I have a rather large network with multiple VLANs and routing. Here's the layout:
5540 subinterface = gi0/2.18 = 10.16.18.1/24 TRUNKED to a 2960
2960 has an interface set to VLAN 18 (no IP) goes to a Cisco 4507 with an int. set to VLAN 18 (no IP)
4507 then has a trunk to a Cisco 7206
7206 then trunks to a Cisco 3845
3845 trunks to a 3750 (single)
3750 (single) trunks to a 3750 Stack
3750 Stack has int. set to VLAN 18 that goes to a 3750(lab) w/ int set to VLAN 18 w/ IP 10.16.18.251/24, VLAN502 = 10.202.255.1/30,
VLAN510 = 10.203.255.1/30
3750(lab) then has a trunk that connects to ASA 5510 w/ subinterfaces: e0/1.18 = 10.16.18.253/24, e0/1.510 = 10.203.255.2/30, e0/1.502 = 10.202.255.2/30
ASA5510 then goes to Internet
Any trunks are set to allow all VLANs. From the 2960 to the 3750 stack it's obviously all Layer 2 with trunking.
Issue:If I sit at the 5540, I can ping 10.16.18.251 and .253 with no problems. I can also ping 10.203.255.1 with no problems. Problem is that I cannot get to the other subinterfaces on the 5510 for VLANs 502 and 510. How do I ensure that my trunk is set up right? I have a route in the 5540 pointing to the 10.203 and 10.202 using the 10.16.18.251 address. It seems like a traceroute gets to the 10.16.18.251 address but then it stops. What route should be on the 5510 to make sure it gets back? The default route on the 5510 points to the Outside. I think it's something to do with the trunk that's just something I don't understand yet.
5510:
show int ip bri:
Ethernet0/1.18 10.16.18.253 YES manual up up
Ethernet0/1.502 10.202.255.2 YES manual up up
Ethernet0/1.510 10.203.255.2 YES manual up up
I currently have 5 3750s connected via Stackwise. This stack is connected back to my core (6509s) via fiber (1Gig to Core1 & 1Gig to Core2). I want to move the 5th 3750 to another closet due to an addition of a new patch panel. Due to max length of 10 ft. for stackwise, my plan is to connect this 5th switch back to the stack using trunked fiber ports, with them being an etherchannel (2Gig). Also plan to use single fiber port form 2 different switches in the stack to provide some redundancy for the 5th switch. Should I be alert of any issues with this connection design? Do I need to properly remove the 5th switch from the stack using, no sw 5 provison sw-model or can I just disconnect stackwise and connect back with fiber?
I have a Cisco 1700 series router (i dont know exact series number) running:
ROM: System Bootstrap, Version 12.2(7r)XM4, RELEASE SOFTWARE (fc1) ROM: Cisco IOS Software, C1700 Software (C1700-K9O3SY7-M), Version 12.3(7)XR3, RELEASE SOFTWARE (fc2) installed is a WIC-4ESW card.
This should be simple, cant get it working. in a nutshell... I'm trying to configure fa0 as a vlan "trunk" port trunking vlans 1 and 20 from my managed switch (switch is configured correctly) and i want fa1 on vlan 1 and fa2 on vlan 20. another words:
fa0 tagged with vlan 1 & 20 fa1 untagged with vlan 1 fa2 untagged with vlan 20
Code: ! Last configuration change at 20:35:48 EST Sat Feb 12 2011 ! NVRAM config last updated at 20:47:38 EST Sat Feb 12 2011 version 12.3 [Code] .....
So far so good. Now we need to extend the Range of the Wireless and bought an AIR-AP1141N. And this AccessPoint works like a charm, BUT only with one SSID,
I configured in the Port Management Area of the SRP526 both VLANs on one Port and configured the Access Point for multiple SSID use, but i don't get an IP from the DHCP Server Range of the VLAN100.
Could it be possible, that die Access Point can not get the tag Information?
We have two Cisco switches with one 3560 and one 3750 we have created a new Vlan 4 with IP 10.1.3.x 255.255.255.0 - no shut then assigne to gi 2/0/46 on the 3560 Vlan 4 ip address 10.1.3.x 255.255.255.0 no shut then assign to FA0/45. All interfaces are up up along with the Vlan up up, we can ping the local IP address bu not able to pint the other switch.
