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  1. #1

    Default back-up wan connection


    we had a wan connection using globe line and pldt . Im using static routing protocol my globe line wan connection I make it a back-up so I put an administrative distance 50 so the prioritise the pldt connection when the pldt lan goes down then globeline will not auto matically up...
    what could be the sulution...

  2. #2

    Default Re: back-up wan connection

    load balance it since you are paying for both PLDT and Globe monthly.

  3. #3

    Default Re: back-up wan connection

    sir,

    who will be the one who make the load balance in my side or in the globe and pldt... this the scenario in our main office when the pldt was down the create a loop the globeline will not take over automatically what I do I issue shutdown in the serial wher the pldt connected..


    thnks

  4. #4

    Default Re: back-up wan connection

    the switch will take care of that not PLDT or GLobe....

    you have two dsl connections... your router/switch should have 2 wan ports then the router/switch can load balance it

  5. #5

    Default Re: back-up wan connection

    .....nge unsa mani broadband hoarding?.......hehehe peace........prime down ibto pldt?........corporate account na?.........

  6. #6

    Default Re: back-up wan connection

    dili dsl connection vpn, the other branch was n manila and also have two wan connection via serial , pldt and globe lines if ma down ang pldt dli mo auto route sa globe nsa kulang sa config sa router. static ako gigamit....

  7. #7

    Default Re: back-up wan connection

    Sir Twin,

    Where is the network?

    If the manila branch has 2 DSL connection you need a load balancing router so that if 1 DSL connection fails the other will still be useful

    http://www.costcentral.com/proddetai...67773/froogle/

  8. #8

    Default Re: back-up wan connection

    sir, im not using a dsl connection IP VPN ang connection....

    thnks

  9. #9

    Default Re: back-up wan connection

    sir, im using a cisco router 1700 model

    this the ip add:

    serial pldt manila = 192.168.12.1 then ang sa pldt nga serial 192.168.12.2
    fastehernet cebu = 192.169.12.1
    serial pldt cebu= 192.167.12.1 then ang sa pldt serial 192.167.12.2
    fasthernet cebu = 192.166.12.1

    serial1 globe manila = 10.0.12.1 then serial globe 10.0.12.2
    fastethernet manila = 10.0.13.1
    serial1 globe cebu = 10.0.11.1 then serila globe 10.0.11.2
    fastethernet cebu = 10.0.10.1

    my static config

    manila= ip route 192.169.12.1 255.255.255.248 192.168.12.2



  10. #10

    Default Re: back-up wan connection

    edsel, this explanation is quite lengthy but i hope you'll find something useful. a solution perhaps to make your network running at all times!

    the configurations below are from a test-lab.

    ************************************************** ********


    first, we will try to analyze what happens when a link goes down and how static routing recovers from such event. no back-up links are configured yet in order to understand carefully the behavior of static routing.


    topology:

    cebu ------ pldt ----- manila


    in this topology, your private networks are connected via pldt-backbone (mpls-vpn) network and are infact, a part of their own network. this is different from getting a dedicated leased line where the service provider only gives you layer 2 connectivity such as frame-relay or ppp.



    *****************
    cebu and manila routers are configured as follows;
    (pldt router configuration is not of a concern to this scenario, thus we don't need to show it here)


    cebu#sh run
    !
    hostname cebu
    !
    ip subnet-zero
    !
    interface Loopback0
    ip address 192.166.12.1 255.255.255.0
    !
    interface Loopback1
    ip address 10.0.10.1 255.255.255.0
    !
    interface Serial0
    ip address 192.167.12.1 255.255.255.252
    !
    ip classless
    ip route 10.0.13.0 255.255.255.0 192.167.12.2
    ip route 192.168.12.0 255.255.255.252 192.167.12.2
    ip route 192.169.12.0 255.255.255.0 192.167.12.2
    !
    end



    manila#sh run
    !
    hostname manila
    !
    ip subnet-zero
    !
    interface Loopback0
    ip address 192.169.12.1 255.255.255.0
    !
    interface Loopback1
    ip address 10.0.13.1 255.255.255.0
    !
    interface Serial0
    ip address 192.168.12.1 255.255.255.252
    !
    ip classless
    ip route 10.0.10.0 255.255.255.0 192.168.12.2
    ip route 192.166.12.0 255.255.255.0 192.168.12.2
    ip route 192.167.12.0 255.255.255.252 192.168.12.2
    !
    end


    note: frame-relay is not necessary to be configured here, we are only after the behavior of static routing. results would still be the same even if frame-relay technology is used for your point-to-point links.

    ip classless' command changes the behavior of your router to classless routing. in classless routing, routes are matched to the longest network bits (longest match). a host route with a mask of 255.255.255.255 will be the most preferred.

    ip subnet-zero command allows your router to use subnetwork addresses with zero bits.

    ********************
    routing tables of cebu and manila routers after intial configuration


    cebu#sh ip route

    Gateway of last resort is not set

    192.168.12.0/30 is subnetted, 1 subnets
    S 192.168.12.0 [1/0] via 192.167.12.2
    S 192.169.12.0/24 [1/0] via 192.167.12.2
    C 192.166.12.0/24 is directly connected, Loopback0
    192.167.12.0/30 is subnetted, 1 subnets
    C 192.167.12.0 is directly connected, Serial0
    10.0.0.0/24 is subnetted, 2 subnets
    C 10.0.10.0 is directly connected, Loopback1
    S 10.0.13.0 [1/0] via 192.167.12.2


    manila#sh ip route

    Gateway of last resort is not set

    192.168.12.0/30 is subnetted, 1 subnets
    C 192.168.12.0 is directly connected, Serial0
    C 192.169.12.0/24 is directly connected, Loopback0
    S 192.166.12.0/24 [1/0] via 192.168.12.2
    192.167.12.0/30 is subnetted, 1 subnets
    S 192.167.12.0 [1/0] via 192.168.12.2
    10.0.0.0/24 is subnetted, 2 subnets
    S 10.0.10.0 [1/0] via 192.168.12.2
    C 10.0.13.0 is directly connected, Loopback1


    both routers have complete routes for each repspective remote local area networks

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