SG300 insert option82 in DHCP relay

Similar Questions

• Firmware 1.4.0.88 for SG300-52 seems to break DHCP relay

  My VLAN to end my switches, so I use a DHCP relay with Option82 to distribute addresses for the subnet of the VIRTUAL LAN. After the transition from 1.3.7.18 to 1.4.0.88, DHCP isn't being delivered on my VLAN. Does anyone else have this problem?

  I'm just creating DHCP relay for the first time with my SG 300-28, 1.4.0.88 firmware and noticed that the DHCPDISCOVER promulgated by the relay had the same source and destination (67) port, while the original DHCPDISCOVER used 67 & 68. In addition the 1.3.7.18 firmware is not exchange these autour:

  Excerpts from Wireshark:

  1.4.088-

  Original DHCPDISCOVER to the customer:

  User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)

  Relayed SG300 DHCPDISCOVER:

  User Datagram Protocol, Src Port: bootps (67), Dst Port: bootps (67)

  This seems a bit suspect to me

  1.3.7.18

  Original DHCPDISCOVER to the customer:

  User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)

  Relayed SG300 DHCPDISCOVER:

  User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)

  I am not sure that this is your problem (it does not solve my problem), but I want to underline the thought

• E4200 - DHCP relay

  I'm looking to get a new wireless router, so I am able to stream HD movies from my server to a media center PC.  I currently have a WRT54G running DD - WRT.  I have a firewall 5GT of Juniper as my gateway interface that manages all DHCP addresses.  I reserved IP addresses for each wireless device in my house and the WRT54G is configured for DHCP relay to these devices.

  Is there a way to activate the E4200 relay my 5GT to host DHCP traffic?  Thank you.

  I would set up the E4200 as simple access point. Then you don't need any DHCP relay because everything is in the same local network, anyway.

• 7048 routing/DHCP relay with 5548

  Hello

  I have a problem with the 5548 do not relay the query DHCP for PXE (SCCM), 5548 is connected to 7048 (trunk). We shop Cisco, this is the first time that I am using DELL. Any help is appreciated.

  --------7048--------
  
  !Current Configuration:!System Description "PowerConnect 7048, 4.2.2.3, VxWorks 6.6"!System Software Version 4.2.2.3!System Operational Mode "Normal"!configuregvrp enablevlan databasevlan 2,10-11,21,50-52,156vlan routing 1 1vlan routing 10 2vlan routing 21 3vlan routing 50 4vlan routing 51 5vlan routing 52 6vlan routing 156 7vlan routing 2 8vlan routing 11 9vlan association subnet 10.112.0.0 255.255.252.0 10vlan association subnet 10.112.4.0 255.255.255.0 11vlan association subnet 10.116.4.0 255.255.252.0 21slot 1/0 5    ! PowerConnect 7048slot 1/1 11   ! SFP+ Cardslot 1/2 9    ! CX4 Cardslot 2/0 6    ! PowerConnect 7048Pslot 2/1 11   ! SFP+ Cardslot 2/2 9    ! CX4 Cardstackmember 1 5    ! PCT7048member 2 6    ! PCT7048Pip routingip route 0.0.0.0 0.0.0.0 192.168.1.58ip route 10.0.0.0 255.0.0.0 192.168.1.58interface vlan 1exitinterface vlan 2ip address 192.168.1.57 255.255.255.252ip local-proxy-arpno ip redirectsexitinterface vlan 10ip address 10.112.0.1 255.255.252.0no ip redirectsexitinterface vlan 11ip address 10.112.4.1 255.255.255.0ip helper-address 10.112.1.50ip local-proxy-arpno ip redirectsexitinterface vlan 21ip address 10.116.4.1 255.255.252.0ip helper-address 10.112.1.50ip helper-address 10.112.1.51exitinterface Te1/1/2description 'F2_NTR_4'gvrp enablespanning-tree portfastswitchport mode trunkdot1x port-control force-authorizedexit
  
