DHCP on cisco sg300-28mp

This series dg300-28mp supports dhcp server and can play this role?

Yes, up to 8 DHCP pools.

-Tom
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Tags: Cisco Support

Similar Questions

  • Cannot connect the switch Cisco Cisco SG300 - 28 p spend and traffic through VLANS

    Try to connect the Cisco SG300 - 28 p switch to another switch and proceed 2 VLANS between them.  Not doing any circuit.  If I connect a computer to the port on the SG300 - 28 p I can access the VLAN 2 and take a DHCP address. However, when I connect to another switch on the port and connect it to a port on another switch secondary I am unable to access VLAN 2 and pull an IP address.  I checked that the works of secondary switch (WS-C3560G-48PS-S) connected to the other 3500 s, but not this latest SG300 - 28 p.  Here's the configuration for both, I'm leaving areas that shouldn't matter and add if necessary.  Try to connect the SG300 - 28 p Port 26-WS-C3560 Port 1 port.  Once again, if I connect a computer to port 26 on the SG300 - 28 p I access the VLAN 2 as expected, but not when I connect to channel 2 on the secondary switch.

    Cisco SG300 - 28 p

    !
    interface vlan 1
    Internet name
    !
    interface vlan 2
    LAN name
    IP 172.20.5.11 255.255.0.0
    no ip address dhcp (this is the VLAN I'm moving)
    !
    interface vlan 3
    private name
    !
    interface vlan 4
    name of Nortel
    !
    interface vlan 101
    name Video_Project
    !
    interface gigabitethernet26
    Description VLAN2-ACCESS-CISCO3500
    switchport mode access
    switchport access vlan 2 (this goes to port 1 on the other Cisco 3500 switch to provide access 2 VLAN)

    Cisco 3500

    !
    interface Vlan1
    NATCO Internet description
    no ip address
    no ip route cache
    no ip mroute-cache
    !
    interface Vlan2
    NATCO LAN description
    IP 172.20.5.13 255.255.0.0
    no ip route cache
    no ip mroute-cache (this is the VLAN I'm moving)

    !
    interface Vlan3
    Description LHPrivate
    no ip address
    no ip route cache
    no ip mroute-cache
    !
    interface GigabitEthernet0/1
    switchport access vlan 2 (this is the port that I connect to the SG300 - 28 p)

    !
    interface GigabitEthernet0/2
    switchport access vlan 2 (this is the port I hang my computer to and trying to access VLAN 2 other switch)

    Hello

    Yes, STP is the problem here. As you can see on your release of the Cisco 3500 switch, port Gi0/1 is BKN (The FEW is a shortened form of "Broken").

    This is caused by an incompatibility of versions PLEASE used between the two switches. Small businesses (including series SG300) switches are use legacy STP or Rapid STP (your case), but uses templates to business (such as catalyst 3500) PVST + (each VLAN spanning tree version of STP).

    Two versions between group of switches are compatible only under certain conditions. Important condition is that the two switchports needs to use a VLAN 1, vlan access/native and not any other number VLAN.

    It is to make your communication work, you must:

    • disable the STP at least 3500 Cisco switch:

      • on overall global (Switch (config) # no vlan spanning tree 2)
      • or by the base interface (switch(config-if) # no vlan spanning tree 2)
    • change the configuration of your connection between two switches by following the path:
      • change the switchport trunk (trunk switchport mode) mode
      • do 1 VLAN as native vlan (vlan switchport trunk native 1)
      • Towing VLAN 2 as vlan tagged on that Stump (switchport trunk allow vlan add 2)
  • Connection Cisco SG300-10-Core Cisco 6513 for ShoreTel phones

    I have a new ShoreTel phone system will soon.  Configure a dhcp, including option 156 scope which is required for ShoreTel to obtain the configuration on ShoreTel phones and in order to get on the vlan correct voice on the phone.  I also created a new vlan 112 for the vlan voice.  When I plug directly into the Cisco 6513 Core switch, the phone starts fine, it gets its configuration and on the VLAN correct 112.