Having problem pinging from Host A on ESX1 to Host B on ESX2. Each host are assigned the same port-profile. If I put 2 host's on the same ESX machine using the same port-profile, they are able to ping each other.
n1kv-vsm# sh port-profile name xxx-prod-40port-profile xxx-prod-40 description: type: vethernet status: enabled capability l3control: no pinning control-vlan: - pinning packet-vlan: - system vlans: 1 port-group: xxxl-prod-40 max ports: 32 inherit: config attributes: switchport mode private-vlan host switchport private-vlan host-association 40 400 no shutdown evaluated config attributes: switchport mode private-vlan host switchport private-vlan host-association 40 400 no shutdown assigned interfaces: Vethernet3 Vethernet4 System-uplink profile is trunking all vlans.
I have a HP Procurve 5406 connected to a Cisco 3560 on a temporary cat5e connection and I have Mitel IP phones needing to go on the Cisco switch.Ive configured the HP Procurve port to TAGGING both VLAN 10 (data) and VLAN 20 (Voice). NO is selected for default VLAN 1.The Cisco is configured on the port with switchport encap dot1q and switchport mode trunk.
Ive configured an IP for interface VLAN 10 and i cannot ping it from across the network. The interfaces are up and happy. I have tried changing the VTP status from transparent to server (VTP pruning is off) ive tried setting allowed vlans 10,20. Still not a think. The worse thing is that i have a working Cisco switch with the HP procurve that i checked the config on and its the same! The only difference is that the media type is SX over SFP in that case.
p.s not that im at this stage yet but i initially configure the FastE ports as trunks with native vlans because i was using non-cisco phones. On a spare port i convigured the voice vlan 20 and i say on the mitel phone that it was looking on vlan20! I didnt expect that, i thought the Voice VLAN ID was carried on CDP enabled devices only.
Having an issue getting my DMZ vlan working. Running my ASA5505 and i have configured e0/2 for DMZ w/ VLAN ID 3. Connected to my 2716 on port2.Inside e0/1 w/ VLAN ID 1. Connected to my 2716 on port1.
I am trying to get my DMZ Vlan to ports3&4 (LAG1) but when i assign the LAG group to PVID 3 i lose connectivity on VLAN1. I want to send both VLANs to that host because the teamed adaptor is used for Hyper-v Network Switch.
I have a number of class-'c's as a hand-off from my data center fiber to my 2960, which then sprawls the racks with about many 2950 switches, mostly 20 machines per switch. To allow machines on one 2950 to push data to another 2950 without routing back to my ISP's router(which costs money for bandwidth) isn't is possible to trunk one port on each 2950 to another 2950 and adding a addititional vlan8 to them. Then data jumps from 2950 to 2950 without going back to the 2960 or mainly not going back to my ISP's router. Is this the correct way to accoplish this with extra vlan and trunking the 2950's to each other or am I looking at this all wrong?
I am working on the exact same configuration as noted here [URL] that uses subinterfaces on the asa. I have two interfaces on my stacked 3750's configured as trunk ports (primary ASA on primary 3750 stack member, secondary ASA on secondary 3750 stack member).
My questions is what should the DG be configured on the 3750. Can I keep the 3750 in L2 or will I have to enable L3 routing? Should the VLAN interfaces be configured.
The port that the ASA is configured with has 3 subinterfaces on VLAN 100, 200, and 300.
The subinterfaces are G0/2.100, G0/2.200, and G0/2.300.I am in the middle of converting from 3 separate DMZ switches, each attached to their own port on the asa which is their default gateway to one physical port on the ASA broken into 3 subinterfaces which then connect to stacked 3750's. The stack will then have the 3 separate DMZs in actual separate VLANs.
My goal is to leave the default gateway for each dmz on the ASA so I don't have to modify other areas of the ASA config.
There arer 3 stacks of 3750 at each building. The core switch/router in our network is at location B. The way it was originally setupis every L3 device has an ip address for each lan. So let's say we have VLAN 200 withnetwork 192.168.200.0/24. The DataCenter would be assigned (192.168.200.3), Building B would be assigned (192.168.200.1), and Building A would be assigned (192.168.200.2). I'm configuring the DC and BA to be L2 only and Building B to be the only real router in the network besides a few ASAs. When I ran a 'no ip address' on the vlan interface on Building A, the internet connectivity for 192.168.200.0 dies, but local connectivity is fine. After doing some research and troubleshooting, I found out that if I set the next hop on the ASA for the local networks for an IP address on building B everything works perfectly.
The way the routes on the ASA are setup for local networks are as follows.
All local networks have ip route localnetwork mask x.110.215.17. This address is the IP address of the inside interface on the ASA. Now, when I kill the IP address on the vlan interface on Building A internet connectivity goes down, while the next hop is still pointed to this address, BUT if I give it a next hop of the vlan interface ip address on B everything works fine. Now, I can easily fix this, I was just wondering why this is happening?
I would like to push route for admin services (Vlan20) to bypass the firewall via an other connection (CSI to CSE). So my first choice was to create a route-map in (CSI) but I don't know how to do it. On my Firewall ASA, I don't have any Context License, that is why I would like to do it like this.
I have included some part of my initial configuration CSI and CSE and diagram.
CSI configuration (Switch L3 3750) { interface GigabitEthernet1/0/1 description To ASA no switchport [Code]....
some of our switches have the switchport mode trunk command configured between the 3750 switches but other 3750 switches connected to our 6509 core switch do not have the switchport mode trunk command to permit Vlans from going across the swtiches instead it has an ip address and says no switchport what is the difference between does two. Is trunking used only for Layer 2 and L3 is used to route interface vlans?
I have two networks at two sites with a dot1q trunk between the two L3 switches at both sites (no routers involved)
SITE A - Cisco 3750 L3 - VLAN ID 50 10.10.50.0/24
SITE B - Cisco 3750 L3 - VLAN ID 50 10.20.50.0/24
I would like to extend the SITE A VLAN to SITE B so that I can move hosts from SITE A to SITE B without needing to change their IP address but the vlan ID is already in use. Obviously the easy solution is to change the VLAN ID for one or other of the sites but both sites contain hosts that run 24/7. Is there a way to join two VLANs with different IDs together.So for example I create a new VLAN 60 at SITE B and associate it with VLAN 50 at SITE A.
We have a low bandwith (15-20 Mbit/s) to the ASA from our Client vlan. If i connect the Client to the same vlan as the ASA is, the bandwith (90 Mbit/s) is good.
And we have following error message in the log from the switch:
%PLATFORM_UCAST-4-PREFIX:
One or more specific prefixes could not be programmed into TCAM and are being covered by a less specific prefix, and the packets may be software forwarded I first get the idea that the switch is overloaded with router traffic. Thats why i assuming i have to check the sdm templates, but i'm not sure if this resolves the issue.
Create a port channel out of interface 3 and 4 of ASAConfigure 2 sub-interfaces in those Po interface (my inside vlan and the dmz)At the 4948, configure a trunked port channel out of a single interface (funny ), then do the same in the second 4948Connect ASA port 3 to the 1st 4948's single-interfaced port channel, ASA port 4 connects the same on the 2nd 4948.
[URL] I am not savy configuring ASAs at all and I can't get it to work. We are switching to a SIP trunk phone system and I am in charge of setting up the ASA to not only make it work but also make sure that there's packet priority or QoS.I've never configured something like this and I was giving another set of instructions to make sure that this is working:
[URL]
Configuration: My configuration is very basic: 3 interfaces - Outside/Inside/Guest ASA Version: 7.2(3) ASDM Version 5.2(3) Firewall Mode: Routed
Solution: When I tried following the instructions on brian-kayser's blog I get an error when I'm sending the following command:
shape average ^ Invalid marker service-policy PRIORITY-POLICY ^ Incomplete command
I think it's because my version of ASA doesn't have this functionality but I don't know.
How do I submit an RFE (Request For Enhancement) to the Cisco SBR team to encourage them to implement the missing support for VLAN to VLAN firewall rules that was available in the RVS4000 (See [URL]) and that was supposedly added to a beta release of the RV220W firmware (See [URL])?
We have 6509 VSS with FWSM Module and we have created two context on it, one is INTERNALL CONTEXT othe is EXTERNALL Context? We have spanned various VLANS in switches and FWSM context level. All VLAN Gateways are configured in context level.
Activity description : We had planned migration of these devices into a new Datacenter, it was a planned activity. During migration of devices from one Dc to a new DC we broke the VSS and kept the primary running and removed the secondary switch and migrated this secondary to new DC and powered this device ON in the new DC and checked all the config was very much fine but this device was OFF network as secondary was brought to new DC just to limit the downtime during the primary switch movement.
During the activity ( Primary switch movement )We powered off the Primary switch and mean time before shifting into new Data center We had brought up secondary switch which was already existing in the DC was put live in the network and it was working fine without any issues.
Later we had moved Primary into new data center and tried to put into VSS with the secondary , during this period the secondary device into went into RECOVERY MODE and primary device was not responding and devices went off network and immediatly we removed the VSL link and brought up primary into production network without secondary online in the network ( Without VSS just stand alone switch ) network started working, but bringing up the primary we found that some of the VLANS in the FWSM was deleted and some VLAN had misconfiguration ( example : say original VLAN ip 10.200.112.1 has become 10.300.13.1 ) also some of the access list as well as SVI was deleted making configuration mismatch.
Wanted to know while syncronization b/n primary and secondary switch in VSS if we pull out VSL link would create this type of issues.
I am into creating a new VLAN, what I have missed in the setup / configuration. I have multiple Cisco switches, the VLAN is configured on a 3750. My attempt was to place the VLAN on one port (as concept) and work from there - - so it is on 2-02 of my main Cisco stack. The new VLAN is 220 - Printer. My present IP scope is 192.168.200.x - running out of addresses - trying to add 192.168.220.x. on VLAN 220 to relieve some pressure - -- Most I can do is ping the VLAN IP - 192.168.220.1 and that resolves - - but if I attach a networked device with a 192.168.220.x address - - cannot get there..
Here is the switch info...
version 12.2 parser config cache interface no service pad service tcp-keepalives-in service tcp-keepalives-out service timestamps debug datetime msec localtime service timestamps log datetime localtime service password-encryption
i have linksys modem which already working for different v lans then for lab we take other switch 3750 switch and created different v lans. v lans are working fine but we need internet for different v lans for that linksys modem how we can make interface V lan1/
ip address 10.1.1.10 255.255.255.0 ip default- gateway 10.1.1.1 no sh interface Vlan10 ip address 10.1.2.1 255.255.255.0 no ip route-cache !!interface Vlan20 ip address 10.1.3.1 255.255.255.0 ip route 0.0.0.0 0.0.0.0 10.1.1.1 ip dhcp pool vlan10 network 10.1.2.0 255.255.255.0 default-router 10.1.2.1 dns-server 10.1.1.1 ! !ip dhcp pool vlan20 network 10.1.3.0 255.255.255.0 default-router 10.1.3.1 dns-server 10.1.1.1
We have a 3750 which has a few vlans configured. One Vlan is for public access wifi and another for our security system (door access, cameras, etc.). I don't want the public wifi vlan to access the security system vlan. How can I accomplish this in the 3750?
Scenario: I have a vmserver w four virtual servers all in configured w in different subnets. What's the best way to configure a 3750-x switch to route traffic from the virtual servers to their vlans?
I have cisco switch model WS-C3750G-12S-D. It is in transparent mode. I am getting below error message when tried to create new vlan.
Proposed configuration exceeds the limit of 1005 VLANs that can be supported on this platform. Reduce the number of VLANs proposed to be within this limit.
After deleting few unnecessary vlans, it allowed me to create.
