2 VLAN, 1 gateway, no way...

Similar Questions

• VLAN / VXLAN "gateways". For DLR or not?

  Hello

  I'm asked about it for a while when connecting physical devices to our VMware NSX platform.

  What are the differences by putting a portgroup distributed with the ESG as opposed to a logical switch (where a DLR is required to do VLAN / VXLAN bypass).

  The first is not really fill (only for sending), there he sanctions the bandwidth?

  Because the DLR instance is running on a host at a time, the maximum flow is the host. How is this related in regards to a portgroup?

  I have a feeling that it might be better to use a DLR, since information is then included in the process of the NSX, but no hard argument.

  Any clue?

  See you soon

  When you connect to a group of ports distributed to the GSS, it's like an uplink switch. When you connect a GSS to a logical switch its more like plug in an additional device in a switch. Logical switches can take advantage of the distributed routing features that prevent traffic through. That's why you'll see NSX with the GSE drawings connected to a logical switch of 'transit' and all other logical switches connected to the DLR.

  The only way to fill a VXLAN and a VLAN physical is through a DLR. You can't really get the same result with a GSS. The GSS will have another segment of L2 on each interface while fill with a DLR will merge a segment a segment of LAN VIRTUAL L2 VXLAN L2. With the bridged DLR, you're right. You will be limited to the bandwidth of the host. You can over come this limitation during the delivery on the GSS using AREA.

• PowerConnect 6224 VLAN config / default gateway

  Hello

  I am new to configuring a VLAN and work with DELL going on so please forgive my ignorance.

  I joined a small agency that currently has a flat structure networking including 1 6224 linked to two 5548 one is connected to three 3548 (access), and the other is connected to a server. The 6224 connects to a proxy (default gateway), and then on the Web. All devices are currently on a 192.168.78.0 24 network with ip default gateway 192.168.80.1

  We want to segment the network using two VLAN initially. VLAN 1 user "80" and vlan 1 safety '70' and I want to clarify a few things before that I try:

  1. can you stay the ip on the network switch for vlan user ex: 192.168.80.123 or should I create a vlan separate management?

  2. I know in order for the inter - vlan, the ip of the gateway routing vlan must be on the 6224 and I then have to configure a default route to the proxy. The proxy must be on one VLAN separate or could I leave on VLAN 80 and change the ip address another que.1?

  Thanks in advance.

  I did it several times myself.  You can do almost an infinite number of ways, but it will be better to stick to certain typical networking practices.  Here is the version digest readers of what would be preferable to do so.

  1 enable routing on the switch stack.

  2. make a 80 VLAN for your network 24.80.  Assign the IP 192.168.80.1 to this VLAN.  In this way, customers will now be a ".". 1' default to the network gateway, they are on.

  3 make an another VLAN 70 for your network 24.70.  Assign the IP 192.168.70.1 to this VLAN.  This will be the default gateway for the network.  Repeat for however many VLANS / networks you want to.

  4. create a separate VLAN for his own 'bubble' network between the switch and the upstream proxy server.  (Lets call him a dummy VLAN 100 with an IP range x.x.100.x 29.  It can be just a little/29 block or something or 24 if this is confusing. Configuring the ports a few ports 'access' for this VLAN for that no marked traffic pass over this network.  Set x.x.100.1 to your Proxy Server and x.x.100.2 to your switch, then make sure you have directions on both sides about where traffic should go.

  5. save your configuration so that you have to rebuild it after a reboot.  :-)

  It will be best to set your expecations about it.  You want realistic during a weekend/maintenance window.  ARP cache and other issues can make for some downtime.  In addition, there are certainly other ways to do it, but that may be hurtful on the road when you need to increase or scale.  Two years on the road someone wondered why a default gateway is on a few eccentric IP, or there are errors of routing intermentent, etc..

  Powerconnect worldwide, just be clear what is the difference between a port of "access" to the port of 'general', and are a port 'trunk '.  Conditions may be different from the Lim to make, and if one comes to tell the world of Cisco, this may be a little different.