    We have a training room in which there will be a lot of users.  I ordered 6 Cisco small business 10port SG-300 POE switches for this training room.  I plugged the switch in a cable coming off the 6513 which is just an access port and in the vlan voice I created for phones shoretel VOIP:

    interface FastEthernet10/11
    switchport
    switchport mode access
    switchport voice vlan 112
    priority queue queue-limit 20
    WRR-queue random - detect min-threshold 1 30 40 50 60 70 80 90 100
    WRR-queue random - detect min-threshold 2 30 40 50 60 70 80 90 100
    WRR-queue random detection threshold min 3 30 40 50 60 70 80 90 100
    WRR-queue random detection max-threshold 1 70 80 90 100 100 100 100 100
    WRR-queue random detection max-threshold 2 70 80 90 100 100 100 100 100
    WRR-queue random detection threshold 3 70 80 90 100 100 100 100 100 max
    WRR-queue cos-map 1-3-1
    WRR-queue cos-1 6 4 map
    WRR-queue cos-map 2 6 0
    WRR-queue cos-map 2 8 2
    WRR-queue cos-map 3 1 7
    WRR-queue cos-map 3 8 3 6
    MLS qos trust dscp
    Storm-control broadcasts 20 h 00
    spanning tree portfast

    When I plug a phone directly into this cable the phone works very well.  When I plug a cheap cisco POE switch in I can get 3 phones works very well, but due to the amount of energy needed for this cheap a cisco switch it will give only 3 phones power.

    The real problem here is plug into small business cisco SG300-10port POE managed switch.  I thought I could just connect the switch to the port configured above right out of the box and plug in phones without a problem.  When I plug the switch and start plugging in ShoreTel phones, they do not start coming in and upward and actually had a few phones upward but then finally there is no tone and also later, they appear on the screen as a service not available.

    I have to configure a trunk port on a port on the SG300 and the Cisco 6513 for this to work?  Also I will need to VLAN configuration manually on the SG300.  Looks like that when I just plugged it in to the above configured the port on the SG300 it automatically create the vlan 112.

    Any help would be appreciated

    Thank you

    Dave

    Deleted

  • Cisco SG300-10 Cisco 6513 and Shoretel phones

    I have a new ShoreTel phone system will soon.  Configure a dhcp, including option 156 scope which is required for ShoreTel to obtain the configuration on ShoreTel phones and in order to get on the vlan correct voice on the phone.  I also created a new vlan 112 for the vlan voice.  When I plug directly into the Cisco 6513 Core switch, the phone starts fine, it gets its configuration and on the VLAN correct 112.

    We have a training room in which there will be a lot of users.  I ordered 6 Cisco small business 10port SG-300 POE switches for this training room.  I plugged the switch in a cable coming off the 6513 which is just an access port and in the vlan voice I created for phones shoretel VOIP:

    interface FastEthernet10/11
    switchport
    switchport mode access
    switchport voice vlan 112
    priority queue queue-limit 20
    WRR-queue random - detect min-threshold 1 30 40 50 60 70 80 90 100
    WRR-queue random - detect min-threshold 2 30 40 50 60 70 80 90 100
    WRR-queue random detection threshold min 3 30 40 50 60 70 80 90 100
    WRR-queue random detection max-threshold 1 70 80 90 100 100 100 100 100
    WRR-queue random detection max-threshold 2 70 80 90 100 100 100 100 100
    WRR-queue random detection threshold 3 70 80 90 100 100 100 100 100 max
    WRR-queue cos-map 1-3-1
    WRR-queue cos-1 6 4 map
    WRR-queue cos-map 2 6 0
    WRR-queue cos-map 2 8 2
    WRR-queue cos-map 3 1 7
    WRR-queue cos-map 3 8 3 6
    MLS qos trust dscp
    Storm-control broadcasts 20 h 00
    spanning tree portfast

    When I plug a phone directly into this cable the phone works very well.  When I plug a cheap cisco POE switch in I can get 3 phones works very well, but due to the amount of energy needed for this cheap a cisco switch it will give only 3 phones power.

    The real problem here is plug into small business cisco SG300-10port POE managed switch.  I thought I could just connect the switch to the port configured above right out of the box and plug in phones without a problem.  When I plug the switch and start plugging in ShoreTel phones, they do not start coming in and upward and actually had a few phones upward but then finally there is no tone and also later, they appear on the screen as a service not available.

    I have to configure a trunk port on a port on the SG300 and the Cisco 6513 for this to work?  Also I will need to VLAN configuration manually on the SG300.  Looks like that when I just plugged it in to the above configured the port on the SG300 it automatically create the vlan 112.

    Any help would be appreciated

    Thank you

    Dave

    Double post.

    Go HERE.

