps, but the steps I take continually stack on the other. I have these as outputs wired berries so I don't think I can grab an empty array and call her nodes are enabled (and no code return error!) whenever the Subvi is executed, but these two paintings is not reset to their default value, empty values at the beginning of each passage. All ideas are welcome; I appreciate your help. Thank you!

    I managed to get almost what I wanted by replacing the nodes of comments that I used (to build the two tables), with offset, and then initializing registers Maj records at the beginning of the program. The problem there was that the encoder I used for the measurement of the angle would start up where it left off (at 400 degrees rather than 0, even if it was a new set of data). On the other hand, he deleted the previous data set, which is what I wanted. I think I'm able to work with it; The first measure can be 0, so I just need to use the last measure known as an offset or something... Suggestions are always welcome; Thank you all for your time!

    Edit: For the sake of simplicity I just moved initializers of the nodes of the property to the farthest loop and it does the same thing.

  • MY CANON OF DEFAULT PRINTER NOT

    I run on WINDOWS 7. I HAVE 2 PRINTERS.

    1 HP PRINTER ALL IN ONE THAT IS MY DEFAULT PRINTER - NO PROBLEMS WITH THIS ONE

    2. A CANON PRINTER I USE IT TO PRINT PHOTOS - NOT USED VERY OFTEN

    PROBLEM - WHEN I TURN FIRST OF ALL, ON MY LAPTOP, MY PRINTER CANON OPENS AUTOMATICALLY.

    I'M NOT COMPUTER SAVVY SUPER, SIMPLE STEP BY STEP INSTRUCTIONS TO PREVENT THAT WOULDN'T APPRECIATED GRATEFULLY.

    Thank you

    CONCETTA

    Hello Concetta,

    Thank you for visiting Microsoft Community.

    As I understand it, the problem with you use two printers. HP printer is the default printer.

    Normally, this would happen if the Cannon printer is enabled in the list of startup items. I suggest you follow the steps below and check if it helps.

    1. Right-click on the Windows startup icon and choose Task Manager.
    2. Go to the Startup tab.
    3. Disable canon printer is located.
    4. Apply the changes.

    I hope this helps. Please do not respond to other requests on this.

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