I had posted this issue before, then a Tomcat issue obliterated my post. So I’m back, this time with a diagram that I hope helps. This really has me stumped, and my VAR has not been able to fix this either.
I am in Building A. I have a PC that is connected to a 2950, which is connected to a 3560. Off the 3560 is my server running DHCP. We are in VLAN 11, so we would expect the PC to get an IP address in the 11 range.
The 3560 has a fiber link that takes it to the main 3560G, which is doing some Layer 3 work, and is the main VLAN handler, so it handles VLANS 10, 11 and 12. Off of the 3560G is my server in VLAN 12, running DHCP for those devices.
Anytime I repower the PC in Building A, or try to release and renew the IP address, I get an IP address from 12. And it shows up on the 12 server. I want it to get an 11 IP, since it’s in VLAN 11.
The port on the 3560 that has the 2950 attached:
interface FastEthernet0/14
description Connection Cisco 2950
switchport trunk encapsulation dot1q
switchport trunk native vlan 11
switchport mode trunk
The 2950 port connecting to the 3560 looks like this:
interface FastEthernet0/17
switchport trunk native vlan 11
switchport mode trunk
The port that my PC (off the 2950 is on) looks like this:
interface FastEthernet0/20
switchport access vlan 11
The 3560 port that connects to the 3560G:
interface GigabitEthernet0/1
description Connection to Main 3560G
switchport trunk encapsulation dot1q
switchport mode trunk
srr-queue bandwidth share 10 10 60 20
srr-queue bandwidth shape 10 0 0 0
queue-set 2
mls qos trust cos
auto qos voip trust
All devices on the 3560 properly get an 11 IP, so it must be something with my 2950.
NOW, here’s something TOTALLY FLIPPIN WEIRD (if you ask me!) If I take that PC that’s off the 2950, and give it a static 11 IP addy, with a proper subnet and default gateway and DNS…it cannot access the server or the web.
Totally stumped and would love a little guidance.
<b>Attachment Keywords : </b>
1) PD_Switch_Issue.pdf