09-05-2013 02:09 PM
I'm hoping someone could give me some direction. Basically my problem boils down to the fact that I can't go anywhere outside of my VLAN 200. I have a new 2920 Procurve that is connected to a Netgear switch. The Netgear switch only has the default VLAN 1 setup with an IP of 10.1.1.3. I have set up VLAN 200 with IP of 10.1.200.1 /24 on the 2920 and have one port Untagged for 200. This port is 3/2. The port connected to the Netgear switch is port 3/48. I can ping our DNS server (10.1.1.125) from the Procurve which is connected to the Netgear switch but when I connect my laptop to port 3/2 (VLAN 200) and manually assign an IP address to my laptop I cannot ping the server. Here is my config:
no untagged 3/1-3/3,3/20,3/47
ip address 10.1.1.250 255.255.255.0
ip address 10.1.200.1 255.255.255.0
ip helper-address 10.1.1.125
interface 3/2 (connected to my laptop)
untagged vlan 200
interface 3/48 (connection to Netgear switch)
tagged vlan 200
untagged vlan 1
Basically I can't get over to my Netgear switch on VLAN 200.
09-05-2013 07:43 PM
Trace the layer-3 path of the packet:
1/ Leaves your laptop, goes to its default gateway, which is the VLAN 200 interface on the 2920, 10.1.200.1
2/ From the VLAN200 interface, the 2920 is direct-connected to the destination subnet, therfore it knows to send out an ARP, find the destination device and switch the packet to it.
3/ The destination device replies by sending its packet to its default gateway. Where is that?
4/ The default gateway will look up its routing table to find the 10.1.200.0 subnet. Can it find it?
09-06-2013 02:21 PM
I wanted to thank you for your response as it helped me to wrap my head around it and correct my issue. I had to create a static route on two routers one of which was the Netgear L3 switch that pointed back to that VLAN. I'm in the middle of implementing a new core which will remove the need for these routers but needed to get the InterVLAN routing functioning in the mean time. Again, thank you!