  Finally, don't forget to come up with a good procedure for this during your maintenance window.  Come up with a good plan documented and so well thought out, when run you it, it will be nothing more than a task in office project.

• Changes in the incoming packets to address SG300 inter - VLAN routing and MAC

  Hello

  I SG300-20 operates in Layer 3 mode

  Vlan1 is not used

  Gateway Internet is VLAN211

  Customers are in other VLANs

  Switch is the default gateway for clients and itself has internet gateway as default route.

  The switch MAC address is XX:XX:XX:XX:XX:63

  When the client sends traffic destined for Internet MAC address in outgoing packets is XX:XX:XX:XX:XX:63

  But in incoming packets the source MAC address is XX:XX:XX:XX:XX:69

  Why change? And how can I set the switch to use MAC XX:XX:XX:XX:XX:63 address?

  I finished the event and found that it does not change as expected. When you use the switch to Layer 3, routing, with or without him as your default gateway, it will happen.

  I tested two different VLAN in two different ways, and every time that I ping via the switch to a different subnet, the MAC source on the return package was different on the last two. This is due to the fact that the return traffic through a different interface on the switch.

  Currently, there is no option to change this.

• WRVS4400Nv2 DHCP Relay on 2nd VLAN

  Hello

  Here's what I'm trying to understand:

  My network is set up such that I have a wireless network in the VLAN 1, which is the main network we use.  The subnet is 10.5.1.x.

  My goal is to set up a wireless network completely isolated comments, but it would work better.  What I'm trying to do now, is that I created a VLAN separated (VLAN 2, ranging 10.5.2.x IP) and activated DHCP on the WRVS4400N.  However, in comments network, he is always picking up a 10.5.1.x IP which will be distributed by the server DHCP (10.5.1.5, Win 2003) and yet all traffic to our private network routing.

  Here's what I put:

  Wireless > security settings > network (SSID 2) comments

  • Wireless Isolation (between w/o SSID VLAN): enabled
  • Insulation (within SSID) wireless: enabled

  Setup > LAN > VLAN 1

  • Router IP 10.5.1.1, CAMERA IP WiFi 10.5.1.3
  • DHCP relay for 10.5.1.5

  Setup > LAN > VLAN 2

  • 10.5.2.1 IP router
  • DHCP enabled for the subnet 10.5.2.x
  • Relay DHCP option is grayed out (don't know why)

  Setup > Advanced Routing

  • Routing inter - VLAN: disabled

  A way to solve this problem would be nice.  I don't want traffic through our internal network.  Ideally, if I get Windows server to distribute addresses of 10.5.2.x, it would be perfect, but I do not know how to configure it for such.

  If anyone has any ideas, that would be great-thanks!

  Matt

  Yes... Here is an answer I got Cisco engineering support:

  The issue you reported is a known problem.
  Engineering and development are aware of this problem and provided the following information:

  DESCRIPTION OF THE PROBLEM:
  If the WRVS4400N is configured with multiple VLANs, and these VLANs are mapped to different SSIDS, the user cannot use an external DHCP server to provide IP scopes for these VLANS.
  Hosts connected to two SSID will get the native DHCP server IP address only.
  The workaround for this is to use the DHCP server integrated for all the VLANS defined on the WRVS4400N.

  Note: This is not a bug but rather a limitation of product. The developer confirmed that the WRVS4400N works as expected.

  A difficulty regarding:
  Because of the wireless switch port and the trunk by using different chipset, it is not possible to provide a fix for this problem.
  In the future, engineering & product Dev teams will try to use the same chip set (same provider).
  This feature has been targeted for the next new product.  No solution will be on the current hardware.

  Note: If this function is vital for your deployment and you want to recover the cost of the WRVS4400N, please send the serial number and a copy of your proof of purchase and we will gladly provide a refund.

  Best regards

  Alex Delano

• 6500 FWSM - ping interface VLAN

  I pass the FWSM 6509e catalyst module. I set up 2 VLANS as follows.

  HR VLAN ID 16 - gateway - X.X.16.1

  Management VLAN ID Gateway 18 - X.X.18.1

  I try to do a ping from host in 16 vlan to a host to vlan 18 which is successful, but I can't ping 18 bridge vlan that is X.X.18.1. why it is so?

