why don't we use wildcard everywhere?

kobemkobem Inactive Imported Users Posts: 47 ■■□□□□□□□□
for example we use them in AcLs and in OSPF but
not in EIGRP , IGRP ?

(i ask this because maybe we want to control all bits everywhere

Comments

  • steve-o87steve-o87 Member Posts: 274
    kobem wrote:
    for example we use them in AcLs and in OSPF but
    not in EIGRP , IGRP ?

    (i ask this because maybe we want to control all bits everywhere

    You can use wildcard masks with EIGRP - you will learn this as you progress in your Cisco studies. IGRP cant use them because it is classful and therefore doesn't have any concept of VLSM. icon_study.gif

    It seems like your trying to jump to all the advanced stuff before you know the basics. Have a read of these links:
    EIGRP
    IGRP

    Google is also handy! icon_thumright.gif
    I am the lizard King. I can do anything.
  • dmafteidmaftei Member Posts: 83 ■■□□□□□□□□
    kobem wrote:
    for example...
    Beacuse different things were implemented by different people, and they made different design decisions.
    BSEE, MSCS
    www.maftei.net
  • EdTheLadEdTheLad Member Posts: 2,111 ■■■■□□□□□□
    steve-o87 wrote:
    IGRP cant use them because it is classful and therefore doesn't have any concept of VLSM. icon_study.gif

    It really doesnt have anything to do with vlsm, its just developers choice.

    Imagine i have the following:

    int s0/0
    ip address 10.5.0.1 255.255.255.0
    int s0/1
    ip address 10.5.1.1 255.255.255.0

    router igrp 1
    network 10.5.0.0 0.0.255.255

    There is no vlsm here,but it cannot be implemented because the of the developers choice to use a classful boundardy even though a classless network assignment would work.
    Networking, sometimes i love it, mostly i hate it.Its all about the $$$$
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