Wildcard masks, a question when using with OSPF and EIGRP

privatejohnson

Question, I am trying to run OSPF in my lab, 5 routers. I looks like so.

RA

FA0/0 - 10.1.1.1/24 - Connect to RB FA0/0
FA0/1 - 192.168.1.1/24

RA OSPF Config

router ospf 100
net 10.1.1.1 0.0.0.0 area 0

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RB
FA0/0 10.1.1.2/24 - Connects to RA FA0/0
S0 - 10.1.2.1/24 - Connects to RC S1 - DCE side
S1 - 10.1.3.1/24 - Connects to RE S1 - DCE side

RB OSPF Config

router ospf 100
net 10.1.2.1 0.0.0.0 area 0
net 10.1.3.1 0.0.0.0 area 0
net 10.1.1.2 0.0.0.0 area 0

---

RC
S0 10.1.3.1/24 - Connects to RD S1 DCE side
S1 10.1.2.1/24 - Connects to RB s0 DTE Side

RC OSPF config

router ospf 100
net 10.1.2.2 0.0.0.0 area 0
net 10.1.4.1 0.0.0.0 area 0

---

RD
S0 10.1.5.2/24 Connects to RE s0 DTE side
s1 10.1.4.2/24 Connects to RC S0 dte side

RD OSPF config

router ospf 100
net 10.1.4.2 0.0.0.0 area 0
net 10.1.5.2 0.0.0.0 area 0

---

RE
S0 10.1.5.1/24 - Connects to RD S0 DCE side
s1 10.1.3.2/24 - Connects to RB S1 DTE Side

RE OSPF config

router ospf 100
net 10.1.3.2 0.0.0.0 area 0
net 10.1.5.1 0.0.0.0 area 0

---

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While I using a 0.0.0.0 wilcard mask with OSPF and specifying the real interface IP address, OSPF doesnt build route table and doenst even see OSPF neighbors! I apply a net 10.0.0.0 0.255.255.255 command on each router and OSPF route fine! I thought you could be so specific on OSPF to the individual interface but I am worng i think it doesnt work.


I can apply this configs using EIGRP and it routes OK. I wonder if this is probelm with simulator. I use Boson CCNA sim with all updates. I have some lab at home but I am very far away on duty.

What am I missing? Please help with as much explanation possible. I am searching the net and cisco site and I am not finding specific info as I am looking for. I looked at the other OSPF wildcard question in the forum, but it doesnt help me and the cisco link in their doesnt help me.

Regards.

rossonieri#1

hello,
have you try the no auto-summary command on each router?
give it a try.