  Please answer.

  Okay, that's fine, please rate if useful.

  Concerning

  Farrukh

• Own VLAN for the Service console

  Hello

  I was reading the esx3 best practices document and saw in it that it was recommended to the Service console on its own VLAN. I was wondering why... I can see why this with vMotion, but I'm not sure for the SC.

  Thank you

  The Service Console is a VM with access to the ESX kernel. If it is compromised, the attacker a free course on your virtual machines and VMFS leading to back and potential data theft. Using a VLAN independent is a way to strengthen security for the Service Console with the isolation.

• SF300

  I have a question since last 2 on sf300.

  The problem is that sf300 isn't compatible full dhcp, so I put the different internet modem.

  I plugged an internet modem in vlan 1 kind of this vlan, users can access the internet and default gateway is nothing else than the Internet modem ip.  user in vlan are not communicate with other vlan because other users of vlan default gateway is the ip address of the Interface.  How can I give access to vlan 1 to access the other vlan.

  See attachment.

  I used a static route in any one or all 3 devices.

  Thank you

  Hi Sir, the switch cannot perform NAT functions, so only the vlan connection to the modem can work this way. The default gateway of the connecting servers must be that of the SVI switch while operating mode layer 3. The modem would require the static routes (not the switch) If you want as virtual LANs to internet connection and intervlan communication.

  -Tom
  Please mark replied messages useful

• Isolated VSwitch, that spans multiple hosts

  

  Hi all, pls pardon drawing by hand

  I have a few guests of ESXi 4.1 with vCenter.

  The case is in the current LAN, there is already a DHCP server. I don't want the virtual machine in the hosts to be assigned by the DHCP server.

  So, I thought to put the virtual machine in single vSwitch (vSwitchB). And the creation of a VM (virtual GW machine) as a gateway for the virtual machine to talk to LAN.

  Is there a better approach? Can I create a distributed switch which acts as a single vSwitch?

  Thank you.

  fajarpri wrote:

  Thank you, Robert.

  VLAN seems a good way too. But I'm not familiar with it. Should I do something about the physical switches for the VLAN?

  Reason I ask is that I have no control over the switches.

  Yes, VLAN must be created on the pSwitches and entered on vSwitches/PortGroup.  GW router must also be configured to route between the VLANS as necessary.

  Your idea will work, if the GW virtual machine knows how forward the traffic (route).

• Confusion of Network Configuration.

  OK, here's the deal. I have an ESXi host in a data center away from me. He is sitting behind a couple of pretty good/great firewall with a number of IP addresses external, are attributed to him. There are already a few virtual machines on the ESXi host with their own connections to the internet. They are a production environment and cannot be brought if ever that. Which asked me to do, is to emulate and then to transfer our existing to the ESXi host physical network. Our network consists of a server, ISA Server 2006, a couple of DCs, a pair of Exchange servers in a FE / BE deployment and a few Certification authorities. What I would like to know, is how I configure VMs for these machines so that they would work just like their own little network, not interfere with production machines and have all their traffic through the VM ISA of the funnel. Access to the outside world would be implemented virtual machines with their own addressing scheme of dedicated and then subnet/ip to have the external IP address of the VM ISA pointing at them to use the VM ISA as a gateway on the subnet ESXi allowing enough? Horsepower and bandwidth are NOT a problem what so ever with the data center or ESXi host. I was given pretty much free rein during the purchase of the ESXi host and the security of the data center.

  Will be my virtual machines on their own subnet, and using gateways configuration plan be enough?

  Thanks in advance.

  Looks like you want to use VLAN vSwitches or extra.  Either way should work perfectly.  Additional VSwitches require additional physical NIC, which not to be an option.

  Road of VLAN:

  Configuration-> network

  Select the Virtual Machine port group that contains the virtual machine

  Assign a VLAN ID

  Create another Virtual Machine port group and assign a different VLAN ID.

  Add an additional NETWORK card to the ISA server computer and place it in the new Port Group.

  Now the ISA server computer has a NETWORK adapter in each network.

  Use differnet subnets for each VLAN.

  This way both groups of computers can use the same ISA Server and do not interfere with each other.

  Add the VLAN ID to the vSwitch shouldn't affect the virtual machine in the Port Group. But if these VM communicate with anything outside the host without going through ISA, they must be added to this new VLAN one way or another.

  If you have found this or other useful information, please consider awarding points to 'Correct' or 'useful '.

• Use of the USB in Windows 95

  I have the Windows 95 b, which came on a new gateway computer, way back when. I have two USB ports on the back. When I plug a flash drive, the computer is not see it. But when I boot with the flash drive is plugged in, I get an error message from player B. It's a 16G flash drive that I use. According to the BIOS page it is equipted to handle the plug-and-play devices on the USB ports. Activation of plug-and-play option to WOOD makes no difference, of course, flash drives weren't around then. Is a flash compatible memory drive, or not with that?

  It's a flash fat 32 drive. I think I have this problem to be solved.  I had this same problem with another computer, given that I made this post. In upgrading to a newer operating system, the computer immediately recognized the flash drives. Who told me that it was a software problem. The necessary driver was not included in the package of Win 95, was not then in use flash drives.

• C3750 interVLAN routing - no internet access for customer switches

  I have a stupid question with my itinerary (intervlan).

  I have a test configuration to a stack of C3750 as core and a few 2960's like access switches.

  http://users.fraeco.be/setup.png - switch at the bottom is the new network (VLANNED). The switches on the left is the current network of production (10.1.1.0/24)

  The C3750 to the router is a 30 network.

  There will be 6 VLAN but at the moment I have one configured. VLAN50 - 10.5.1.0/24

  The C3750 I can ping my network current production, internet, other VLANs in the testsetup... Everything.

  Of the C2960 I can ping other VLAN, join the entry door, reach the router, reached the currenct production network. But I can't reach internet. I have configured 'ip default-gateway 10.5.1.254' on the C2960. C3750 relevant config is down below.

  How can I reach other networks connected to the router and the internet not switches to access? I'm trying just to ping 8.8.8.8.

  !

  IP routing

  !

  !

  GigabitEthernet1/0/1 interface

  No switchport

  address 172.16.1.2 IP 255.255.255.252

  !

  !

  interface Vlan50

  IP 10.5.1.254 255.255.255.0

  !

  !

  IP route 0.0.0.0 0.0.0.0 172.16.1.1

  Hi, Maxim,.

  I have no idea about your configuration exactly but for the account information that u as far as I can tell... Configure all the respective host to its ip address vlan respective gateway.

  There should be a static route pointing to the router on the switch of the MLS.

  And also, make sure that it should be static (or entered dynamic in case you use PGI) of all subnets of VLANs pointing to the ip directly connected inverter MLS.

  It will certainly work.

  Thank you

  Amit

  Please rate if this post would be useful.

• IPS inline & port interface port trunk Switch

  Hello

  Is it possible to configure the IP addresses as the topology below? SW1 and SW2 SPI connection ports is in trunk mode. I would like to configure the IPS in inline mode pairing interface. (not the vlan pairing mode)

  SW1 - IPS - SW2

  Kind regards.

  Yes, this method is fully supported.

  If you want to control all the VLANS with a single virtual sensor, then assign the pair inline interface to the virtual sensor.

  If you want to monitor the VLANS with different virtual sensors, we support groups vlan on this pair of inline interface.

  Do not confuse "inline-pair of vlan" with the "groups of vlan inline on a pair of inline interface.

  The "pair of vlan inline" will pair 2 VLANS on the same interface. When a package arrives in the sensor it will be sent back the same interface with its header vlan has changed.

  The "groups of vlan" on a pair of inline interface don't change headers for VLANs.

  They are only used for virtual local networks, so that the Group of VLAN can then be assigned to a specific virtual sensor.

  You could then take a group of VLANs for your office network employees and assign them to vs0 and take a second group of VLAN for your DMZ and assign them to vs1.

  You can place a vlan unique within each vlan, or you can place several VLANs within each group vlan.

