12-18-2007 04:58 AM - edited 03-05-2019 08:03 PM
Hi,
I have problems with ports in Vlan 138.
The ports are up and say there is something connected to them.
They are configured in the right vlan and are trunking correctly.
I have moved one of the devices to a different port configured with a different vlan and works fine.
Any help appreciated.
Thanks
Kev
Solved! Go to Solution.
12-19-2007 01:41 AM
That is definitely your problem then. If the printers are in 10.130.138.0/24, then they will only work properly in VLAN 88, because the router will route traffic for that subnet to VLAN 88 only. Neither will they be able to talk through the router from VLAN 138 because the router does not have any presence on VLAN 138.
On VLAN 138, the only connectivity they will have is with other stuff of VLAN 138, and then only if configured in the same subnet.
If you want this to work, take the secondary address off VLAN 88, and put it as a primary address on an SVI for VLAN 138. Extend the rest of the VLAN 138 SVI config to look similar to that for VLAN 88, and do so for the other HSRP partner too.
Kevin Dorrell
Luxembourg
12-18-2007 05:23 AM
Please explain a bit more about the nature of your problem.
Leo
12-18-2007 05:35 AM
There is no layer 3 connectivity to some printers connected to fa ethernet ports on a 3560 switch. I cant even ping them i have done a show int on the relevant interfaces and everythint looks fine.
Thanks
Kev
12-18-2007 05:38 AM
It sounds like they don't have a correct IP address. How are the IP addresses allocated: are they DHCP or static?
Do you have portfast configured on all your access ports? I still don't understand " ... and are trunking correctly .. ", both it might be a clue to the problem.
Kevin Dorrell
Luxembourg
12-18-2007 05:48 AM
You should also check your vtp status. If this vlan138 is not correctly propagated through the network you may experience issues like this.
Perhaps you have used the command 'switchport trunk allowed-vlan' on some of your trunk ports? This command should contain vlan 138 to allow it on your trunks.
regards,
Leo
12-18-2007 05:35 AM
I don't think I fully understand " ... and are trunking correctly ... ". Are these access ports or trunk ports you are talking about?
Could you post two show run int, one for a port that works and one for a port that doesn't, please? Are they on the same switch, for example?
Kevin Dorrell
Luxembourg
12-18-2007 05:54 AM
This one works:
interface FastEthernet0/2
description VOICE or DATA VLAN
switchport trunk encapsulation dot1q
switchport trunk native vlan 88
switchport mode trunk
switchport voice vlan 176
srr-queue bandwidth share 10 10 60 20
srr-queue bandwidth shape 10 0 0 0
priority-queue out
mls qos trust cos
auto qos voip trust
spanning-tree portfast trunk
end
This one doesnt:
interface FastEthernet0/19
description Printers
switchport access vlan 138
spanning-tree portfast
end
The Printer atached to the one that works now used to be connected to one of the ports that doesnt work.
Cheers
Kev
12-18-2007 05:58 AM
Here is the config for the trunk interface:
interface FastEthernet0/24
description LES circuit
switchport trunk encapsulation dot1q
switchport mode trunk
speed 10
duplex full
end
12-18-2007 06:22 AM
There is something I am missing here. I am really confused. Are you saying that you connect a printer to a trunk port that has native 88, and it works? And on an access port on VLAN 138 it doesn't?
Does VLAN 138 actually exist, and does it have a DHCP server in it? Can you ping the printer from the router in VLAN 138?
Kevin Dorrell
Luxembourg
12-18-2007 06:38 AM
Kev,
Sorry
Let me explain the switch these printers are connected to are configured for data and voice ports.
The ones configured with access to Vlan 138 can not be pinged. The one connected to the Voice and Vlan port can be pinged you also see an entry for it in the ARP table on the L3 switch.
VLAN 138 exists on the switch.
Thanks
Kev
12-18-2007 06:45 AM
When you do a show mac-address-table vlan 138 at the access switch, can you see the MAC address of the printer, and that of the L3 switch?
Same question at the layer-3 switch?
How are the IP addresses allocated, DHCP or static?