  • LACP hash between N3048 and CISCO SG300/SG200 + question Twinax attach direct cable

    Hello

    In my network I have deployed two new N3048 with 2 transceivers SPF + and SPF module back + as core switches are connected to other 3 switches from edge of N2048 using optical fiber and I reused my previous CISCO SG300 and SG200 goes to serve the other two boxes of my campus via the spine in copper.

    I have 4 copper cable which starts from the hub of the SG300 network and 2 the SG200 brass. I set up to have a redundant connection using 2 + 2 with SG300 and 1 + 1 with SG200 RSTP.

    So for the SG300 I re LAG + LACP to have two channels of the N3048s port, but now that a single cable is connected because I don't know what kind of LACP hash mode should I put on N3048 to have a compatible hash between Dell and Cisco switches.

    My N3048 have mode 7 (Advanced hash) as default but I guess that cisco models do not understand... so, what mode is the best for LACP work perfectly with small business cisco switches?

    I also received my twinax cables to connect my two N3048 via SPF + back modules... conhot can I plug the cables into the slots SPF + (already mounted) without turning off my basic switches?

    Thank you!

    See you soon

    Cables can be connected/disconnected, but I don't know if the real module SFP + for the rear of the N3000 is hot plug.

  • Cisco SG300 SNMP with cacti

    I installed Cacti on ubuntu 14.04 and I'm trying to add a Cisco sg300.

    If the switch is configured like this:
    Server SNMP My Office location
    SNMP Server contact [email protected] / * /
    SNMP community - server MyC0mmun1ty ro 192.168.10.25 view by default

    I then in the settings of the device

    SwitchName Description
    The switch ip host name

    Cisco to host model router
    number of threads 1
    disable the unchecked host

    shot detection snmp device operating time
    ping timeout 400
    try again to pin 1

    SNMP version 2
    Community SNMP MyC0mmun1ty
    SNMP port 161
    SNMP timeout 500
    OIDs maximum 10

    from the cactus Server (192.168.10.25) if I have
    Nmap - sU Pei 161 switch ip of see:
    161/udp snmp open

    also on the sg300 I had to enable snmp in the security settings where ssh/telnet etc. is and have saved the config.

    But watch the cactus
    SNMP information
    SNMP error

    OK, I suggest you enable the SNMP agent on unrestricted IP switch, IE replace command:

     snmp-server community MyC0mmun1ty ro 192.168.10.25 view Default

    with the command:

     snmp-server community MyC0mmun1ty ro view Default

    and again snmpwalk. If it will work now, your SNMP to Cacti server applications are sourcing from another IP than 192.168.10.25 (your Cacti server configured several IP?).

  • Creation of trunk of Cisco 6513 to Cisco SG300 - 10 p for Shoretel phones

    I plugged a new Cisco SG300 - 10 p in an access on our Cisco 6513 port, which is in vtp mode.  I think I will need to create a trunk port of the Cisco SG300 - 10 p 6513, to carry out my office data vlan 1 and my new vlan 112 shoretel VOIP.  I believe that some how all ports are in mode trunk on the default sg300.  I have attached a picture of what it looks like on the management area of vlan sg300.  For some reason any I can plug 3 phones in the sg300 currently just plugged in the 6513 access port and one of the 3 phones come with the vlan voip good 112 and goes into the service very good.  The other 2 phones come but show no service, until I closed the port on sg300 for these other 2 phones and then put the ports back up, then the phones go up.  All of this without going through the port on the Cisco 6513 as a trunk port, it is only now as an access port vlan 1 data and vlan 112 voip vlan.

    My question is, should I put the cisco 6513 in trunk mode and the sg300 will attempt to become the server in vtp and ruin my entire network.  This is what scares me, because I've heard the horror stories of what happens.  My other question is if I have to put the port in trunk mode on him going the sg300 6513, it causes all future phones at the same time without problems?  What would be the cause of 1 of the 3 phones to come as they do and 2 others to come after stop int and put it up?

    Thanks Dave

    Double post.

    Go HERE.

  • Problem with switch Cisco SG300

    Hi guys,.

    I have a problem with switch Cisco SG300-20. After the failure of the switch boots in a kind of mode. It requires

    MAC address and serial number to be entered manually for the device. I tried to find information on this mode, but without success.

    My question is: what is this mode and how to make the start switch in this mode?

    How can I turn on the switch in this mode on purpose if it happens again and I enter the wrong information by accident.

    Thank you

    Hi Aegx, this is a rare case where the switch basically forget his identity. Although the switch is recoverable, it is recommended the switch RMA.