  ------5548------
  
  vlan databasevlan 10-11,21exit
  
  gvrp enable
  
  ip dhcp relay enable
  
  stack master unit 1!interface vlan 1 ip address dhcp!interface vlan 10 ip address 10.112.0.4 255.255.252.0 ip dhcp relay enable ip proxy-arp
  
  interface gigabitethernet1/0/18 spanning-tree portfast switchport access vlan 21
  
  ip route 0.0.0.0 0.0.0.0 10.112.0.1
  
  interface tengigabitethernet1/0/1 description F2_NTM gvrp enable spanning-tree portfast auto switchport mode trunkSW version 4.1.0.1 (date  05-Apr-2012 time  15:03:04)
  
  Gigabit Ethernet Ports=============================no shutdownspeed 1000duplex fullnegotiationflow-control onmdix autono back-pressurespanning-treespanning-tree mode RSTP
  
  qos basicqos trust coseee enable
  

  SCCM PXE server is fine, tested on Cisco gear.
  

  It's weird, PXE starts working when I hard code the fiber connecting switches to full-duplex, even if they show the full duplex in automatic. Thanks for your help.

• DHCP Snooping without configured DHCP relay

  Hello

  We use DHCP Snooping with DHCP relay successfully configured... but I was wondering if the DHCP-Snooping function is also working on a (composed by different switches) L2 network where the DHCP server is on the same VLAN as the client?

  I know that server must be in a VLAN dedicated but segmentation VLAN server DHCP - client is scheduled in a second step...

  Thanks for your suggestions!

  Hi Omar,.

  The DHCP server can be on the same VLAN as the customers, no problem with that.

  You must configure the port on the DHCP server as being approved with the following commands:

  conf t

  IP dhcp snooping

  IP dhcp snooping vlan x

  interface fastethernet x / y

  IP dhcp snooping trust

  FastEthernet x / is the port where the DHCP server must be located.

  Cheers:

  István

• RV180 DHCP Relay

  Hello

  Apologies if Im posting in the wrong place, but I am after some help.

  What Im trying to do is:

  Internet connection - router homepage (for normal home internet) - RV180

  RV180:

  2 VLAN (1-10) - which provide IP addresses for my lab at home (DC, server ESXi)

  The other addresses DHCP "Relay" between the House 2 router devices (NAS and a PC box)

  VLan 1 is set to DHCP relay

  VLan 10 is defined on the DHCP server, configured to give IP addresses in the range 192.168.10. *.

  The home router is running OpenWRT if that makes a difference

  Is it possible to get DHCP traffic on the WAN port to VLAN 1?

  Thank you

  DMO

  Hello

  "Is it possible to get DHCP traffic on the WAN port to VLAN 1.

  No - since vlan10 and vlan1 are connected directly - and the RfC TCP/IP does not allow this - the router forwards traffic via the directly connected interface.

• DHCP relay does not not in in-band mode

  Hi Faisal,.

  wireless client does not have dhcp via a CAS server server ip address,.

  Here's the scenario,

  1. inband case network configuration:

  Trust interface (for protected network)	Untrusted interface (network management)
  IP address Subnet mask Default gateway Set the management VLAN ID: Through VLAN ID managed network	IP address Subnet mask Default gateway Set the management VLAN ID: Through VLAN ID protected network

  2. wireless customers in vlan rogue who is 104 and I traced the vlan 104-400 (trust vlan)

  VLAN vlan untrusted trusted

  140                                                        400

  3 run subent

  ip subent                                                                               vlan

  10.161.136.5 / 255.255.248.0 140

  10.161.136.5 is the trusted ip subnet VLANs 400

  4. Enter ARP is not configured

  in switch, reliable and trusted ports are configured as port trunk and permit reliable and trusted VLAN respectively.

  When we move the client VLAN 400 wireless manually obtain ip address but when wireless client is in vlan 140 its not get ip address and in the configuration of the approved switch and ports not reliable are trunk port and using the vlan native is 1

  WLC pass port is port trunk and allowed for all the VLANS

  do I need to configure the ARP entries or what other configurations are required to work CASES like a DHCP relay.

