Solved: VLAN problem

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Couriant

James
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This is a toughie, even my network teacher is stumped:

In the attachment we set up a test VLAN situation. Hosts B, D, and F were not included.

The VLANs had the networks of:
VLAN 1 = 192.168.10.16/28
VLAN 2 = 192.168.10.32/28
VLAN 3 = 192.168.10.48/28

The hosts are 192.168.10.18, 192.168.10.34 and 192.168.10.50 (one on each VLAN). The D/Gateway is set as the same as the ip addresses below.

The router (Cisco 2600) was set up as:

int f0/0, no ip address, no shutdown
int f0/0.1 - encapsulation dot1q 1, ip address 192.168.10.17 255.255.255.240
int f0/0.2 - encapsulation dot1q 1, ip address 192.168.10.33 255.255.255.240
int f0/0.3 - encapsulation dot1q 1, ip address 192.168.10.49 255.255.255.240

Switch (Cisco 2950) was set:

int f0/1 - switchport mode trunk
int f0/2 - switchport access vlan 1
int f0/3 - switchport access vlan 1
int f0/4 - switchport access vlan 3
int f0/5 - switchport access vlan 3
int f0/6 - switchport access vlan 2

Problem:

Hosts on VLAN 2 and VLAN3 can ping each other. They can ping 192.168.10.17 but not 192.168.10.18. Hosts on VLAN 1 cannot ping anyone, including 192.168.10.17. I temporarily (sp?) changed the IP address of Host A to 192.168.10.35 and the host could ping. The router could not ping VLAN 1 but was sucessful in pinging VLAN 2 and VLAN3.

Question, is there a setting for VLAN 1 to get it to start accepting requests?

Note that this was a class project, until we came across this problem. We had 4 setups of the same thing as above and all 4 had the same problem.
 

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Couriant

James
Thread Starter
Moderator
Joined
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Messages
40,339
OK, I figured it out... This will be an info for other Network Admins. The problem lies within the IOS of the switch. Pre 10.2 (i think, it's at school right now) versions cannot allow for the VLAN1 to be configured the way I had it configured so now the school will need to get the latest IOS... which won't be cheap... to allow for the configuration to work.
 
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