12-18-2007 06:58 AM
Kev,
On the access switch i get:
Vlan Mac Address Type Ports
---- ----------- -------- -----
All 0100.0ccc.cccc STATIC CPU
All 0100.0ccc.cccd STATIC CPU
All 0180.c200.0000 STATIC CPU
All 0180.c200.0001 STATIC CPU
All 0180.c200.0002 STATIC CPU
All 0180.c200.0003 STATIC CPU
All 0180.c200.0004 STATIC CPU
All 0180.c200.0005 STATIC CPU
All 0180.c200.0006 STATIC CPU
All 0180.c200.0007 STATIC CPU
All 0180.c200.0008 STATIC CPU
All 0180.c200.0009 STATIC CPU
All 0180.c200.000a STATIC CPU
All 0180.c200.000b STATIC CPU
All 0180.c200.000c STATIC CPU
All 0180.c200.000d STATIC CPU
All 0180.c200.000e STATIC CPU
All 0180.c200.000f STATIC CPU
All 0180.c200.0010 STATIC CPU
All ffff.ffff.ffff STATIC CPU
138 0018.180f.b606 DYNAMIC Fa0/24
138 00e0.815d.5bb7 DYNAMIC Fa0/21
138 00e0.815f.7677 DYNAMIC Fa0/20
138 0800.2302.4adb DYNAMIC Fa0/19
On the L3 Switch i get:
vlan mac address type protocols port
-------+---------------+--------+---------------------+----------------
138 00e0.815d.5bb7 dynamic ip FastEthernet3/7
138 00e0.815f.7677 dynamic ip FastEthernet3/7
12-18-2007 01:41 PM
Am I correct to assume that your L3 switch attaches to the switch in question via f3/7?
What is the config of the SVI on your L3 switch? While logged into the L3 switch can you ping the SVI for vlan 138?
When you plug your printer into the voice/video port, we are assuming that the printer is inserting in Vlan 88. What IP is the printer getting when you can ping it and what VLAN does this address associate to?
12-19-2007 01:27 AM
Hi,
That is correct.
There is no SVI for VLAN 138 on the L3 switch only for vlan 88.
Config below:
interface Vlan88
description Warehouse-VLAN
ip address 10.130.138.1 255.255.255.0 secondary
ip address 10.130.88.2 255.255.248.0
ip helper-address 10.130.0.53
ip helper-address 10.137.0.53
no ip redirects
standby 88 ip 10.130.88.1
standby 88 priority 20
standby 88 preempt
end
I am looking at this remotely and the person on site has informed me that 10.130.138.1 is the Default Gatway for the printers as i thought this was originally the problem. The printers are on statics from 10.130.138 - 214. Some more info below:
AmSWCI01#sh ip arp 10.130.138.213
Protocol Address Age (min) Hardware Addr Type Interface
Internet 10.130.138.213 0 00e0.815d.64b1 ARPA Vlan88
AmSWCI01#sh ip arp 10.130.138.214
Protocol Address Age (min) Hardware Addr Type Interface
Internet 10.130.138.214 126 00e0.815d.63cb ARPA Vlan88
These are connected to interfaces fa0/2 and fa/04:
Warehouse#sh mac-address-table | i 00e0.815d.64b1
88 00e0.815d.64b1 DYNAMIC Fa0/2
Warehouse#sh mac-address-table | i 00e0.815d.63cb
88 00e0.815d.63cb DYNAMIC Fa0/4
The mac addresses for the devices in Vlan 138 are listed below:
138 0018.180f.b606 DYNAMIC Fa0/24
138 00e0.815d.5bb7 DYNAMIC Fa0/21
138 00e0.815f.7677 DYNAMIC Fa0/20
138 0800.2302.4adb DYNAMIC Fa0/19
The other two i have been told are configured on FA 0/20 - 21.
interface FastEthernet0/20
description Printers
switchport access vlan 138
spanning-tree portfast
end
interface FastEthernet0/21
description Printers
switchport access vlan 138
spanning-tree portfast
end
12-19-2007 01:41 AM
That is definitely your problem then. If the printers are in 10.130.138.0/24, then they will only work properly in VLAN 88, because the router will route traffic for that subnet to VLAN 88 only. Neither will they be able to talk through the router from VLAN 138 because the router does not have any presence on VLAN 138.
On VLAN 138, the only connectivity they will have is with other stuff of VLAN 138, and then only if configured in the same subnet.
If you want this to work, take the secondary address off VLAN 88, and put it as a primary address on an SVI for VLAN 138. Extend the rest of the VLAN 138 SVI config to look similar to that for VLAN 88, and do so for the other HSRP partner too.
Kevin Dorrell
Luxembourg
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide