vSwitches and network traffic internal vs external

Similar Questions

• Handling VSwitch and network

  Hi, I have have a question: How fact un Working VSwitch , If two virtual machines to communicate between them. If the data on the network is sent to the NIC and then the material or communication is managed in the VSwitch?

  
  

  Greetings from the Germany!

  
  

  Michael Burkhardt

  
  

  If virtual machines are on the same vSwitch and VLAN traffic is not struck the physical network adapter.  If virtual machines have been on different vSwitches, traffic would hit the physical network.  Even if the virtual machines are on different VLAN traffic would pass through your router.

• VMware port group vs vswitch ensures networking nic

  Hi all

  I'm a bit confused as the eve of NIC on vswitch and network card set watches over the port group

  for example

  If I have an ESXi server with 3 vmnic1 network card, vmnic2 and vmnic3

  and I have set up a 'network' vswitch, where I put vmnic1 and active vmnic2 and vmnic2 as before

  I create 1 portgroup

  (1) "data1" where I put on the vmnic3 level as asset and vmnic1 portgroup, vmnic2 as Eve

  How things work it seems door as vmnic 3 of Eve upgraded vswitch and intervenes at the level of the portgroup

  can clarify you for me please?

  On the group level on the port you van ignore the order of failover that is set to the level of vSwitch, so in this way, you can define a failover different/NIC teaming for any group of port defined on this vSwitch.

  It is not necessary to do so, if your Setup doesn't require it.

• Management network on vswitch even as traffic of the vm?

  Research on how our environment Vsphere has been configured and I noticed that they have the management network on the same vswitch because the traffic of the virtual machine. There are currently 2 connected network adapters this vswitch.

  I know that the configuration is not recommended, I wonder if I should change and what the best way is to change it?

  Move management traffic to a new vswitch or move the traffic of the virtual machine to a new vswitch? I have 2 more physical network card, so I can add an another vswitch with redundancy.

  Thanks for your suggestions.

  Kevin

  It would be best to move the traffic of vm, simply because when you change your management traffic, literally creating a new interface vmkernel, and by assigning the gateways and which can lead to a decline in the connection.  Simply create a new vSwitch for traffic of the virtual machine, create a new portgroup and re - assign the virtual machine.

  That being said, it is 'better' keep the two separate, but not a condition difficult.  If you have network cards, then this is definitely a "nice to have".

  -KjB

• Networking ESXI establish two vswitches and 2 NICs on different networks.

  OK hope someone has an idea.

  Have two network cards and just connect the second network card but my setup requires that the first NIC physicle

  10.10.0.0 network, 255.255.255.0 subnet, Gateway, Vswitch 10.10.0.105 0.

  the second nic physicle

  100.100.0.0 network, 255.255.0.0 subnet, 100.100.0.1 gateway Vswitch 1

  I need the machine virtual first Vswitch network and some on second Vswitch network.

  At the moment I don't see how to set the ip address of the second network card or the gateway?

  Is there a way to do this?

  I have the updated Vswitches in place ok and network adapters are attached to the different vswitches.

  When a physical NETWORK card is assoiciated with a vSwitch, he is forced to behave like a shared on a physical switch port. However, there is more no uique to the physical NETWORK adapter configuration. It passes the traffic of the VMs and the core of the virtual machine to the physical network as an uplink. MAC addresses and IP addresses inside the frames come from virtual NICs attached to the virtual switch.

  You define IP addresses and default gateways within the virtual machines and any VMkernel ports connected to the virtual switch.

  Another way of thinking, is pretending the ESXi server has swallowed a bunch of switches and cards network is now the switch ports. You connect a box full of switches to your physical infrastructure, not a 'normal' server

  / Mark

• ipconfig/all and the ping command is not recognized, error: internal or external command.

  Original title: back command.
   
  Then I run ipconfig/all and show the command ping at the command prompt ipconfig/all error is not
  recognized as internal or external, command an executable program or a file of commands in windows xp professional sp3

  Hello

  These two commands are protected against accidental removal by Windows, that is if they get deleted Windows will work just add in the C:\Windows\System32 folder.

  At the command prompt, try to change this folder by typing cd C:\Windows\System32 (and then hit return) before trying the command ipconfig or ping.

  If this lets then run you your 'path' is probably messed up.

  You may first want to set a system restore point...

  http://support.Microsoft.com/kb/948247

  .. .in case spoil you things and that you want to restore to it...

  http://support.Microsoft.com/kb/306084

  ... then...

  • Hold down the Windows (between Ctrl and Alt) key and press Pause break
  • Click the Advanced tab
  • Click the Environment Variables button
  • In the section system variables, click on path (you may need to scroll)
  • Click the button change

  Paths are separated by semicolons (;), is a path to % SystemRoot%\system32? If not, add one (make sure to separate with semicolon). Click OK (three times) to get out. Restart the computer and try again without the cd above command.

  Tricky

• How to monitor and lock the network traffic

  I am connected to a network that is always connected to the internet. I needed to display the bytes sent and received and also to block network traffic by not using only Internet. (Vista)

  Hello

  There are some send receive info on the status screen is in the Conncetion Local adapter.

  Look here to the right, http://www.ezlan.net/Win7/status-nic.jpg

  If you need something more complete this freeware is very good, http://www.softperfect.com/products/networx/

  Regarding the disconnection of the local network.

  If your computer is not configured for sharing, then it cannot connect to from the local network first.

  If not, right-click on the network map, and then click on turn off (do the same after to activate).

  Jack-MVP Windows Networking. WWW.EZLAN.NET

• Can you get a sata adapter and replace it with a PCI Express so I can install a graphics card in the caddy hd for my laptop. Y at - it means to get an internal or external graphics card?

  Hey!

  I know that you can remove a dvd cart and replace it with a HD you can get a sata adapter and change a PCI express so I can install a graphics card in the caddy hd for my laptop. y at - it means to get an internal or external graphics card? I do not have a slot express pci laptop because a laptop is relatively new.
  
  Original title: laptop computer graphics card
  other cool mods I can do for my laptop. I've already upgraded to ssd and ram and processor.

  Hello

  I do not know such an adapter exists, but it's a hardware problem - I suggest you contact the manufacturer of your laptop with this issue, as well as questions about additional upgrades, you could do.

  These are all the hardware problems, and this site deals with software issues related to the Windows operating system. I'm sorry this isn't the answer you're looking for, but...

  Let me know if this helps you.

  Kind regards

  BearPup

• Hub and spoke VPN network traffic between two points talked

  Hi, I have a star VPN network topology, and all traffic is remote office to the data center,

  I have a request to build a tunnel between two remote sites to access some servers between two remote sites,

  Can I just change the ACL of valuable traffic to to include say a Cabinet to Office B in rule Cabinet a Datacenter and Office B tunnel to tunnel data center.

  In doing so, I can avoide the tunnel between two offices (and B)

  See you soon

  Hello

  You can make the traffic between the two rays go through the hub or build a new tunnel between the rays.

  If the hub is an ASA you must authorize same-security-traffic intra-interface permits

  If the hub and the spokes are routers, you can also use DMVPN to dynamically create a tunnel between the spokes when necessary.

  Federico.

• total number of bytes of network traffic for a given period and given a vm guest

  Hello

  I want to see the total number of bytes of network traffic a given virtual machine generates in a give period.

  I think it's possible with a great metric but don't know how.

  Any help is welcome.

  Kristof

  This is for vrops x 6

  1. create a metric configuration

  
   
      
  
          
          
          
      
   

  2. create a new dashboard with a list of objects and graphic metric

  3 edit the object list widget, and the filter object type\Virtual Machines and save

  4. change the metrics graph and select the metric config that you created in step 1 in the metrix configuration box and save it

  5 in Widget interactions select list of objects in the menu drop-down and click on apply Interactions and save the dashboard

  When you open the control panel and select a virtual machine from the list (or search for it in the filter), it will display the average amount of data received and transmitted in Kbps in the metric table. Use the controls to date to specify when you want to see the data to and from.

  Hope this helps

• Should separate you network traffic and storage?

  To give some background, we use FCoE, and each server has 6 adapters. The way it was intended was 2 for network, storage 2 and 2 to the DMZ. The subject was brought on the use of network and storage 4 to increase the flow.

  Could someone point me to the best practices of the present or advice if they believe that it should be separate or combined?

  Thank you

  I always recommend using a disparate network for IP storage (or at least one VLAN unique), unless you have some really strong QoS that will ensure you packets of storage (as with something like a blade case). The problem is that storage is much more sensitive to latency as (most) network traffic, and contension could cause significant problems.

  http://blogs.VMware.com/Networking/2011/11/VDS-best-practices-.html

  IP storage traffic is via the ports of vmknic and this traffic varies with disk i/o requests. More data are transferred to configuration-to-end jumbo frame, with each Ethernet frame, reducing the number of images on the network. Plu framework reduced the load on the servers and targets and improves the performance of IP storage. Congested and low speed networks can cause latency issues that disrupt access to storage over IP. It is recommended to provide path at high speed for IP storage and avoid any congestion in the network infrastructure.

• 'portqry' is not recognized as an internal or external command

  I can't launch the command portqry from my Win 7 Professional computer. My setup is home network and have 3 computers (1) Win 7 Professional (2) Win 7 Ultimate cannot run the command from any of my computers.    This is the message:

  Microsoft Windows [Version 6.1.7600]
  Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

  C:\Windows\System32>PortQry
  'portqry' is not recognized as an internal or external command
  operable program or batch file.

  C:\Windows\System32 >

  Any Councillor will be deeply appreciated

  Bob

  This command is not included in Windows 7.  First of all, download and install it.  Then, change directories to the location.  By default, it is C:\PortQryV2:

  CD /d C:\PortQryV2
  PortQry

  Boulder computer Maven
  Most Microsoft Valuable Professional

• VPN remote access - no network connectivity internal!

  Hi Experts,

  I understand that it is a very common problem when considering the implementations of IPSec VPN for remote access using Cisco VPN Client. But for the last six months, I have tried to configure remote VPN access to as many sites customer and gets stuck to the top with the same question!

  -The remote VPN Client connects, authenticates successfully to the local user database (to make things easier, I used the local user authentication), the tunnel is set up (I could see the exit of the isakmp #show her as a AM_ACTIVE ). So I think that the parameters of encryption and authentication for Phase 1 /Phase 2 should work because the tunnel is having successfully established

  -Now comes the question, no connectivity to the internal network. I tried all the possible solutions, that I could find online.

  1. the most common problem is NAT - Traversal not active

  -Compatible NAT - T with the time default keepalive of 20

  2. None of the configurations NAT to exempt remote VPN traffic

  -A ensured that Nat configurations not present in configuration and internal network 192.168.1.X VPN traffic networks VPN 192.168.5.X /192.168.10.X being exempted NAT

  3-Split tunnel configurations

  -Reconfigured Split tunnel access list configuration Standard access list expanded (although not required as a Standard access list is more than enouugh, if I'm not mistaken) to allow traffic selected from 192.168.1.X for 192.168.5.X/192.168.10.X that will create routes on Client that allows users to simultaneously access VPN resources and access Internet VPN client. The Tunnel from Split network group was added again to the group policy.

  4 enabled Perfect Forward Secrecy (PFS) /Disabled

  . It may be an extra charge, it has been disabled / enabled

  5. the road opposite Injection

  -Ensured that a temporary reverse route has been injected to the routing table by allowing the reverse Route Injection to insert automatically the temporary static routes to the remote tunnel using the command set reverse road networks

  A few more interesting things were noted:

  Encrypted and Bypassed packages found when a continuous ping started the ASA inside the interface.

  No decryption happens of the VPN Client, which means that there is no answer back from the network traffic statistics.