  Thank you

  Laxman,

  Three things:

  -If it's in VGW, approved and non-approved interfaces must have the same IP address

  -Uncheck "the passage through the VLAN ' on both sides

  S ' away from VLAN 1 if possible!

  HTH,

  Faisal

• SRW248G4P - dhcp relay?

  Hello

  Does anyone know if SRW248G4P supports the dhcp relay?

  I don't see any option for this with 1.0.2 firmware version

  Thank you

  Hi Ukexport, as much as I know it doesn't have. In addition, it is only a layer 2 device, several vlan dhcp would be routed by a deflector, not locally by the switch.

  -Tom
  Please mark replied messages useful

• 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

• DHCP relay for users (ASA) SSL VPN

  I have ASA 5520 vpn endpoint. Before asa, there are firewalls which translates the public ip address to the private sector and to pass SSL traffic to ASA. I have configured DHCP relay to get the IP address for the DHCP in Windows Server users:

  dhcprelay Server 10.100.2.101 on the inside

  dhcprelay activate vpn

  dhcprelay setroute vpn

  and it does not work. with the local pool, it works fine. Should I do something else? When I turn on debugging it has not any activity.

  You try to assign the IP address to the SSL vpn client using the DHCP server?

  If so, you don't need these commands contained in your message.

  Basically, you need to set dhcp server in tunnel-group and dhcp-network-scope in group policy.

  Here is an example of Ipsec client. Setup must be the same.

  http://www.Cisco.com/en/us/partner/products/ps6120/products_configuration_example09186a0080a66bc6.shtml

• 6.1.4 NSX upgrade to 6.2.0: DLR fails to upgrade with DHCP relay message

  Hey all, in the middle of an upgrade of non-prod to a greenfield 6.1.4 6.2. Did the Manager NSX, and follow-up of all controllers. Then after the VMware recommended upgrade sequence, I did the GSS. Then began the DLR. When you try to upgrade the DLR, I received an error message

  The "Upgrade Version" operation failed for the entity with the following error message.

  [DHCP] To enable DHCP Relay, DR instance must be created with a single connected LIF.

  

  Also, the router now displays status in the NSX edges pane: "failed to create/update edgeAssist interface for edge edge-3.» 404 not found. »

  

  So I tried erase the configuration of DHCP on the DLR with the button relay remove, no dice. Tried to redeploy, fail with the same message. Tried to force synchronization, changes in status to "impossible to force synchronization. NSX Edge edge-3 is in poor condition. Try the operation again. The DHCP configuration disappears, but the change seems never commit, because when I browse the bracing or routing section and browse to the DHCP relay page, the original configuration is still there. It is a simple DLR with no configured HA. I have attached the newspapers of DLR tech support in case there is any support curious people out there. Note, vCenter 6.0.0 2741530, ESXi 5.5 Patch 5 reissue 2718055.

  He was just going to remove the DLR and re-create it since it's a lab, but if it wasn't a lab I just want to know why it's a failure.

  After reading more carefully, I apparently missed a step in the upgrade (hosts). I suggest that whoever does the upgrade follows the upgrade guide in pubs located here: 6.2 NSX VMware vSphere Documentation Center

  • Manager of NSX upgrade to 6.2
  • Upgrade of the Cluster controller NSX to 6.2, check the status of cluster control
  • Upgrade the cluster hosts for NSX 6.2
  • 6.2 the NSX border upgrade
  • Guest Introspection to NSX 6.2 update
  • Remove the NSX data security and redeploy

  So I tried a lot of things to work myself back from that. I tried to upgrade the hosts but that didn't fly, esx-vxlan has been blocked to version 5.5.0 - 0.0.2691051. To return to a viable State in the end I had to nuke basically the GSS, logical switches, DLR, TZ, manually uninstall the NSX vibs and unsubscribe manager the NSX to vCenter in the cluster take-off of the State of "uninstall." From there, re - install the 5.5.0 - esx-vxlan 0.0.2983935 (6.2) vibs on the cluster worked OK, and I rebuilt the gateway routing and dashboard. So read before making anywhere near prod. : )

• (Strange) problem with X 3000 DHCP relay functionality

  Hello

  I have a home network consisting of a Linux box running dhcpd server, connected to the X 3000 wireless router, connected - in turn - to the Repeater RE1000 and - finally - a DHCP client computer.

