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2611XM/3548XL - Subinterfaces and VLANs

I am experiencing issues assigning IP address when attempting to trunk multiple VLANs up to a single CISCO 2611 using subinterfaces.....

I have a CISCO 2611 XM and a CISCO 3548 XL...I am trying to use FA 0/0 with subinterfaces (2611) and vlan access [desired ports] (3548) to carry multiple VLANs.

192.168.100.0/24 [VLAN 100 on the 3548]
192.168.200.0/24 [VLAN 200 on the 3548]

-==2611==-
int fa 0/0.1
encap dot1q 100
ip address 192.168.100.0 255.255.255.0

int fa 0/0.2
encap dot1q 200
ip address 192.168.200.0 255.255.255.0

-==3548==-
int fa 0/1
switchport mode trunk (allowed all)

int fa 0/3
switchport mode access
switchport access vlan 100

I do not have any speed/duplex issues or any up/down issues.....I have dhcp pools setup for both and dhcp-server/networks setup per VLAN (problem ???)....I currently have no L3 management IP established on the 3548 so int VLAN1 remains up up....Obviously as soon as I revert back to a single network on fa 0/0 with no sub-ifs it works fine.

I have seen several proposed solution regarding "secondary" interfaces resolving several peoples issues with physical interface limitations but unfortunately that hasn't worked for me.

ASKER CERTIFIED SOLUTION

pjtemplin

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calvinetter

Look at your configured IPs on the subinterfaces:
int fa 0/0.1
ip address 192.168.100.0 255.255.255.0 <- network address; should be something like 192.168.100.1 ...

int fa 0/0.2
ip address 192.168.200.0 255.255.255.0 <- network address; should be something like 192.168.200.1 ...

Then you can deal with routing between VLANs:
Workstations on VLAN 100 would have their default gateway set to: 192.168.100.1
Workstations on VLAN 200 would have their default gateway set to: 192.168.200.1

On the switch, you could do this in order to remotely manage it:
int vlan 100
ip address 192.168.100.2 255.255.255.0
no shut

ip default-gateway 192.168.100.1

cheers

ciscowannabe

ASKER

calvinetter - The IP addresses on the sub-ifs are .1 - sorry for the misinformation.

I'm checking into the above solution recommendations. Thanks,

ciscowannabe

ASKER

Forgetting about lack of DTP was it....I forced trunk encap and that did it....thanks pjtemplin.