  Decryption and packages are found be increasing when I try to ping of the IP address to the customer (192.168.0.10) has published the SAA. But on the SAA, I'm not back any response and showing as? . So that would mean that there is communication of ASA to the customer via the VPN tunnel while no communication is happening from the internal network to the customer

  

  The entire configuration is shown below

  ASA Version 8.2 (1)
  !
  ciscoasa hostname
  activate the encrypted password of AS3P3A8i0l6.JxwD
  2KFQnbNIdI.2KYOU encrypted passwd
  names of
  !
  interface Vlan1
  nameif inside
  security-level 100
  IP 192.168.1.1 255.255.255.0
  !
  interface Vlan2
  nameif outside
  security-level 0
  address IP X.X.X.X 255.255.255.0
  !
  interface Ethernet0/0
  switchport access vlan 2
  !
  interface Ethernet0/1
  !
  interface Ethernet0/2
  !
  interface Ethernet0/3
  !
  interface Ethernet0/4
  !
  interface Ethernet0/5
  !
  interface Ethernet0/6
  !
  interface Ethernet0/7
  !
  passive FTP mode
  access-list extended SHEEP allowed ip 192.168.1.0 255.255.255.0 192.168.0.0 255.255.255.0
  ST1 list extended access permitted ip 192.168.1.0 255.255.255.0 192.168.0.0 255.255.255.0
  pager lines 24
  asdm of logging of information
  Outside 1500 MTU
  Within 1500 MTU
  IP local pool testpool 192.168.0.10 - 192.168.0.15
  ICMP unreachable rate-limit 1 burst-size 1
  don't allow no asdm history
  ARP timeout 14400
  Global 1 interface (outside)
  NAT (inside) 0 access-list SHEEP
  NAT (inside) 1 0.0.0.0 0.0.0.0
  Route outside 0.0.0.0 0.0.0.0 X.X.X.X 1
  Timeout xlate 03:00
  Timeout conn 01:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
  Sunrpc timeout 0:10:00 h323 0:05:00 h225 mgcp from 01:00 0:05:00 mgcp-pat 0:05:00
  Sip timeout 0:30:00 sip_media 0:02:00 prompt Protocol sip-0: 03:00 sip - disconnect 0:02:00
  Timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute
  timeout tcp-proxy-reassembly 0:01:00
  dynamic-access-policy-registration DfltAccessPolicy
  AAA authentication enable LOCAL console
  AAA authentication http LOCAL console
  the ssh LOCAL console AAA authentication
  AAA authentication LOCAL telnet console
  Enable http server
  http 192.168.1.0 255.255.255.0 inside
  http 0.0.0.0 0.0.0.0 inside
  http 0.0.0.0 0.0.0.0 outdoors
  No snmp server location
  No snmp Server contact
  Server enable SNMP traps snmp authentication linkup, linkdown cold start
  Crypto ipsec transform-set esp-3des esp-md5-hmac FirstSet
  life crypto ipsec security association seconds 28800
  Crypto ipsec kilobytes of life - safety 4608000 association
  Crypto-map dynamic dyn1 1jeu transform-set FirstSet
  Crypto-map dynamic dyn1 1jeu reverse-road
  dynamic mymap 1 dyn1 ipsec-isakmp crypto map
  mymap outside crypto map interface
  crypto ca server
  SMTP address [email protected] / * /
  crypto ISAKMP allow outside
  crypto ISAKMP policy 1
  preshared authentication
  3des encryption
  sha hash
  Group 2
  life 43200
  Telnet timeout 5
  SSH 0.0.0.0 0.0.0.0 outdoors
  SSH 0.0.0.0 0.0.0.0 inside
  SSH timeout 5
  Console timeout 0
  dhcpd outside auto_config
  !
  dhcpd address 192.168.1.10 - 192.168.1.132 inside
  dhcpd dns 8.8.8.8 4.4.4.4 interface inside
  dhcpd allow inside
  !
  a basic threat threat detection
  Statistics-list of access threat detection
  no statistical threat detection tcp-interception
  WebVPN
  internal RAVPN group policy
  RAVPN group policy attributes
  Split-tunnel-policy tunnelspecified
  Split-tunnel-network-list value ST1
  the address value testpool pools
  dk Z6zukyDvwVjP7o24 encrypted privilege 15 password username
  sv i1gRUVsEALixX3ei encrypted password username
  tunnel-group testgroup type remote access
  tunnel-group testgroup General attributes
  address testpool pool
  Group Policy - by default-RAVPN
  testgroup group tunnel ipsec-attributes
  pre-shared-key *.
  !
  class-map inspection_default
  match default-inspection-traffic
  !
  !
  type of policy-card inspect dns preset_dns_map
  parameters
  message-length maximum 512
  Policy-map global_policy
  class inspection_default
  inspect the preset_dns_map dns
  inspect the ftp
  inspect h323 h225
  inspect the h323 ras
  inspect the rsh
  inspect the rtsp
  inspect esmtp
  inspect sqlnet
  inspect the skinny
  inspect sunrpc
  inspect xdmcp
  inspect the sip
  inspect the netbios
  inspect the tftp
  !
  global service-policy global_policy
  context of prompt hostname
  Cryptochecksum:48f0863a70b8f382c7b71db0b88620fe
  : end

