VLAN Routing

[daidem77]

I recently created two VLANS on my network (VLAN1 AND VLAN2). I reach the internet through a 506e pix. I also have a cisco router configured with sub interfaces for both networks inside the lan. I can ping both network workstaitons/servers from the the cisco router where the sub interfaces are configured but I can ping the vlan from one to the other. I use the pix internal interface as the gateway for the workstaitons and servers in VLAN1 (192.168.20.1). I know that pix can't send request back the interface it came... Can someone help me how to get my vlans to talk to each other?

C 192.168.20.0/8 is directly connected, FastEthernet0/0.20
C 192.168.30.0/8 is directly connected, FastEthernet0/0.30
C 172.168.40.0/16 is directly connected, Ethernet0/0

pix ip is 192.168.20.1

Any help would be appreciated.

 

[vipergg]

Don't think you have your addressing correct , you have everything in the 192 space in the same subnet if you are using a 8 bit mask . Why do you need a 8 bit mask , should be using like a /24 for your subnets . All your devices default gateways should point to the router subinterface address . To get to the pix use a static default route pointing to the pix address.

 

[MartinR82]

what switch are you using?

need to see the cisco router config too.



should have something like below, but i have used /24 networks

interface fastethernet0.20
ip address 192.168.20.254 255.255.255.0
encapsulation dot1q 1 native

interface fastethernet0.30
ip address 192.168.30.254 255.255.255.0
encapsulation dot1q 2

you will need to issue

ip routing

on the router and also add

ip route 0.0.0.0 0.0.0.0 192.168.20.1

and on the PIX add

route inside 192.168.30.0 255.255.255.0 192.168.20.254 1