Questions tagged [dhcp]
For questions about DHCP in in relation to network devices. For instance, you are setting up DHCP on a layer 3 switch.
16 questions with no upvoted or accepted answers
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Communication between subnets on Sonicwall firewall
I have a Sonicwall TZ-350. X0 is the default LAN with IP 192.168.10.1, and X1 is the WAN. I've set up a second local subnet on X2 with IP 192.168.20.1 for a single NAS device (no switch; the device is ...
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Juniper and EdgeCore dhcpv6-relay remote-id (option 37)
I have the following problem. I have minimal configuration of dhcpv6-relay agent on QFX5100. Before the QFX, there is an Edgecore switch on which DHCPv6 snooping is enabled. The problem occurs as soon ...
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Configue IOS DHCP server to respond to Option 60 class
I have a number of small networks each with about half-a-dozen mostly-fixed hosts. The routers on each network provide DHCP service for the occasional visiting engineer's laptop. I am adding IP ...
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Cisco ASA L2TP remote-access VPN with addresses assigned by DHCP
I have an ASA with a working Cisco VPN Client configuration set up. I am trying to phase out the Cisco VPN Client, initially in favour of L2TP.
The Cisco Client policy has end-users fetch their ...
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DHCP Relay on Cisco ASA over site-to-site VPN
How do I get the DHCP relay function of a Cisco ASA working over a site-to-site VPN?
The ops center is behind a 5510 ASA with a 3560 core switch. The DHCP server is at IP 10.0.10.153.
The remote ...
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Cisco 1841/WAP4410N Wireless Access Issue
In our environment, we have a Cisco 1841 which, among other things, performs DHCP services for a small manufacturing facility. We have 100 available DHCP addresses in the pool. That device connects to ...
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What is the safest method to decrease DHCP lease time while not risking clients receiving already-used IP addresses?
Our wireless in our NYC office has a guest SSID that has no auth. Understandably, we get a LOT of users on this network. Lately, our IP space has been filling very fast at events and I'd like to ...
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CBS350-24XS problem with ip obtain by DHCP pool for IP phones
I have problems with obtaining IP address by DHCP server which configured on CBS350-24XS switch.Problem happens only with IP phones : Cisco SPA504G,Fanvil X3S.
Firmware version is latest : 3.3.0.16
I ...
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How to configure DHCP on CISCO IOS XE with options (60) conditions?
Cisco IOS XE Fuji 16.9:
How can I make the client receive the "bootfile" option, depending on what is specified in "option 60"?
This is necessary in order to transfer the necessary ...
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Dhp L2TP reservation on cisco 1921
I use a Cisco 1921 as L2TP server.
(I don't want to use RADIUS authentication.)
Please is someone can tell me how is it possible to do IP reservation, using client identification?
I have tried dhcp ...
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Question about subinterface DHCP relay CISCO
I want to make 4 PC got DHCP IP address
No problem with left side, but right side 2 PC can't get IP automaitic. I think the problem is DHCP Relay.
How can I use ip helper-address for subinterface of ...
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Cisco DHCP using dynamic updates
I would like to use a configuration on a Cisco router that allows for clients to resolve the names of other clients without the use of mDNS. I have following configuration:
roTST01#show running-config ...
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Best practice / advice for cisco 3560 behind Virtualised OPNsense
Currently I run the below scheme. The problem is that when ESXi is down it takes down all the network with it, so I have to boot up another router to log in to it.
WAN > OPNsense (in ESXi)> ...
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Why DHCP client doesn't issue a DHCPREQUEST as it has received a DHCPOFFER?
In GNS3 (and using Cisco routers), I've created four subnetworks like the following:
The goal is to set up a DHCP server on router R1 and a DHCP relay agent on router R2 in order to make it available ...
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There have DHCP relay for different vlans issue in my MX-480 router
I have the network topology:
in this topology, in my router, I set the DHCP relay:
admin@MX-RE0# show forwarding-options dhcp-relay
server-group {
smart_group {
103.57.xxx.19;
}
}
...
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Apply Interface Default Gateway to Entire Device
I feel there may be a very simple term for what I trying to do, but I'm not sure what it is, and it is difficult to search for it in concise words.
The shortest description I can come up with: "I ...
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