Cisco Routers :: Configure DHCP Option 150 On RV220?

May 3, 2012

Is it possible to configure DHCP option 150 on the RV220?  I have a Cisco 7940 IP phone that is trying to connect back to my office. The VPN is up and I can ping the relevant server but I can't see any way to configure the DHCP option.

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Cisco Routers :: RV042 / How To Configure Some DHCP Option

Jun 19, 2012

I have a RV042 VPN Router with the latest firmware v4.2.1.02.This Router is connected to the main site by a VPN Tunnel.
 
Now, I like to configure some DHCP Option so I can put a IP Phone behind the RV042. The IP Phone should receive a IP by DHCP from the RV042 and of course, the IP of the Call Manager with the Option 150.
 
I can configure DHCP and it works fine but I can't find where I have or can configure Option 150.

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Cisco Routers :: RV042 - How To Setup DHCP Option 66

Oct 13, 2012

I need DHCP Option 66 to be enabled my small business RV042 router, so the IP phones could know where is the TFTP server.

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Cisco Routers :: RV220 - Reboots Often

Apr 2, 2013

Router reboot often. I have rebooted the device to factory default almost twice without success .

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Cisco Switching/Routing :: 3550 / 2950 DHCP Relay Option To Router Handing Out DHCP

Apr 3, 2012

Have a client wanting to hand out public ip addresses to all clients from a PFSense Firewall terminating the internet connection.
 
How do I allow the Cisco Switches currently in place, configured with private ip addresses in the 10.10.x.x ranges and Vlans, where the main 3550 layer 3 has defined dhcp scopes for each vlan, to relay dhcp requests from all vlans to the PFSense firewall?
 
I assume I would take off the currently defined dhcp scopes for the vlans and configure each vlan/switch with the ip helper address and specify the PFSense firewall and that Nat would have to be disabled onthe firewall?

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Cisco Routers :: Get The OpenDNS Servers On The WAN Side Of The RV220?

Aug 23, 2012

Recently I have switched from DSL to Comcast Cable.  In the PPoE settings you can disable DNS from ISP. However, now since I have to use DHCP I cannot disable the DNS from ISP.If I change the DNS on the LAN or change the DNS in my adapter properties (in local machine) this makes my Brother printer loose connectivity.How can I get the openDNS servers on the WAN side of the RV220?I do not have a static ip address from Comcast either....

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Cisco Routers :: RV220 Host Name Resolution LAN / WLAN Stops Working?

Sep 11, 2011

I'm running a Windows Server 2008 R2 connected via cable to my RV220. The server is hosting several websites running in separate virtual machines. These websites are accessible through a reverse proxy set up on the 2008 R2. In addition the 2008 R2 provides access to storage over Windows file sharing (client backup, file sharing ...). Most of the clients are connected via wireless.My problem is that after some time (~24h) I lose the connection to the services provided by the 2008 R2 server as a result of (host) name resolution has stopped working. This only happens for wireless clients. Wired clients are not affected.To give more details: Network clients connected via wireless can't see clients connected via Ethernet and the network shares are not accessible anymore (even by putting in manually "\hostnameshare", but "\[IP address]share" still works). Being connected via Ethernet the communication between client and server works flawlessly - the server appears immediately on the network device list. The other way around is also not possible: the server can’t see clients connected via wireless. The reverse proxy is still accessible through wireless connection by putting in the IP address, e.g. "http://192.168.1.123/homepage" but "http://hostname/homepage" won't work.A restart of the router will fix things but only for the next couple of hours.

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Cisco Routers :: SRP 527W - How To Configure DHCP Relay

Sep 12, 2012

I know how to disable the DHCP on the SRP527W but i was wondering how do i configure DHCP relay to point to a network DHCP server.

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Cisco Switching/Routing :: Configure Two 3845 Routers To Act As DHCP Server / Relay?

Feb 14, 2012

I am trying to configure two 3845 routers to act as dhcp server and dhcp relay. Clients are connected to the router that relays all dhcp requests to the vrf instance which is used to connect it to the router wich is running dhcp server.
 
Router1 
ip vrf dhcp_dns
rd 8:1
 int gi0/0
ip vrf forwarding dhcp_dns
ip address 192.168.200.5 255.255.255.248

[code]...