  As I run my own DHCP server, I configured X 3000 to be a relay.

  I get a very strange behavior. Specifically, the DHCP client present a package DISCOVER, which happens on the server (via the relay or router), the server responds with a package OFFER for the relay, but then - bizarelly! -the relay or router sends the OFFER NO response to the client, but the server!

  Needless to say, in this case the client does not register with the network.

  I captured packets with wireshark running on the server, and you can find them here:

  http://DL.dropbox.com/u/13536552/Linksys-problem/captured-packets.txt

  Can someone shed some light on this?

  P.S. No Linksys has professional technical support online?

  I highly recommend to connect servers only ethernet cable. A wireless link is still an unreliable link and should not be used for essential services like dhcp servers.

  Some routers have issues with broadcast traffic after the first group key renewal. That could well be the X 3000 shows the same problem. The only thing you could do is to then call Linksys technical support...

• Help with DHCP relay

  I inherited a network with a dhcp/DC with two network cards, 1 for the data network and the other for the vlan voice.

  I know this is an unsupported configuration, and I want to get rid of the adapter for the vlan voice. I have to make sure that dhcp is working on the vlan voice.

  Network is made up of a stack of PowerConnect 70xx switces.

  My question is what must be configured on the stack. There are so many options... IP helper, relay DHCP, ect...

  If the switch is in mode Layer 2, then use l2relay DHCP commands. If it is in Layer 3 mode, then you use the controls to support IP. If in layer 3 mode make sure VLANS routing is turned on.

  Console #config

  Console (config) #ip Routing

  Console (config) #interface vlan 2

  Console (config-if-vlan2) #routing

  Console (config-if-vlan2) #exit

  Console (config) #interface vlan 3

  Console (config-if-vlan3) #routing

  Console (config-if-vlan3) #exit

  Console (config) #interface vlan 4

  Console (config-if-vlan4) #routing

  Console (config-if-vlan4) #end

  Hope this helps,

  Thank you.

• L3 - SG300 - 28 p and DHCP

  Hi all

  I'm having a bit of difficulty up a SG300 - 28 p to L3 and DHCP. I will attach a basic network diagram and a very short list of my needs.

  I'm building a temporary network for a company event 1 day that I can't make it work in our office "Lab".

  L3 - SG300 - 28 p connects to our provider using a connection of the SFP.

  I have to be able to address IP DHCP 300 + using the SG300 - 28 p

  My problem is that I can ping my 2 machines test (manually configured IP) about 172.16.0.3 and 172.16.0.4, but cannot ping after the (internet) referral. Also DHCP distributes no intellectual property for the range 172.16.0.10 - 172.16.1.200

  VLAN 1 is set to 10.2.2.20 access port (to the provider through a connection on port 28 FPS)

  VLAN 100 is 172.16.0.2 access port (ports 1-26)

  I have the WLC and WAP tri...

  Is the set of even possible? I know that the EQ network is a bit budget for users, but for a one day business event I just do not have a budget for the purchase of switches better.

  Please excuse the gross chart.

  Thank you in advance.

  -RJ

  Thanks for the reply.

  With the information that you have provided, it seems the only part missing is the way return the unit for service providers. Unfortunately there is no way around that, and no, you will not be able to put anything between the two, because the device doing the NATting is unity of suppliers.

  I think that what is happening is that traffic is actually the side provider, but there is no way to do so as soon as the provider is not a route for the subnet in 172.16.x.x.

  Out of curiosity, why do you use a VLAN for the devices connected to the SG300? Could you use the 10 subnet Ip addresses? If you do this, you will not need to have a route back from the supplier, as all devices will be on the same subnet.

• SG300-10 - Configuration of DHCP MAC based reservations

  Hi all!