  ----

  Could you please help me identify where I'm going wrong. Its been a long time I have trying to figure out but nothing seems to work! ;-(

  Help, please!

  Thank you

  ANUP

  (1) pls replace the tunnel ACL ACL standard split as follows:

  no extended ST1 192.168.1.0 ip access list allow 255.255.255.0 192.168.0.0 255.255.255.0

  access-list allowed ST1 192.168.1.0 255.255.255.0

  (2) add icmp inspection:

  Policy-map global_policy

  class inspection_default

  inspect the icmp

  (3) Finally, I add the following so that you can test the ASA inside the interface:

  management-access inside

• Why do I need "Promiscuous" Mode when you use multiple vSwitches and a bridge?

  Hello guys,.

  5.5 ESXi running.

  I created two vSwitches and putting multiple virtual machines in each vSwitch. I have a CentOS VM with two network cards, one in each vSwitch. I configured the CentOS VM to work as a bridge. I could spend between devices on a vSwitch pings, but ping has no devices on a vSwitch devices on the other (through the CentOS acting as a bridge). The ARP requests have been sent across the bridge, but have never had sent answers ARP. I checked around online and someone recommended to enable Promiscuous Mode. I activated the Promiscuous Mode (changing to refuse to accept) on the two vSwitches (which is then applied to the change to all virtual machines). You can read more about that here: VMware KB: how "Promiscuous" mode operates on the virtual level switch and portgroup

  Now all of a sudden, everything works.

  My question is: why?

  I think that I don't want to Promiscuous Mode unless it must be such that it will result in more traffic to each VM it had reached before. I don't really understand why I need to authorize this change, and any help would be nice!

  Without promiscuous mode, vSwitch and port group will only transmit traffic VMs (MAC addresses) that are directly related to the port groups, he will not learn the MAC addresses that, in your case, are the other side of the bridge. The "Promiscuous" mode, all traffic is sent to each virtual machine on the vSwitch and port group and it's virtual machine to decide what to do with the network packets. As you have already mentioned, this isn't a parameter that you want to apply to a large number of virtual machines. For this reason, you can create a second group of ports on the vSwitch with only of CentOS virtual machine and activate the "Promiscuous" mode on only this group port rather than the vSwitch.

  André

• Isolate the vMotion and storage traffic?

  We use ESXi 5.1 using two physical switches for management traffic and two physical switches for VM and storage vMotion traffic. We use a DVSwitch with VLANS separated for VMs (125), storage (126) and vMotion traffic (127). My question is really about the physical switch setting. I have installation of VLANs, 125, 126 and 127 on my main switch with each of them having a layer 3 interface. I think that only the network of the VM (vlan 125) needs a layer 3 interface. In other words, my VLAN storage and vMotion is not routable by removing the 3 layer interface.

  Does this sound correct?

  Another twist, I have a Juniper switch where all layer 3 interfaces are defined. It is connected to 4 switches in the rear of my IBM Bladecenter. Two of these switches are Cisco 1 GB switches that carry all traffic to the management through a vSwitch network. The other two switches are BNT 10 GB switches that carry traffic for Storage vMotion and VMs. Of course, it's a network connection, because it carries several VLANS.

  My only question now is should I eliminate interface layer 3 on my storage network located on one vlan separate

  Well, you need your storage system accessible on these IP addresses by the systems for the management of the other subnets or such? You already have all traffic from subnet inter between iSCSI and other networks? If this isn't the case, then there is no need to have routable iSCSI network.

  For the ESXi hosts themselves there is usually zero reason to have vmkernel iSCSI interfaces be routable since you already do management etc on another routable network (and responses of hosts would be sent there as well except if you define static routes custom).