    If you are certain that you have neither taken under warranty, all the information that is asked is on the bottom of the switch sticker. If the thumbnail is is not present you wouldn't able to do this is correct.

    In addition, if you make a typographical error, the switch will have undesirable failures that are permanent, such as the inability to update software.

  • SG300-28MP power inline or stop?

    I have a client with a SG300 28MP and they want to be able to stop or turn on wi - fi when ever.  Since I'm AMX touch mounted panels in various places, I want to give them the opportunity, via touch screens to enable or disable, or even to choose power switch time by activating/deactivating the POE on network wi - fi (direct connection to the APs only) ports.

    Issues related to the:

    I should just use ' shutdown/no shutdown' or 'inline power inline never/power auto' orders?  What is the difference that this application is concerned?

    When I use the command "power inline [auto |]» never]' I get the following switch:

    SG300-28MP(config)#int range gi22-24

    SG300-28MP(config-if-range)#power inline auto

    SG300-28MP(config-if-range)#09-Nov-2013 00:34:12 %LINK-I-Up:  gi22
    09-Nov-2013 00:34:13 %LINK-I-Up:  gi23
    09-Nov-2013 00:34:14 %LINK-I-Up:  gi24
    09-Nov-2013 00:34:17 %STP-W-PORTSTATUS: gi22: STP status Forwarding
    09-Nov-2013 00:34:18 %STP-W-PORTSTATUS: gi23: STP status Forwarding
    09-Nov-2013 00:34:19 %STP-W-PORTSTATUS: gi24: STP status Forwarding
    09-Nov-2013 00:34:29 %LINK-W-Down:  gi22
    09-Nov-2013 00:34:30 %LINK-W-Down:  gi23
    09-Nov-2013 00:34:31 %LINK-W-Down:  gi24
    09-Nov-2013 00:34:32 %LINK-I-Up:  gi22, aggregated (1)
    09-Nov-2013 00:34:33 %LINK-I-Up:  gi23, aggregated (1)
    09-Nov-2013 00:34:34 %LINK-I-Up:  gi24, aggregated (1)
    09-Nov-2013 00:34:36 %STP-W-PORTSTATUS: gi22: STP status Forwarding, aggregated (1)
    09-Nov-2013 00:34:37 %STP-W-PORTSTATUS: gi23: STP status Forwarding, aggregated (1)
    09-Nov-2013 00:34:39 %STP-W-PORTSTATUS: gi24: STP status Forwarding, aggregated (1)

    Just out of curiosity I and W represents in the returned status of LINK and STP?

    Hello Vini, if you stop the port, it won't allocate power on pairs.

    -Tom
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  • Cisco SG300-52MP connectivity problem

    Hello

    I have Cisco SG300-52MP pass. Recently, unit has rebooted itself send message to remote logs server after startup.

    10 Nov 09:12:51 % F-INVALID-PARAM-BOX switch: function BOXG_poe_i2c_read_mem_byte: param invalid recv_byte_PTR value = 0 * FATAL ERROR * task Reporting: HCPT.  Software version: 1.2.9.44 (date time 30-Sep-2012 01:33:07) 0x16a7a4 0x1671e4 0x6596d0 0x433c04 0x4390d0 0x4392b0 0x8f8c84 0 x 907320 0x8e92cc 0x8e96e4 0x8e98b4 0x8ec8b8 0x8ed9c4 0x8e2cb8 0x8f0990 0x8c9d64 0x8ca8c4 0x8b6674 0x8b71e8 0x121d9c

    I decided to update firmware as possible preventative action to prevent this problem from occurring in the future. I did it and now the switch runs with 1.3.0.62 firmware version.

    Now, I got a different kind of problem with this switch (just after the upgrade). Periodically, the switch management interface becomes meaningless. I have ping test and here is the output of the test when the problem occurs:

    64 bytes of switch (192.168.1.1): icmp_seq = 3567 ttl = 63 times = 1.09 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3568 ttl = 63 times = 1.12 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3569 ttl = 63 times = 1.06 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3570 ttl = 63 times = 1,11 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3571 ttl = 63 time = 29538 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3572 ttl = 63 time = 28539 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3573 ttl = 63 times = 27539 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3574 ttl = 63 = ms 26540 times

