Re: [enterasys] Vlan configuration issue. & Default GW

Sun, 07 Jun 2009 20:51:08 -0700


Hi Michael,

With last resort I presume you mean default route/gw?

This is what I would like to accomplish, but I don't know the command that will do it, and have either misunderstood the documentation or been unable to find out which command to use.


I did try and specify a default route by defining a static route as 0.0.0.0/0.0.0.0, but it didn't work out. I did not spend too much time on the whys as I felt I was on shaky ground trying a configuration that wasn't directly mentioned in the product documentation.


I have included the router specific configuration below:

----------------------
C2(rw)->router(Config)#show running-config
!
interface vlan 90
no shutdown
ip address 192.168.90.250 255.255.255.0
interface vlan 91
no shutdown
ip address 192.168.91.254 255.255.255.0
interface vlan 92
no shutdown
ip address 192.168.92.250 255.255.255.0
interface vlan 93
no shutdown
ip address 192.168.93.254 255.255.255.0
interface vlan 94
no shutdown
ip address 192.168.94.250 255.255.255.0
interface vlan 95
no shutdown
ip address 192.168.95.254 255.255.255.0
interface vlan 96
no shutdown
ip address 192.168.96.250 255.255.255.0
interface vlan 99
no shutdown
ip address 192.168.99.250 255.255.255.0
interface vlan 100
no shutdown
ip address 192.168.100.250 255.255.255.0
!
router rip
----------------------


Regards,

Kim Pedersen





Pasetta, Michael wrote:

Have you tried to add a route of last resort in the switches router configuration?

From: Kim Pedersen
To: Enterasys Customer Mailing List
Sent: Sat Jun 06 21:23:38 2009
Subject: Re: [enterasys] Vlan configuration issue. & Default GW

I have a question to add into this interesting thread, which adds a twist to Abhijit's scenario.

I have a very similar setup to the diagram below, with the added difference that on my setup the IP addresses of the C3 switch on each of the VLANs (10,20 and 30) is set as the default gateway for the clients connected to the B3 switches.

Above C3 switch in the diagram below, I have a firewall / internet router on VLAN 40, and I would like the C3 switch to route all non-local traffic to this firewall.

I have been unable to get this to work, as the default route command on the C3 switch seems only to work for the C3 switch itself, and not for any routed networks.


Does anyone have experience with this?


Regards,

Kim Pedersen
CNCS Ltd.




Pal, Abhijit IN CCU SISL wrote:

Hello,

 

I am describing the scenario.

 

Five B3 switches will be connected with one C3 switch. Each B3 SW will be used as L2 SW and they will be in separate Vlan. One server which will be in separate vlan, will be directly connected to C3 switch. Now in C3 SW Vlan routing will happen. Attaching the worst Diagram came out of my best effort.

 

 

What should I do?

 

Best Regards,

 Abhijit Pal

 

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