Cisco WAN :: 3750x - Internet Is Working Only On VLAN 1
May 23, 2013
I need to connect two switches with each have different Vlans and wants to Connect the users of These Switches to Existing Network of Company(Vlan 1 ; showing Right in the picture).
I have created Vlans and able to route packets from Two Vlans (10,20) to VLAN 1 but i am unable to get access to Users existing in vlan 10,20.
Internet is working fine from VLAN1 and existing network did not have any router ,it is just a DSL modem and did not have Static /Default Route option,NAT.
What Option should i choose for it. 3750x have 12 Mini Gbic Slots and 1 Routed port and did not have any NAT options in it.
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Jan 25, 2013
I have 3750x with existing small business server and all computers on one vlan. This vlan connects to other switches with fibre trunk sfp's.I want build a new forest utilising vlans in the normal way, what is the easiest way to segregate this vlan?The site is running 24/7.
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Sep 22, 2011
I recently upgraded my network to have two 3750x core, one interface on the cisco is connecting to a Netgear switch via a fiber converter. I am keep getting the vlan flapping error message in my log as below.
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Apr 7, 2013
I am trying to configure a new metro ethernet and have some questions about the configuration. The physical layout is a main office and two remote locations. The remote sites are point-to-point connections to the main office, tagged by the ISP with VLAN 130 and VLAN 140. The connections aggregate into one handoff at the main office, and are plugged into Catalyst 3750-X switches at all three sites.
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Mar 26, 2012
Company has implemented a 3750x with older Lexmark Pro print servers on new V lan configuration for printers. Causing print servers to lose connection. Have to reset constantly. Have tried to configure print server ports to full. Also new Nexus 7000. Perfect scenario is network devices.. not there yet.
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Feb 6, 2013
I have a LIII Switch Cisco 3750x ,with diffrent Vlans , Some users are in Vlan 102 (10.10.2.0) and Some Users are in Vlan1 (10.10.1.0) , now i want to restrict the Vlan102 users to access Vlan1 , i am pasting my configuration below , how to create a access list .
interface Vlan1
ip address 10.10.1.36 255.255.255.0
ip helper-address 10.10.1.36
[Code].....
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Mar 19, 2013
I have one issue on Vlan in Cisco 3750X switches , I have 2 Offices , I am sitting at corp OFfice and i have one 3750 ( 10.10.1.36)Switch at my location , in my remote office i have one more switch 3750 ( 10.10.33.1) and i am able to access the both vlan IPS with out any issue , now i have some network components in Vlan33 ( 10.10.33.1) at my remote office . i am able to ping 10.10.33.1 IP from my corp office , but i am not able to ping any network devices in 10.10.33.5 example : 10.10.33.5 is my Cyberoam IP at remote location and i am not able to ping , i have taken a trace route and not able to find the issue as i am not much femilar , ping 10.10.33.5 at remote location devicec
I am giving the Configuration for both locaitons below :
10.10.1.36 - Corp Office 3750 Switch:
sh run
L3-#sh running-config
Building configuration...
[Code].....
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Mar 18, 2013
I've got a 3750x stack set up as my core switch (only a small-ish environment) - I'm shortly going to be deploying an enterprise wireless network with Corporate and Guest SSID's. I'm going to be putting all traffic from the Guest SSID in VLAN 244, and don't want it to have access to any of the other VLANs (1 (Legacy Eqpt), 4, 8, 12, 16, 20, 24, 28, 32, 248 & 252).
IP ranges for all the main VLANs are:
1: 10.0.0.x/22
4: 10.0.4.x/22
8: 10.0.8.x/22
12: 10.0.12.x/22
16: 10.0.16.x/22 etc etc (you get the pattern)
I'll probably give Guest traffic (VLAN 248) the IP range 192.168.10.x/22 (not because I NEED that many addresses, but it's easier for everyone to remember/understand if I keep the subnet masks the same all round). However I also have a CCTV VLAN (252) which already has the range 192.168.0.x/24, which some people in other VLANs WILL need access to.
So my question is: What is the syntax for the ACL on my 3750x (IP base - 15.0.2) to prevent traffic from VLAN 244 gaining access to any of my other VLANs. I'm making a broad assumption here that a layer 3 switch is perfectly capable of supporting that function? I need ALL the syntax for setting up ACL's - I've never done it before
My gateway device by the way is 10.0.4.1, and I do have inter-VLAN routing set up on the core switch (obviously).
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Jun 22, 2012
I have on 3750X stack with a few vlan
--------------------------------------------------
vvlansw06# sh vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Gi1/0/6, Gi1/0/10, Gi2/0/5
Gi2/0/6, Gi2/0/37
10 LAN_10 active Gi1/0/16, Gi1/0/17, Gi1/0/19
[code]....
where are the others vlan?
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Oct 7, 2012
I am migrating an existing LAN from 3550 to 3750X-12S. In the existing configuation, I´ve got some trunks with native VLAN <> 1. The native VLAN is also used for user data transport. With IOS 15.0(1)SE3 on 3750X I recognized, that per default behavior PVST is not active for a VLAN defined as native, even if the corresponding trunk is up and trunking. My current workaround is to add a "switchport access vlan" command on the trunk even this one never should become an access port. With this statement only the switch is activating the PVST for the native VLAN. For all other vlans PVST works as exspected. [code]
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Nov 23, 2012
I`m working on Dynamic Vlan Assigmenton the basis of end user authenticatedwhoc are part of specific AD Group in c ampus enviorment.Objective: Need to assign the vlan on switch port on the basis of authenticated users OU Group in Active Directory. Eg: There are 2 OU groups in AD, Sales and Administration. Authenticated user in Sales group should get Vlan 10 and user in Admininstration Group shoudl get Vlan 20.
Components:
Cisco 3750x/Cisco 4500
ACS Version 5.2
Microsoft AD
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May 21, 2012
I'm building a new colo presence with a full class C of public IP's. The idea is to connect to our ISP with a 3750x switchstack and they will be providing two ethernet drops that conect directly into two seperate switches on their side with HSRP and BGP at the routing level, so we will just point to their virtual IP (gateway address).I'm not sure how to either segment the public ip block or statically route each ip address and the interaction of vlans/svi with HSRP groups. Just use the switch at layer 2 or handle the internal routing with eigrp or ospf at layer3?
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Oct 8, 2012
Has anything changed in the way of defaults for creating a trunk port and spanning-tree between a 3750x and the newer 2960s? I have one of each I just took out of the box and applied my standard switch configuration template but I cannot get my VLANs that are configured on my 3750X to appear on the 2960S. I find nothing that is blocking and everything seems to be forwarding and I am running out of things to check.
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Mar 22, 2012
We have bought four Cisco 3750X-24 Switches with IP Base license for 2 offices (2 switches at each office). The offices are connected with 1 fiber pair and 2 CWDM units. We have 6 CWDM SFP (2x 1470nm, 2x 1490nm and 2x 1510nm). All the switches are up and running with 1 problem: the SFP's in the SFP+ position didn't work.
Only the gigabit port 1/1/1 and 1/1/3 are connected. Gigabit 1/1/2 stay disconnected. I already did some test with other SFP's and labels. Do I need to disable the ten gig ports in the configuration?
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Jan 25, 2012
How to get vlans working properly between sub-interfaces on a ASA and a trunk port on a switch.There seems to be issue with the VLAN's being assigned to the correct VLAN and this information being properly sent to the ASA over the trunk.
We seem to be unable to ping most of the interfaces except for one on the switch. Sometimes if we are lucky we are able to ping a host on a different vlan that is on the switch. This seems sparadic at best.
Logs on the ASA show traffic does not seem to be assigned properly to the correct sub interface. We have access rules on the ASA disallowing traffic not part of the same vlan. For example you will see networkA blocked on networkB when it really should be directed through networkA's sub interface.
Any example commands for the ASA and Switch for at least the basic requirements to enable all the VLAN's to communicate properly with the ASA?
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Jun 2, 2011
In change network topology, we are going to assign PC's Gateway as Switch (3750X) IP Address rather than server IP Address. Currently we have configured all Sytems's Gateway is Internet Server IP Address which we are going to replace with Switch IP as Gateway.Issue is while connecting specific application like team viewer in which application tried to send keepalive message to the live server and in case of switch/router IP as gateway. Connection doesn't established. However it is working fine when Internet Server IP treated as gateway.
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Sep 9, 2012
We have a 3750X VTP Server and the rest of the switches are clients.
Due to cabling issues, we have a switch (Switch F) that we can't connect directly to the 3750X so we have it connected through another switch. Everything is set to VTP client with the correct domain and password but this not-directly-connected switch isn't receiving any VTP VLANs.
Anything I need to do on Switch D so that Switch F can receive the VTP updates?
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Dec 11, 2012
We purchased a number of 3750X 48 and 24 port switches for the College Campus. Am finally getting around to getting them inserted on the network. Working with a WS-3750X-48PF-S and a WS-3750X-24P-L. Have them stacked with the 10Gb uplink on the 48 port switch. Have not been having fun.In the boot sequence, the switches recognize they are stacked, but as soon as they finish boot, I get the message on the 48 port switch: “Stack Port 1 Switch 1 has changed to state down.” Then “Stack Port 2 Switch1 has changed to state down.” Am noticing that I have a message preceding that: “Major version mismatch with stack neighbor.”The 48 port is running c3750e-universalk9-mz.150-1.SE3, HBOOT 12.2(53r)SE2.The 24 port is running c3750e-unversalk9-mz.122-55.SE3, HBOOT 12.2(53r)SE2Most of our 3750X and older switches are running 122-55 or 122.58 code. IP base or Universal. There is speculation that the problem is the 24 Port is Lan base, as the part number might indicate. (WS-C3750X-24-P-L.... I think that is the part number) and the 48 is IP base. Both switches are Universal, and my understanding is that they don't care about LAN or IP Base until you enable a function that falls in the IP Base domain. Then I have to call Cisco Licensing.For these switches, LAN Base is fine, based on the boot message, I feel the real problem is 122-55 versus 150-1 in the stack. So.. the question is: Do I downgrade the 48 port to match what we have in our environment, and what is on the 24 port switch. Or... Upgrade the 24 port switch to match the 48 port switch and have an installation that is not consistent with our environment? I do have two more edge closets to install with this purchase of 3750X 48 port switches.
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Nov 12, 2012
In change network topology, we are going to assign PC's Gateway as Switch (3750X) IP Address rather than server IP Address. Currently we have configured all Sytems's Gateway is Internet Server IP Address which we are going to replace with Switch IP as Gateway. [code]
Issue is while connecting specific application like team viewer in which application tried to send keep alive message to the live server and in case of switch/router IP as gateway. Connection doesn't established. However it is working fine when Internet Server IP treated as gateway.
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Aug 15, 2011
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
[code]....
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Mar 19, 2013
I've got a cluster of two WAP321, firmware 1.0.2.3if have been trying for hours to get up my captive portal running. finally I arrived - I switched from vlan 4001 to vlan 1 for my network using the cp login-page and success, opening my browser, using any url, the login page of my portal appears.Well portal is working, but I do have to change my vlan id to any other than the default management network! what do I have to configure?
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Dec 4, 2012
Short version is we cannot communicate between our subnets.We have a Cisco ASA 5505 we are using for our network router. We have a Netgear L3 switch behind that with 10 vlans. Each VLAN is on its own subnet. (10.0.10.x/24, 10.0.11.x/24, etc)We have PAT for each subnet to our outside interface. Each subnet NATs out properly currently.I have NAT exemption enabled for 2 of the subnets (eventually I will need all, but am just testing at the moment). I have tried multiple ways for the NAT exemption to allow all traffic from our inside VLANS. At this point in time I am trying to get "Engineering" to communicate with all hosts on "AuthUser". I can ping some hosts, but not as many as if I am directly on the interface. I can reach a port 80 service, but not 443. I cannot access anything via hostname or NetBIOS.What am I missing to allow higher security level interfaces to fully communicate with lower security level interfaces?
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Dec 13, 2012
I'm having trouble getting the dynamic vlan assignment to work on my 1242AG Cisco Aironet APs. I've seen multiple cases with a similar setup and configuration where it works just fine. I've tried everything I can think of. IAS and AD is running on Windows Server 2003.Everything works fine except the vlan assignment. Wireless clients successfully authenticate through IAS and Active Directory, but instead of being switched to the appropriate vlan the client stays in whichever vlan/ssid it originally connected to.PEAP is the authentication method, using MS-CHAP v2. Naturally I have the attributes in the policy set appropriately,[code] I've attached the config for the AP, which shows that I have two vlans/SSIDs set to cipher, aes, network eap, wpa, etc. I noticed that if the Tunnel-Pvt-Group-ID attribute is set to a vlan id that doesn't exist on the AP then the AP makes an event log saying so.
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Apr 16, 2013
We recently purchsed a SG200-26 and have several SPA303 with the 2 ports. The other component is a Sonicwall NSA3500.The SG200-26 is on an interface of the Sonicwall that interface has a primary of 172.20.3.x and the sub interface is 172.20.5.x. I labed the VLAN as 5?I went to the "Create VLAN" in the SG200-26 and also created VLAN 5 and under Voice VLAN the ID is 5.Then I went to the SmartPort and assigned GE24 as IP Phone + Desktop. That was OK. But when I go to the SPA303 and Enable VLAN and VLAN ID 5 I get Initializing Network. I am able to ping the 172.20.5.1 which is the gateway for the VLAN but still pull no IP. I also have an DHCP range assinged the subinterface.I also am using Cisco Configuration Assistant. I can see the switch SG200-26 and my IP set but it shows no IP. So I know that the CDP from the phone to the switch is working.
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Jan 3, 2012
I have a PIX 515e (8.0 (2)) and 1841 router (12.4(25)).I had the following setup working without issue:
[Internet] <-----> PIX <-----> 1841 <-----> [LAN]
I then tried to introduce VLANs and now I can not reach the Internet from the LAN. It seems that no nat translations are taking place.
-I can successfully ping the LAN from the PIX.
-I can successfully ping the Internet from the PIX.
-I can successfully ping the PIX inside_lan interface from the router
-I can not ping the outside interface from the router
-I can not ping the Internet from the router
I introduced the LAN side VLAN first and everything still worked. However, once i introduced the VLAN between the router and PIX, things have broken down. [code]
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Sep 5, 2012
Extended IP access list VLAN20
10 permit tcp any any established
11 permit icmp any any
20 permit tcp any 192.168.20.0 0.0.0.255 eq 80
30 permit tcp any 192.168.20.0 0.0.0.255 eq 443
40 deny ip any any log
[code].....
Above is the network diagram and access list for VLAN 20 and VLAN 30, applied on incoming direction of each valn.But still able to access other port which is not on access list, tried changing the direction with no luck.Inter vlan routing is enabled on CoreSwitch default router is 192.168.10.10
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Sep 25, 2012
I have a new 5508 that I am setting up. My first one from scratch.
Interfaces:
managment -> 10.10.10.10 ->dhcp 10.10.10.1
voice -> 10.10.7.1 ->dhcp 10.10.10.1
guest -> 192.168.1.2 ->dhcp 192.168.1.2
Local DHCP (via the 5508) is for the guest network while the management and voice use the Windows DHCP server.
My problem, Voice and guest work fine. I have two SSID's (one 802.1X and the other PSK) that use the management interface that will not get an IP. I have enabled dhcp proxy from the cli on the controller. I tried with the management VLAN tagged and untagged.
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May 5, 2012
I possess a RV220W (firmware 1.0.3.5) but I can't seem to work with the PPTP server on one VLAN only.
My default VLAN is in 192.168.1.1/24. I created a VLAN ID 10 in 192.168.50.1/24 inter-vlan routing : disabled and Device Management : disabled. (Menu Networking > LAN > VLAN Membership and Multiple VLAN Subnets).
Then I configured a PPTP server on the IP range 192.168.50.200 to 192.168.50.210.
To finish I created my user. (Menu VPN > IPSEC > VPN Users).
The PPTP tunnel is working, but on all my local network and not only the VLAN ID 10.
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Jan 28, 2013
When the users connect their laptop they are getting a authentication prompt but the switch is not changing the VLANs on the port after successful authentication.Below are the logs on the switch
Jan 28 2013 17:21:32.417 CST: RADIUS: Framed-MTU [12] 6 1500
Jan 28 2013 17:21:32.417 CST: RADIUS: Called-Station-Id [30] 19 "E4-D3-F1-0B-C6-0A"
Jan 28 2013 17:21:32.417 CST: RADIUS: Calling-Station-Id [31] 19 "84-8F-69-A8-BD-1D"
Jan 28 2013 17:21:32.417 CST: RADIUS: EAP-Message [79] 45
[code]....
