1721's with WIC-1ENET routing between...cant ping between interfaces!! 2

[flyboy1701]

Hi everyone, I would really appreciate some help here, on something which I am sure is very basic, but nevertheless I am banging my head against a brick wall.

I have 2 x 1721's both runnning IOS 12.3(1a) with WIC-1ENET modules in slot 0, I am trying to route between the two interfaces, but cannot get each router to ping the others ethernet interface. As a test though I have given my laptop the IP address of the other ethernet interface and connected directly to the router...essentially simulating the other router, and I can ping between them, but when I plug the routers back-to-back....nothing again.

I have attached the 2 configs, and would really appreciate any help.

Thanks

sh conf
Using 823 out of 29688 bytes
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Wheatsheaf_Pub
!
!
ip subnet-zero
!
!
no ip domain lookup
ip dhcp excluded-address 192.168.1.1 192.168.1.9
ip dhcp excluded-address 192.168.1.200
ip dhcp excluded-address 192.168.1.108
ip dhcp excluded-address 192.168.1.250 192.168.1.254
!
ip dhcp pool Wheatsheaf_Pub
network 192.168.1.0 255.255.255.0
dns-server 194.72.9.38
default-router 192.168.1.1
!
!
!
interface Ethernet0
ip address 192.168.100.1 255.255.255.0
full-duplex
!
interface FastEthernet0
ip address 192.168.1.1 255.255.255.0
speed auto
full-duplex
!
ip classless
ip route 192.168.2.0 255.255.255.0 Ethernet0
no ip http server
!
!
line con 0
line aux 0
line vty 0 4
login
!
no scheduler allocate
!
end

Wheatsheaf_Pub#


version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Function_Room
!
!
ip subnet-zero
!
!
no ip domain lookup
ip dhcp excluded-address 192.168.2.1 192.168.2.11
!
ip dhcp pool 1
network 192.168.2.0 255.255.255.0
dns-server 62.6.40.162
default-router 192.168.2.3
!
!
!
!
interface Ethernet0
ip address 192.168.100.2 255.255.255.0
full-duplex
!
interface FastEthernet0
ip address 192.168.2.3 255.255.255.0
speed auto
full-duplex
!
ip classless
ip route 192.168.1.0 255.255.255.0 Ethernet0
no ip http server
!
!
line con 0
line aux 0
line vty 0 4
login
!
!
end

Function_Room#

 

[burtsbees]

Weird...everything looks normal---sending and receiving packets...You get the same results pinging from router a to router b, and router b to router a? I guess try setting the interfaces to half-duplex, see what that does...

Burt

 

[StaplesMan]

Both interfaces have the same mac! Also have the same mac as the cars I ordered off of ebay. The place we ordered our wics from is a rip off company. Every card has the same mac address.

One one of the interface set the mac to something different then it will work.

Good luck. Don't use the china company again!

It took me hours to figure this problem out, with my own equipment.



CCNA, A+, HP Certified Professional

 

[flyboy1701]

Very well spotted!!!!!!!! The weird thing is, that I didnt use a company in China, it was from EBAY, but from a company in Slough..........wait till I write his feedback.....thanks for this.

 

[burtsbees]

Holy crap!

Burt

 

[StaplesMan]

Sorry that my grammar, was not that good on my last post. It was late.

Just wanted to make clear that you can use the cards, all you need to do is set the mac address manually on one of the interfaces.

interface Ethernet0
mac 0004.dc0c.b500

It should all work as expected.

One other note! When you set the card to Full Duplex you need to make sure the device attached to it also is manually set to full duplex. If you connect the card to a switch, the switch will automatically attempt to determine the duplex mode, and will pick half. You must manually set the switch to full (if possible). Same with the PC, go into your network card settings and set full duplex.





CCNA, A+, HP Certified Professional

 

[flyboy1701]

Yeah, after reading your post I was going to do that...but at the end of the day...shouldnt have to. I have already e-mailed the guy from ebay and told him.

Nick