    64 bytes of switch (192.168.1.1): icmp_seq = 3575 ttl = 63 times = 25540 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3576 ttl = 63 times = 24541 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3577 ttl = 63 times = 23542 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3578 ttl = 63 times = 22542 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3579 ttl = 63 times = 21542 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3580 ttl = 63 time = 20543 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3581 ttl = 63 times = 19543 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3582 ttl = 63 times = 18544 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3583 ttl = 63 times = 17545 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3584 ttl = 63 times = 16545 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3585 ttl = 63 times = 15545 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3586 ttl = 63 times = 14546 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3587 ttl = 63 = ms 13547 times

    64 bytes of switch (192.168.1.1): icmp_seq = 3588 ttl = 63 = ms 12547 times

    64 bytes of switch (192.168.1.1): icmp_seq = 3589 ttl = 63 times = 11548 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3590 ttl = 63 = ms 10548 times

    64 bytes of switch (192.168.1.1): icmp_seq = 3591 ttl = 63 = ms 9549 times

    64 bytes of switch (192.168.1.1): icmp_seq = 3592 ttl = 63 = ms 8549 times

    64 bytes of switch (192.168.1.1): icmp_seq = 3593 ttl = 63 time = 7550 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3594 ttl = 63 times = 6550 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3595 ttl = 63 = ms 5551 times

    64 bytes of switch (192.168.1.1): icmp_seq = 3596 ttl = 63 = ms 4551 times

    64 bytes of switch (192.168.1.1): icmp_seq = 3597 ttl = 63 times = 3552 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3598 ttl = 63 times = 2552 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3601 ttl = 63 times = 35.4 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3602 ttl = 63 times = 1,11 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3603 ttl = 63 times = 1.04 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3604 ttl = 63 times = 1,11 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3605 ttl = 63 times = 1.07 ms

    64 bytes of switch (192.168.1.1): icmp_seq = 3606 ttl = 63 times = 1,10 ms

    During this time all the facilities connected (30 active ports) works well without network delays, so the problem is only shown for the management interface.

    Someone could advice me why this is happening and what can I do to solve it?

    Fascinating, this means that it is perhaps related-

    https://supportforums.Cisco.com/thread/2221597

    Edit-

    It is a known for IPV6 bug where the switch management is hampering in an IPV6 environment. So I suspect your problems develops more than IPV6.

    CSCuh50141

    -Tom
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  • Cisco SG300 - 28 p - Port security issue.

    Hi, I would like to activate the port security on a Cisco SG300 PoE 28 p Switch. I would like to know how this can be done in cases where port is more connected to desktop switches 8 ports and in cases where computers are connected directly to the switch.

    Thanking you in advance,

    Parth.

    This is described in detail in the section 'Configuration of Port Security' on page 326 to 329 of the document Cisco Small Business 300 Series Managed Switch Administration Guide.

    The difference between a port serving a desktop switch and the other directly serving endpoint is just the number of MAC addresses that you want to leave.

    You have any specific questions?

  • Cisco SG300 / ASA 5505 intervlan routing problem

    Dear all

    I have a problem with the configuration correctly sg300 layer 3 behind the ASA 5505 switch (incl. license more security)

    The configuration is the following:

    CISCO SG300 is configured as a layer 3 switch

    VLAN native 1: 192.168.1.254, default route ip address (inside interface ASA 192.168.1.1)

    VLAN defined additional switch

    VLAN 100 with 192.168.100.0/24, default gateway 192.168.100.254

    VLAN 110 with 192.168.110.0/24, default gateway 192.168.110.254

    VLAN 120 with 172.16.0.0/16, default gateway 172.16.10.254

    Of the VLANS (100,110,120) different, I am able to connect to all devices on the other VIRTUAL local networks (with the exception of Native VLAN 1; is not the ping requests)

    From the switch cli I can ping my firewall (192.168.1.1) and all the other gateways of VLANs and vlan (VLAN1, 100, 110, 120) devices

    Asa cli I can only ping my switch (192.168.1.254) port, but no other devices in other VLAN

    My question is this. What should I change or installation in the switch configuration or asa so that other VLANs to access the Internet through the ASA. I will not use the ASA as intervlan routing device, because the switch does this for me

    I tried to change the asa int e0/1 in trunkport (uplink port switch also), to enable all the VLANS, but as soon as I do that, I can not ping 192.168.1.254 ASA cli more.

    Any help is greatly appreciated

    Concerning

    Edwin

    Hi Edwin, because the switch is layer 3, the only necessary behavior is to ensure that default gateways to the computer are set on the SVI interface connection to the switch to make sure that the switch is transfer traffic wished to the ASA.

    The configuration between the ASA and the switch must stay true by dot1q, such as the vlan all other, unidentified native VLAN tagged.