  But it only made sense to have 4 groups of vlan, because you have only 4 virtual sensors on most devices (a bit like the 4215 have 1 virutal sensor so you can make groups of vlan on the 4215).

  I also recommend that you change your virtual sensor and set the Inline TCP Session tracking mode on "Interface and Vlan. In this way the sensor will separately monitor connections on each vlan. This is necessary if a router can route traffic between several VLANs. Without this setting, the sensor will become confused if it sees the same connection of multiple VLANs.

• ISE node failure & pre authorization ACL

  Hi all

  I would like to know who, in what should be the best practice for the following configuration.

  (1) access for devices/end users network if both nodes ISE become inaccessible? How we can ensure that full network access should be granted if the two ISE nodes become unavailable.

  (2) what is the best practice for setting up pre authorization ACL if IP phones are also in the network?

  Here is the configuration of the port and the pre authorization ACL which I use in my network,

  Interface Fa0/1

  switchport access vlan 30

  switchport mode access

  switchport voice vlan 40

  IP access-group ISE-ACL-DEFAULT in

  authentication event failure action allow vlan 30

  action of death event authentication server allow vlan 30

  living action of the server reset the authentication event

  multi-domain of host-mode authentication

  open authentication

  authentication order dot1x mab

  authentication priority dot1x mab

  Auto control of the port of authentication

  periodic authentication

  Server to authenticate again authentication timer

  protect the violation of authentication

  MAB

  dot1x EAP authenticator

  dot1x tx-period 5

  *****************************************

  IP access-list extended by DEFAULT ACL - ISE

  Note DHCP

  allow udp any eq bootpc any eq bootps

  Note DNS and domain controllers

  IP enable any host 172.22.35.11

  IP enable any host 172.22.35.12

  Notice Ping

  allow icmp a whole

  Note PXE / TFTP

  allow udp any any eq tftp

  Note all refuse

  deny ip any any newspaper

  Thank you best regards &,.

  Guelma

  Hello

  On question 1, since you use 'authentication mode host multi-domain' then "action dead event server authentication allows vlan X" is the way to go.

  But if you use "authentication host-mode multi-auth" then you should use "action death event authentication server reset vlan X"

  On question 2, it is not mandatory to use pre permission ACL. My current deployment have IP phones, since I use the profiling and CDP RADIUS then ISE can detect and allow the IP phones, even if the switch blocks all packets. "Why I didn't need pre-authorization ACL.

  Please rate if this can help.

• RADIUS CoA Port query of rebound

  Hello

  I have a question about Port CoA RADIUS Bounce.

  I intend to deploy 802. 1 x with ISE 1.3 to:

  • 802. 1 x authentication business desktop PC (with client anyconnect installed for user authentication and computer) - on successful authentication machine, ISE assign dynamically a VLAN
  • Phones IP Cisco profile

  So that an authenticated corporate office pick up assigned dynamically on its VIRTUAL LAN IP address I was thinking of using CoA Port Bounce. If this office was connected via a Cisco IP phone profile successfully, am I right to say that the rebound of Port resulting will also affect the phone (phone to unregister from callmanager)?

  Thank you
  Andy

  Hi Andy, if you then use PoE port-bounce the phone certainly would network and handler calls. The phone would essentially be down then put under tension and back to the top.

  Now, that being said, you should keep in mind that a port-bounce would eliminate the existing session to dot1x and will be a new session will be initialized. So, to the point of termination would be left from the original VLAN again and obtaining the new VIRTUAL local network after authorization :) So I guess what I'm trying to say is that port-bounce is not the solution for this. Instead, you should consider:

  1. with the help of the DACL instead of VLAN dynamic. This way you can have everyone in the same VLAN but different DACL allows to define the network access

  2. continue to use the VLAN dynamic but keep in mind that some "dumb" devices does not detect the change VLAN, so do not enter a new IP address. The good news is that most modern devices can detect the change VLAN and should enter a new IP address. For example, you should not have problems with Windows 7 and new devices

  My recommendation is to go with the option #1, same as always, which worked for me.

  I hope this helps!

  Thank you for evaluating useful messages!