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Mar 7, 2012
I have an RVS4000 version 1 with firmware 1.3.3.5. I have two VLAN's setup:
VLAN1 - 192.168.1.0/255.255.255.0
VLAN10 - 192.168.10.0/255.255.255.0
Ports 1 through 3 are configured for VLAN1 and right now I have one PC connected directly to port 1 and nothing connected to ports 2 or 3. Port 4 is configured for VLAN10 with a managed switch (also configured on VLAN10) connected to it. There are 4 wireless access points connected to the switch.
On the Setup->Advanced Routing page of the RVS4000 I have the Inter-VLAN Routing option set to Disabled. Yet when I connect to one of the wireless access points and receive a 192.168.10.x address, I can ping the PC connected to port 1 which has a 192.168.1.x address.
Also, I would like VLAN10 to not have access to the Management GUI on the RVS4000.
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Nov 9, 2011
i am facing a strange issue on cisco 2950 .IOS (tm) C2950 Software (C2950-I6K2L2Q4-M), Version 12.1(22)EA9, RELEASE SOFTWARE (fc1) suddenly my phone stopped working for DTMF tone, i mean when i dial a conference bridge lets say 6565 and then it ask for conference bridge code lets say 12345, it doesnt recognize the code and says code is invalid, SIP Proxy is Asterisk in this case.Currently my cisco switch port is configured for dual data + voice vlan, where DTMF dont work, sample config below [code]
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Nov 7, 2011
At our office we use seven Cisco 300 Series Small Business Switches. One main switch in the server room and one in each room. They work great! But I’m having difficulties getting the Auto Voice VLAN to work correctly. In fact, it seems to works straight away on a PoE model, but not on the non-PoE models.
Switch (main server room):
Cisco SG 300-28 (PID:SRW2024-K9)-VSD
Switches (one in each room):
Cisco SG 300-10 (PID:SRW2008-K9)-VSDCisco SG 300-10 (PID:SRW2008-K9)-VSDCisco SG 300-10 (PID:SRW2008-K9)-VSDCisco SG 300-10 (PID:SRW2008-K9)-VSDCisco SG 300-10 (PID:SRW2008-K9)-VSDCisco SG 300-10P (PID:SRW2008P-K9)-VSD
All these switches use firmware v1.1.1.8. The switches in each room are connected to the central switch by Link Aggregation. The main switch is configured in Layer 3 mode and all the others in Layer 2 mode. We have a lot of VLAN’s configured. For this problem allow me to describe only the two that are relevant.
VLAN 102 - Internal Network (Clients)VLAN 104 - Internal Network (Voice) The switches on each room are mainly used for clients, printers and IP phones. The clients and printers should operate in VLAN 102. The IP phones should operate in VLAN 104. For this to work I have the 10 port switches configured as following.
GE1 – Trunk – 102U;104TGE2 – Trunk – 102U;104TGE3 – Trunk – 102U;104TGE4 – Trunk – 102U;104TGE5 – Trunk – 102U;104TGE6 – Trunk – 102U;104TGE7 – Trunk – 102U;104TGE8 – Trunk – 102U;104TGE9 – Trunk – 1P (LAG 1, with 1U;102T;104T)GE10 – Trunk – 1P (LAG 1, with 1U;102T;104T)
The network is fully routable. A DHCP Server is available. Each VLAN uses DHCP relaying. If we statically assign a VLAN to a port, that just works fine. Auto Voice VLAN is enabled with VLAN ID 104. All switches are configured the same. But this is what occurs…
When I connect an IP phone on the SG300-10P the IP phones are assigned to the Voice VLAN ID 104. If I would connect a desktop to that same port it is assigned to VLAN ID 102. Exactly as it should.But when I connect an IP phone on a SG300-10 the IP it is assigned to VLAN ID 102. But I also noticed that in some cases they are assigned to VLAN ID 1 and don’t get an IP Address. That depends in which order I change settings. The port its VLAN membership is then even changed to 1P. Although the port is recognized as an “IP Phone” by the smartport feature. I have noticed it does make difference if I modify the smartport macro and change the native_vlan paramater from "1" to "let's" say "102". That seems to affect it. Of course it may be just coincidence. What am I doing wrong? How should it work?How should you actually configure each port on a switch? (trunk?, Tagged/Untagged VLAN?)If you do not use Telephony OUI. Do you still need to configure the macros on the smartport defenitions?
I have tried about everything. I have also tried Telephony OUI, but it doesn't make any difference. I just can't get it to work properly on the non-PoE switch.
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Jun 3, 2012
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.
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