3750#sh vtp statusVTP Version : running VTP1 (VTP2 capable)Configuration Revision : 0Maximum VLANs supported locally : 1005Number of existing VLANs : 959VTP Operating Mode : TransparentVTP Domain Name : VTP Pruning Mode : DisabledVTP V2 Mode : DisabledVTP Traps Generation : DisabledMD5 digest : 0xBC 0xA7 0xEC 0xDE 0x36 0x6C 0x61 0xB4 Configuration last modified by 97.193.17.172 at 0-0-00 00:00:00
I confused with terms 'maximum supported vlans' and 'maximum locally supported vlans'. If switch is supporting vlans 1-4094 means it should also allow to create locally. Otherwise how they will pass through the switch trunks without local creation.
Have a quick question regarding inter-vlan routing on a 3750. Overview of network is ISP --> ASA --> 3750 (acting as my core and default gw). I have 5 vlan interfaces on my 3750, all w/ 192.192.x.x subnets, a 6th w/ 192.168.100.x, and a 7th w/ 192.168.200.x. I have enabled "ip routing" on the switch and can successfully ping from subnet A to subnet B as long as both devices are using the correct DG for their vlan, which is the switch. I have a few ports that are trunked as well that go to ESX hosts which break out the vlans according to the subnet the vm should be attached to. The ASA is set to nat internal traffic for all the vlans.
Now my question: short of applying an ACL to each vlan interface to block traffic from other 192.192.x.x subnets is there a better way to accomplish this? I want my 192.168.10.x subnet to be able to reach all the subnets, but don't want 192.192.10.x to be able to talk to 192.192.20.x for example. I was thinking to create an acl like this:
access-list 120 permit ip 192.192.10.0 0.0.0.255 access-list 120 deny ip 192.192.0.0 0.0.255.255 192.192.10.0 0.0.0.255access-list 120 permit ip any 192.168.100.0 0.0.0.255 192.192.10.0 0.0.0.255
and then applying this to the interface for the appropriate vlan.
I have one VLAN on a 3750 where I do not see any MAC addresses even though it is in use. This is an unrouted VLAN between a WLC on a port- channel /LAG and an access port to an ASA for guest traffic. When I do a show MAC add I get nothing for VLAN 60 (guest DMZ) but all other VLANs seem to be OK. Spanning tree is not showing TC counters incrementing either.
I also was told when put a port on this VLAN the laptop did not get a DHCP address form the ASA, but the wireless guest clients are working fine. I can see the DHCP leases and ARP entries in the ASA and the ASA ARP in the WLC so some traffic is passing fine. I'm not onsite right now so troubleshooting is all remote which limits some options.
I have a 3750 switch which has the command 'spanning-tree vlan **'. I am struggling to remove this command, as this particular VLAN is one I want to distribute across our network.I have so far, set the switch to VTP Transparent mode and removed the VLAN from the database, this removes the command. If I then put the switch back to VTP client mode (or manually add the VLAN, while in in VTP transparent mode) then the command comes back. Submitting the command 'spanning-tree vlan **' command has no affect.
I have 3 VLANs here that need to be on the same network segment. They are going to be used by our Wi-Fi network (with Aironet APs), bound to 3 different SSIDs (as Aironet APs doesnt allow multiple SSID per VLAN), each one with a different authentication method and server.Is there a way to bridge those VLANs together with a Catalyst 3750 switch? I tryed configuring an IP address on one of the VLAN interfaces, then configuring a bridge with the vlan-bridge protocol (Catalyst 3750 doesnt have the "ieee" bridge protocol type) and put all 3 VLAN interfaces on the same bridge-group, but it didnt work (even with "bridge x route ip").I also tryed configuring IRB bridging, with the 3 VLAN interfaces on the same bridge-group and an IP address on the BVI interface (the way I used to do with old 2600 routers). Same result.(actually, I didint test to see if the interfaces are actually being "bridged", but I see neither of them can reach the router)
One of my VLANS on my 3750 gives a status of act/lshut. I've tried no shut commands on the interface to no avail. From my reading it seems like this means the VLAN is active but shut down locally.
We have a need to access an VLAN at the main office( ie Core Switch 6500,switch 3750) from a remote site(Cisco3845 router, Switch3750) connecting by a SP through fibre link.
what is the easiest and quick way to do it and the user from the remote site just want to have access to that VLAN for a couple of days only.
