RV180 DHCP Relay

Similar Questions

• RV180 dhcp via IPSEC Tunnel

  Hello

  I have set up an ipsec tunnel between rv180 (site A) and asa5520 (site B) successful. The dhcp server to clients is on the B site. The dhcp clients request going through the tunnel, they leave the rv180 on the wan interface and arrive at site B with the wan-ipaddress from site A. The configured dhcp-relay on the website match the remote network (site B), configured in the on site A ipsec tunnel. Is there anyway that all traffic pass through the ipsec tunnel? We want it for security reasons.

  Any help is greatly appreciated.

  Ralf

  Dear Ralf,

  Thank you to reach small business support community.

  Unfortunately the relay DHCP Relay not of DHCP request to the IPSec VPN tunnel.  I hope that this answer to your question and do not hesitate to contact me if there is any additional help with what I can help you.

  Kind regards

  Jeffrey Rodriguez S... : | :. : | :.
  Support Engineer Cisco client

  * Please rate the Post so other will know when an answer has been found.

• 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

• 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

• SG300 insert option82 in DHCP relay

  Hey guys, anyone having trouble getting a SG300 series pass to insert information from option82? I have Working DHCP relay between two VLANs successfully, however, I want to identify where the client is connected in order to define their preferences for optimal routing.

  switch-20-0#show ip dhcp relay
  DHCP relay is Enabled
  Option 82 is Enabled
  Maximum number of supported VLANs without IP Address is 256
  Number of DHCP Relays enabled on VLANs without IP Address is 1
  DHCP relay is not configured on any port.
  DHCP relay is enabled on Vlans: 20
  Active: 20
  Inactive:
  Servers: 192.168.0.2
  

  I have to you missing something simple. Any help, or even "Hey have you tried' type answers very much appreciated!

  Hi Jonathan,.

  To my knowledge, you have everything configured properly. I would try to set up packet capture on the switch to the position to interface to the DHCP server to see if the information is included in the DHCP Discover message.

  -Good Trent

  * Please note the useful messages! **

• 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.

• RV180 DHCP IPv4 client to work on the WAN interface?

  Hello

  Is it the customer Cisco RV180 router/firewall support DHCP on WAN interface? What is specifically mentioned on the DHCPv6 client, however, it is not mentioned for the client to IPv4. I want to set up with my cable modem in Bridge mode accessing the WAN on the RV180 interface? So I would get the IP address of my ISP.

  Thank you

  Niels

  Sent by Cisco Support technique iPad App

  Hello Niels,

  The RV180W can certainly pick up a DHCP address from your ISP to the WAN interface, via a bridged modem. In fact, it is the default configuration. Of course, you can also change your type of connection to a static IP or PPPoE (DSL) connection profile.

  All our small business routers are certainly capable of this confiugartion. Personally, I currently use a RV180W with a cable connection. Public IP from my ISP very well address the picked up RV180W.

  All the best,

  -David Aguilar

  Cisco Small Business Support Center

  1-866-606-1866