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Cisco 1761 router need help configuring WIC card

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gman10

Technical User
Jul 20, 2001
451
US
Good evening all-

I have a 1761 router with a WIC-4ESW card in slot one of this router.. the Cisco notes involved with configuring this card are cryptic at best and would love some help if possible.. Theres mentioning of having set up VLANS for this card to activate it's 4 ports but I don't see why thats necessary if I just need these 4 ports on this WIC card to just allow me to plug a computer into it.. Is there an easier way? Just want to activate these 4 ports for network functionality..

Thank you all for any help you can provide..

gman[morning]
 
Gman,
No other way but to create a vlan. It's really simple though:
!
interface Vlan1
ip address 192.168.1.1 255.255.255.0
!
That's it! and if you are running only one Vlan, you don't even have to associate the F1 through F4 to it.
All 4 interfaces will reply to that one IP.
Treat your Vlan just as an interface, so if you want to nat:
!
interface Vlan1
ip nat inside
!
... and so on
Jarek
 
Thanks Jarek!

Hey lets say I wanted to incorporate the F1 through F4.. what is the actual syntax to enable these 4 separate interfaces? I tried a variety of ways, I guess my syntax is way off.

Thanks for all your help!
gman[morning]
 
I assume you want to use each Ethernet interface as a separate IP Network(?). If that is the case then you need to created 4 VLAN's:

vtp mode transparent
vlan 10
name VLAN-10
vlan 20
name VLAN-20
vlan 30
name VLAN-30
vlan 40
name VLAN-40

Then create Layer-3 interfaces for each of these VLAN's and assign IP addresses to each one:

interface vlan10
ip address 1.1.1.1 255.255.255.0
!
interface vlan20
ip address 2.2.2.2 255.255.255.0
!
interface vlan30
ip address 3.3.3.3 255.255.255.0
!
interface vlan40
ip address 4.4.4.4 255.255.255.0

Then you need to assign the physical switch ports on the WIC-4ESW to each vlan:

interface fastethernetX/1
switchport mode access
switchport access vlan 10
!
interface fastethernetX/2
switchport mode access
switchport access vlan 20
!
interface fastethernetX/3
switchport mode access
switchport access vlan 30
!
interface fastethernetX/4
switchport mode access
switchport access vlan 40

That should be it I think? The Switching IOS on the 2600/3600/3700 is based on the 3550 IOS IIRC so it should look like that.
Additionally if you have other routers you'll need to get the routing protocols to include the new IP networks etc.

Good luck

Andy
 
gman

Each interface would have to be on a separate vlan and on a separate network subnet
ie:
interface FastEthernet1
no ip address
vlan-id dot1q 1

interface FastEthernet2
no ip address
vlan-id dot1q 2
!
interface Vlan1
ip address 192.168.1.1 255.255.255.0
!
interface Vlan2
ip address 192.168.2.1 255.255.255.0
!

Jarek
 
Thanks for everones help as I'm sure I'll utilize all your answers pertaining to this.. If vlans are how this will work then so be it!

Thanks everyone..

gman[morning]
 
All-
Hope everyone here is doing well. I tried creating a vlan from global configuration mode (config t) but it didn't work.. Let's say I'm telnetted to the 1761 router - i.e,

1761>#
1761>config> int vlan1 (ent)

at that point it comes back with an error as if it just can't create the vlan because it doesn't see any of these WIC ports in order to have them activated.. is there a way to tell the router that I just want to issue one IP address to the 4 port WIC card by making a VLan ( in this case, Vlan1).. everytime I try that command it errors out.. am I starting off this process incorrectly? what mode should I be in, can anyone provide a step by step??

thx
gman10[morning]
 
All-

Sorry I meant to say that I type in vlan1 then the IP address and subnet after the word vlan1 from the configuration mode and it fails.. I didn't want the group to think that I wasn't typing in the entire command at the prompt.. what can I do?

gman10[morning]
 
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