  I have the SG300-10 for my home network, and I have the installer except static bookings via DHCP

  exactly how you re ones?  I have several things set up for the port-forwarding, which requires static IP addresses.  I've already configured with points of departure to leave me the room for bookings of several that I need pools, but I don't want to make a mistake and suddenly something upward.

  Here is my config, what commands can I use to add those?  I want several in the VLAN from 10 to 200.  1 for each of my wireless devices where I know the Mac and also for my vlan 200 for my devices wired.

  v1.3.5.58 / R750_NIK_1_35_647_358
  CLI v1.0
  set system mode router
  file SSD indicator encrypted
  @
  ssd-control-start
  ssd config
  ssd file passphrase control unrestricted
  no ssd file integrity control
  ssd-control-end 
  !
  no cdp run
  spanning-tree mode mst
  vlan database
  default-vlan vlan 99
  exit
  vlan database
  vlan 1,10,200
  exit
  voice vlan oui-table add 0001e3 Siemens_AG_phone________
  voice vlan oui-table add 00036b Cisco_phone_____________
  voice vlan oui-table add 00096e Avaya___________________
  voice vlan oui-table add 000fe2 H3C_Aolynk______________
  voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
  voice vlan oui-table add 00d01e Pingtel_phone___________
  voice vlan oui-table add 00e075 Polycom/Veritel_phone___
  voice vlan oui-table add 00e0bb 3Com_phone______________
  no lldp run
  ip dhcp server
  ip dhcp pool network User_200
  address low 10.5.10.10 high 10.5.10.220 255.255.255.0
  default-router 10.5.10.1
  dns-server 68.105.28.12 68.105.29.12 68.105.28.11
  exit
  ip dhcp pool network Wireless_10
  address low 10.5.11.10 high 10.5.11.15 255.255.255.0
  default-router 10.5.11.1
  dns-server 8.8.8.8 8.8.4.4
  exit
  no bonjour enable
  bonjour interface range vlan 1
  ip access-list extended U_Wireless_10
  permit ip 10.5.10.0 0.0.0.255 10.5.10.1 0.0.0.255
  permit ip 10.5.10.0 0.0.0.255 10.5.5.2 0.0.0.0
  deny ip 10.5.10.0 0.0.0.255 10.0.0.0 0.255.255.255
  deny ip 10.5.10.0 0.0.0.255 172.16.0.0 0.15.255.255
  deny ip 10.5.10.0 0.0.0.255 192.168.0.0 0.0.255.255
  permit ip any any
  exit
  hostname WesleyNetS1
  management access-list Management
  permit
  exit
  

  Here's the Info for verification:

  [quote]

  Show worm

  SW version 1.3.5.58 (date October 10, 2013 time 17:15:41)

  Start the 1.3.5.06 version (dated 21 July 2013 times 15:12:10)

  HW version V02

  dir

  Directory of flash:

  Size data Flash size of the name changed file Permission

  ------------------- ---------- ---------- --------- -----------------------

  backup-config rw 131040 13162 November 25, 2013 21:55:24

  backuplo rw 327600 26 10 October 2013 17:16:01

  dhcpdb.sys r-65520-10-Oct-2013 17:18:12

  dhcpsn.prv - 65520 - 2 may 2013 14:55:10

  directry.prv - 65520 - 2 may 2013 14:55:10

  image-1 rw 6976867 6976867 November 25, 2013 21:15:32

  image-2 rw 6976867 6976867 November 25, 2013 21:26:41

  mirror-config 131040 4351 22 - Sep - 2013 rw 06:52:13

  startup-config rw 262080 15333 25 November 2013 22:42:55

  syslog1.sys r-65520-12-Nov-2011 23:34:37

  syslog2.sys r-65520-12-Nov-2011 23:34:37

  Total Flash size: 16252928 bytes

  Free flash size: 1119834 bytes

  [/ quote]

  Hi Wesley, I think for the static host, you must configure all of the options. option respectively 3 and 6 option for the default router and dns.

  -Tom
  Please mark replied messages useful