dhcp


Querying a DHCP server in C#

≡放荡痞女 提交于 2020-02-10 10:56:51
问题 I need to get the mapping of MAC to IP stored on DHCP server, either through a program running on the server itself or preferably through a program running on one of the DHCP clients. I understand netsh utility can be used to get the dump however i have not had much success with that. Any working examples or hint on that? I have admin rights on DHCP server Edit I dont want to use arp cache as that would require me to either broadcast ping (which is not allowed on windows) or ping the all

Querying a DHCP server in C#

点点圈 提交于 2020-02-10 10:56:09
问题 I need to get the mapping of MAC to IP stored on DHCP server, either through a program running on the server itself or preferably through a program running on one of the DHCP clients. I understand netsh utility can be used to get the dump however i have not had much success with that. Any working examples or hint on that? I have admin rights on DHCP server Edit I dont want to use arp cache as that would require me to either broadcast ping (which is not allowed on windows) or ping the all

Querying a DHCP server in C#

荒凉一梦 提交于 2020-02-10 10:56:06
问题 I need to get the mapping of MAC to IP stored on DHCP server, either through a program running on the server itself or preferably through a program running on one of the DHCP clients. I understand netsh utility can be used to get the dump however i have not had much success with that. Any working examples or hint on that? I have admin rights on DHCP server Edit I dont want to use arp cache as that would require me to either broadcast ping (which is not allowed on windows) or ping the all

Human readable DhcpInfo.ipAddress?

荒凉一梦 提交于 2020-01-12 07:37:06
问题 I am wondering how to get a human readable IP Adress from DhcpInfo.ipAddress? The tricky thing about it is, that it is an integer and obviously you can't store an IP address in an integer. So, how is the IP address encoded, that it can be stored in an int? The documentation doesn't give any help to this problem: http://developer.android.com/reference/android/net/DhcpInfo.html#ipAddress Thanks :-) 回答1: You can actually. IP address as int is: AABBCCDD and in human-readable form it is AA.BB.CC

Set from static IP to DHCP on Windows 8 using command line

两盒软妹~` 提交于 2020-01-07 08:57:34
问题 My computer is Windows 8. I used command line to set static IP address by netsh interface ipv4 set address name="Wired Ethernet Connection" source=static address=1.1.1.1 mask=1.1.1.1 gateway=1.1.1.1 And static DNS by netsh interface ipv4 add dnsserver name="Wired Ethernet Connection" address=1.1.1.1 index=1 Where 1.1.1.1 in both cases is just for demonstration and was replaced by my real IP. Edit: As of 2018, 1.1.1.1 is used as a DNS server now. I want to change from static IP to DHCP now. I

Access IIS on Windows server 2012 through wireless directly without router

微笑、不失礼 提交于 2020-01-06 04:31:18
问题 Just bought a new server and installed windows server 2012 on it. The server has a wireless device. I am planning to deploy a web application in that server and wanting all user to connect to this server through wireless directly to that server(not using any router/switches). So basically, the windows server 2012 have DHCP installed to assign IP address to any user that connect to that server wirelessly; and user able to navigate to the website deployed in the IIS. How do I configure the

ARP Communication

半腔热情 提交于 2020-01-05 04:33:05
问题 Does DHCP use ARP only as communication protocol to assign an IP Address? 回答1: No. Read this page, and if you'll have further questions, ask. 回答2: No ARP at all. 1.Client ff:ff:ff:ff:ff:ff 0.0.0.0 255.255.255.255 DHCP Discover 2.DHCPsrvr ff:ff:ff:ff:ff:ff 192.168.1.1 255.255.255.255 DHCP Offer 3.Client ff:ff:ff:ff:ff:ff 0.0.0.0 255.255.255.255 DHCP Request 4.DHCPsrvr mac address of client 192.168.1.1 192.168.1.102 DHCP ACK Client send ethernet frame saying "where is the DhCP server?" so, he

What is a Dynamic Host Configuration Protocol (DHCP) server?

回眸只為那壹抹淺笑 提交于 2020-01-03 06:41:26
问题 What is a Dynamic Host Configuration Protocol(DHCP) server? and What is the difference between DHCP server and a Domain Name Server(DNS) server? 回答1: DHCP (Dynamic Host Configuration Protocol) is for assigning IP addresses (or other network parameters) to devices so they can communicate with each other. If you for example want to establish a wireless connection, then you need amongst other things request a DHCP server that assigns your device an IP address so you can communicate with other

Sending DHCP Discover using python scapy

≡放荡痞女 提交于 2019-12-31 15:50:49
问题 I am new to python and learning some network programming, I wish to send an DHCP Packet through my tap interface to my DHCP server and expecting some response from it. I tried with several packet building techniques such a structs and ctypes and ended up with using scapy. Here I am able to send DHCP Packet but unable to get any response from the DHCP server(Analyzed using wireshark and tcpdump)..My packet looked like same as original DHCP packet but failed to get response. Here is my code

FreeBSD: network interface address: dhcp or static

徘徊边缘 提交于 2019-12-30 10:34:33
问题 How can I programmingly (C) know if given interface has static address or one provided by dhcp ? I can look at /var/db/dhclient.leases.<interface_name> . Any better/cleaner way? any ioctl I can use? 回答1: Read /etc/rc.conf . Look for lines starting with ifconfig and see which of those contain the text DHCP . This will not catch interfaces that were re-configured by running dhclient manually. Parsing the leases file would work better in that respect, assuming its permessions allow your program

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