So far I can see dhcp requests coming from the R1 and dhcp server on R2 replies with the dhcp offer but PC is not getting any ip.

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Cisco WAN :: 2811 Router - DHCP Option 60 / 43 On IOS To Aruba AP

Oct 3, 2011

I'm trying to configure my Cisco Router 2811 which is also acting as the DHCP server for my branch office for DHCP option 60 and 43 so Aruba AP's at my branch can discover it's master Controller? What is the command I need to enter in the Cisco router?

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Cisco Switches :: DHCP Option 82 On SG-300-10 Port Switch

May 5, 2013

I have sample lab    dhcp-client  ------- (vlan62) sg-300 switch  (vlan62) ------ dhcp server
 
When I set on switch :
 
dhcp relay  : enable
option 82 : enable
dhcp server address: ip of dhcp
 
When debug packets from client to server, there is no 82 option in dhcp discover packets. I mirror all traffic to mirror port with wireshark. I can see dhcp packets but without option 82.
 
Firmware version: 1.0.0.27

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Cisco Switching/Routing :: Adding Dhcp Option 82 On C2960S

Dec 12, 2012

I have a very simple setup containing 3 C2960S switches:switch 1:  central switch, acting as router between VLAN 1 en VLAN 2switch 2+3: edge switches, connected via 1 link to central switch, both on VLAN 2,Clients connect to switch 2 and 3 using dhcp, switch 1 uses dhcp relay to forward requests from VLAN 2 to the dhcp server on VLAN 1.  So far so good.Now I want switch 1 to add option  82 to the dhcp requests so the dhcp server can see whether the request came through switch 2 or switch 3. I tried turning on dhcp option 82 support on switch 1 by doing.

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Cisco Switching/Routing :: RFC 951 Why DHCP Option Has Magic Cookie

Oct 27, 2011

In RFC 951, the format of BOOTP packet was legislated, but the vendor information was not legislated in this document,  so the authors of this document had described that :"If the 'vend' field is used, it is recommended that a 4 byte 'magic number' be the first item within 'vend'.  This lets a server determine what kind of information it is seeing in this field. "
 
I think it meant that the format of vendor information wasn't fixed in RFC 951, and any vendor can legislate a new format of vendor information by itself. And the value in "magic cookie" can be set by any vendor.But in RFC 2131, the format of DHCP packet was legislated, and the "magic cooke" was fixed to values 99, 130, 83 and 99, I think it meant that the format of option information in DHCP packet was fixed absolutely and any vendor can't legislate a new format by itself.
 
Since the format of option information in DHCP packet was fixed absolutely, why the network device needs "magic cookie" to  identify the mode in which the succeeding data is to be interpreted ?  I think the magic cookie is not useful in DHCP packet because the format of option information is fixed. In other words, there is only one format of option information forever.

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Cisco Wireless :: 5500 / Dhcp Proxy Option In Controller?

Jul 2, 2012

While configuring a 5500 wireless controller, i came across this option of DHCP proxy under Advanced tab of Controller Option.It asks for the dhcp option 82 remote id format & the dhcp timeout.
 
1. What is the significance of this & when do we use it?

2. Also, under each wlan ssid that we create, there is an option of dhcp address required under the advanced tab. Do we need to use this option, if we are defining a normal dhcp pool in our controller for that ssid.

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Cisco Wireless :: WLC 5508 - Separate DHCP Server Required To Get Option 43 Setup Properly?

May 7, 2012

I am using a WLC 5508 and its internal DHCP server. I cant find anywhere I can setup option 43. However, the access points are connected in just fine. Do I need to worry about setting up a seperate DHCP server to get option 43 setup properly?

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Cisco Wireless :: 5508 - DHCP Option 43 For 1130 And 1300 Lightweight Access Points?

Mar 14, 2013

I have Cisco 1131 & 1300 Light Weight Acces Points and I have 5508 WLAN controller.  If i enable the wlan controller internal DHCP Server can this access points will work with this internal DHCP server or do i need to configure DHCP option 43 for these access points?  Can these access points works with LWAPP or do i need to configure CAPWAP?