    Also, if I'm not wrong, on the SAA you must set the security level of the port to 100.

    -Tom
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  • Cisco SG300 Switch - 28 p

    We have four switches Cisco SG300 - 28 p and a Linksys SRW2024 switch in a closet. I've been here for awhile and I'm finally getting the time to straighten out the mess of wires in this cabinet. I know that you have to connect the switches and at that time, they use one to 28 ports. Can I use the gigabit ports instead? Thanks for any help.

    No worries, glad it helped... Yes, the numbering of the latest ports bit is a bit strange

  • VLAN: ESXi <>- Cisco SG300

    Hey everybody,

    I always try to get the hang of networking with ESXi/vSphere...and I was little confused as I had a configuration problem.

    I have an Intel NUC5i5MYHE with 5.5 ESXi. As he has that one NETWORK card I am configuring a trunk so I can separate groups of ports within the host with the VLAN.

    Cisco SG300 has several VLANs (including: HAND = 10, LAB1 = 20, LAB2 = 30). * 1 is still active but VLAN native = 999 *.

    MAIN are all fair access Ports on VLAN10 (10UP).

    GE22 is a trunk with VLAN 10, 20 and 30 with label (10T, 20T, 30t, 999UP).

    A few groups of host ports ESXi has currently (simply called the VLAN I want installation and set on the VLANs)

    Also, I created the extra VMkernel port with VLAN10 just for wasting his time with (I can't access to this IP address, but after looking at VMK0, I think that I need to add static routes to the bridge?)

    V0 & VMkernel 0 = VLAN 0 (none)

    V10 & VMkernel 1 = VLAN 10

    V20 = VLAN 20

    So, with this configuration, I am unable to access the host via vSphere Client. However, if I put GE22 on SG300 to 10UP (10UP, 20T, 30t) I AM able to access... but is not what I want, right?

    To my knowledge... 0 (none) passes a VLAN while 4095 (all) does not take into account any VLAN tags completely, sending the frame as-is to the customers. (While I would let VMK0 0 (zero) as the correlates directly to my unique NIC physical, right?)

    So... my computer that connects with the vSphere Client Gets VLAN10 penetration tag (access). Switch then forwards Egress GE22 through the trunk to the ESXi host with a labeled VLAN10 framework.

    The framework should be accepted at the VMK0 whatever the tag VLAN and connect or if the frame belonged to another customer sent on the vSwitch... unless I'm confused here somewhere.

    Can someone enlighten me please?

    Thank you

    Basically, you have two options. If native/default of the physical switch port VLAN is set on the Management VLAN, then do not set a VLAN ID on the management VMkernel port group, otherwise the value the VLAN ID on the virtual side. Ultimately that a single point (the physical switch port, or the virtual port group) is responsible for the labelling/close the network frames.

    André

  • DHCP Option 82 SG300, decipher the bytes circuitid

    Hey guys,.

    I can't know the meaning of the bytes in Option82 that send SG300 of Cisco switches. The switch is in mode of l3, and I relay dhcp installation and works very well.

    By looking at the packet capture, the switch always send this is the MAC address as optional 82 remote-id:

    Suboption option 82: (2) Agent remote ID

    Length: 8

    Remote agent ID: 000634bdc8xxxxxx

    34:BD:C8 is a YES registered to Cisco Systems.

    I can't decipher the circuitid. The last bytes of couple have something to do with the port:

    Port 1:

    0131 0004007d

    Port 2:

    0004007d 0132

    Port 3

    0004007d 0133

    Port 4

    0004007d 0134

    Port 49:

    0004007d 0161

    Port 50:

    0162 0004007d

    But what makes me scratch my head is really byte would be ' after the 0004007, call it the mystery figure. This system of byte to have a meaning related to the type of device connected immediately. When I connected to a computer, there's a ' he. When I connect an aastra phone, I get a '8'. When I connect a Ubiquiti networks AP, I got a '7'.

    I can't understand the numbering for the ports scheme or the meaning of the mystery figure. Any help is appreciated!

    Hi Jonathan sub option 2, your example D is the identifier of the node.

    Seeing the variable by type of connection, I give it a safe assumption that it is wordy padding type void 1.

    The detailed format for package cushion should contain

    Sub option

    length

    node identifier

    port type

    Number of the interface

    ID of the VLAN

    For the format of normal buffer it should contain

    Sub option

    length

    circuit

    length

    ID of the VLAN

    Number of the interface

    -Tom
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