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Protocols / Routing :: Can't Find DHCP Lease Option In Nano-station Settings

Jan 25, 2013

I own a Nanostation5 Loco, and I have a router behind it.I would like to add a DHCP Lease to that router and do a port forward to the router.I can not find the DHCP Lease option in Nanostation settings, but if I choose to see DHCP Leases in "Extra info" on main page I can see some MAC and IP addresses there.When it comes to port forwarding, I fill the form slots with info, and when I press OK to save it a pop-up comes saying "Please fill out this field", a field for another forward rule.

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Cisco Firewall :: How To Configure ASA 8.2(4) Not To Drop Packets With IP Option 7 (record Route)

Oct 21, 2012

How to configure ASA not to drop packets with ip option 7 (record route)?  According to the docs, ip inspect ip option will drop all ip option packets except 0,1,and 20 (EOOL, NOP, or RTRALT):
 
"If an IP header contains additional options other than EOOL, NOP, or RTRALT, regardless of whether the ASA is configured to allow these options, the ASA will drop the packet. "
 
Also, policy-map type inspect ip-options treats only these 3.

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Cisco Wireless :: AP 1130 - Possible To Active Option DHCP Server In Ap 1130 Dispositive

May 12, 2012

I convert IOS Cisco AP 1130 LAP to 1130 Autonomous mode. Well, the periphericals - clients connect to SSID AP no recieved I.P Adress, I think that is not possible active option DHCP server in AP 1130 dispositive. In mode I.P static clients the connection is established successfully.

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Cisco WAN :: POE Option On 880 Series Routers?

Jul 4, 2012

Does the two listed POE switch ports on the 880 series routers are active out of the box (default) or is configuration or extra parts required as internet pictures appear to show what looks like a power connector new to the POE ports?

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Cisco VPN :: Rv220 VPN Info Not Showing

May 31, 2012

I have successfully set up a pptp vpn from my new rv220w.  I have also successfully logged in using 2 seperate laptops and also my iPhone.  They all work great.   There is one issue.  When connected and I log into the router it does not show these laptops or iPhone as being connected to the vpn.  There is two spots that its supposed to show the page refreshes and shows nothing connected.  Is there a setting I am missing?

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Cisco Routers :: SRP527W TCP Dump Option

Apr 17, 2013

I upgraded the firmware to latest and apparently i've lost couple of options inlcuding TCP Dump in diagnostic as well as I cannot find how to disable/enable an ethernet port.

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Cisco Routers :: Configuring RVS4000 VPN Option?

Dec 29, 2011

I just purchase the Cisco Router RVS4000 vpn and I am having problem configuring the VPN option.  I just try all way I could imaging, but somehow something are missing and I don't know what it is.  Here are a image of my current configuration.

No matter the change on my configuration, the status always in down.

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Cisco LAN :: RV220 / Redesigning A Small Network?

Nov 25, 2011

I've been tasked with redesigning a small network (15-20) including wireless.  Cisco recommends the RV220 as the entry point Firewall/Router/Wireless and researching there are apparently some good and bad sides of having everything all in one unit depending on who you ask.  The other option would be to get a dedicated Firewall/Router and then run the wireless on a seperate device(vlan). I'm fine with either solution but my main concern is performance on the physical connections as well as reliability with the wireless having good range and not dropping or having to reboot the router continuously.  Behind the router/firewall I will purchase one of the Cisco 24-port gig switches for physical connections through the office. How to get for the router/firewall/wireless setup? Budget is not a problem although I don't want to pay for something that is overkill for 10-15 wired workstations and 5-10 wireless including a guest wireless.

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Cisco Routers :: RV220W Missing PPPoE Service Name Option

Jan 13, 2013

Recently I bought RV220W router and found out that PPPoE connection option or profile do no have service name field at all. Unfortunately, my ISP requires this to be able to connect. I had done some research before buying this router by going through online device manager demos on cisco website. RV220's interface is not available, but RV215 is and I checked out some of the common features between both routers. Surprisingly RV215's PPPoE connection settings has service name option.
 
I suppose, unless there is new firmware update (my current router is already running the latest available firmware), this option cannot be added in the interface. What I want to know is, is there any way to configure the router to use the service name in PPPoE option or in PPPoE profiles? I don't think RV220W can be accessed via terminal/SSH or maybe even terminal.

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Routers / Switches :: Huawei Echolife 520b Router Wifi Lan Option Is Missing?

Jan 26, 2011

I Echolife 520b, can not enable wireless network in the menu Basic Wireless LAN option is missing

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Cisco WAN :: WS-C6513-E - How To Configure DHCP

Feb 13, 2013

we have 4 department Finance, Marketing, HR, contracts. All are in different subnet. We need to install a single DHCP server to provide IP for all subnets.

We have one Layer 3 switch Cisco WS-C6513-E; Windows server 2003 DHCP server.

How to design the network ?

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Cisco WAN :: Can Configure DHCP Server In 3750

Dec 13, 2010

Can we Configure DHCP server in 3750 ?  we have configure DHCP server  in 1841 router but some reason we want remove router .

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Configure DHCP To Use Two Different Range Of IP Addresses?

Sep 5, 2011

How can i configure DHCP to use two different range of IP addresses. One range will be for example 192.168.0.* and the other range will be 192.168.1.* When the first range of ip is full the DHCP automatically assign IP addresses from the second range.

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Cisco :: Configure A Dhcp Service On A Router For Some Vlans?

Apr 20, 2012

I'm trying to configure a dhcp service on a router for some vlans.I would like to give the range 172.16.0.0 - 172.16.10.255 to vlan 10, 172.16.20.0 - 172.16.20.255 to vlan 20.for some reason it doesn't work?here's the config.

ip dhcp excluded-address 172.16.0.1
ip dhcp excluded-address 172.16.20.1
ip dhcp excluded-address 172.16.30.1
ip dhcp pool vlan10
network 172.16.0.0 255.255.0.0

[code]...

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Cisco Firewall :: Can Configure ASA5510 As DHCP Server For LAN

Oct 13, 2011

I am using a fiber optic connection. I want to connect it directly to ASA5510. A WLC2504 will be connected to ASA and one Aironet AP will be deployed at first. (At this moment I am not using any Windows server but in near future I will need to deploy Windows Server 2003 in my corporate network) My questions are:
 
Can I configure ASA as DHCP server for my LAN?

Can I configure WLC as DHCP server for my LAN?

If we can configure both then what is the best practice from above two options? (I am new to Cisco stuff and first time user)

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Cisco Firewall :: Configure Multiple Dhcp On ASA 5505?

Dec 23, 2011

I want to configure multiple DHCP pool on ASA. that I create like
 
int e0/2
no shut
 
interface Ethernet0/2.10vlan 10nameif inside10security-level 100ip address 192.168.10.1 255.255.255.0
interface Ethernet0/2.20vlan 20       nameif inside20 security-level 100ip address 192.168.20.1 255.255.255.0
dhcpd address 192.168.10.10-192.168.10.254 inside10dhcpd dns x.x.x.x  y.y.y.y interface inside10dhcpd enable inside10
dhcpd address 192.168.20.10-192.168.20.254 inside20dhcpd dns h.h.h.h  z.z.z.z interface inside20dhcpd enable inside20
 
I have following query...
 
1. int e0/2 work as trunk port, is it?  any special confiduration require other than dot1Q?
 
2. How can I configure inside interface?  is it like,

    access-group inside_access_in_1 in interface inside10
    access-group inside_access_in_1 in interface inside10
 
3. How can I configure static NAT ?
 
4. How can i configured inside route?
 
5. How can I configured default NATing?
 
6. On which interface I access ASA? currently using inside interface.

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Cisco Switches :: Configure DHCP Server Options For SMB 300?

Nov 28, 2011

I am looking for a how to configure a DHCP server for a Cisco SMB 300 series switch to obtain an automatic configuration. Currently i am using a Cisco 1800 router as my DHCP server and the DHCP pool serving the 300 series switch is configured as follows.
 
ip dhcp pool Cisco_SMB_300
network 192.168.0.0 255.255.255.0
default-router 192.168.0.1

[Code]......
 
Looking at pcaps, I don't even see a tftp request going the server after the switch obtains an IP via DHCP. The config file format is exactly as obtained from the download backup section (pretty sure its not the issue since i don't see a download attempt). Also, the SMB switch is running the latest firmware image (1.1.1.8)
 
Looking though the admin guide i did not see specifics on how the DHCP server was to be configure for the auto configuration feature to work.

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