About sheepuking wu

sheepuking wu · 08-04-2017

Hi, According to description of RFC2131, if host is in INIT-REBOOT status, it will send DHCP Request to ask DHCP Server if it can reuse previous IP. After sending DHCP Request, the host is in "REBOOTING" status. If the host receives DHCPACK that des...

sheepuking wu · 10-28-2011

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' b...

sheepuking wu · 09-12-2011

Hello,Recently I study RFC 1042 and I have one question about this document.I find that RFC 1042 has some points as follow:1. It described the packet format that encapsulates IP datagram and ARP into L2 frame.2. It described tha maxium/minum packet s...

sheepuking wu · 08-26-2011

Hello,Recently I have studied IEEE 802.2 standard, and I have some problems as follow:1.IEEE 802.2 standard has desceribes that DSAP address can be "FF" or "00" .If address is "FF", this is broadcast DSAP address; if address is "00", this is null DSA...

sheepuking wu · 08-09-2017

Hi Cluett, The reason that packet capture only shows traffic going in one direction is my operation of procedure. My procedure is as follow: Step 1, make my host connect with DHCP Server, and get dynamic IP successfully. Step 2, make my host discon...

sheepuking wu · 08-08-2017

Hi Cluett, The attachment is my pcap file. Actually I am confused with the behavior that Windows 7 or 10 uses previous IP before DHCP Server agrees to allocate. For example, assume the previous IP is 192.168.208.204, if my host disconnects from ori...

sheepuking wu · 08-07-2017

Hi Cluett, Thanks for your reply. The following two figures is my captured DHCP Request Packet. When host sends this DHCP Request , it is in INIT-REBOOT status. I have questions about these two figures are as follow: 1. About the first figure, my h...

sheepuking wu · 08-05-2017

Hi Cluett, I can capture the DHCP packets by Wireshark and capture the result of "ipconfig/all", but my operation system is Chinese Windows 7, so the result of "ipconfig/all" can include Chinese words. And I can't make operation system become English...

sheepuking wu · 08-04-2017

Hi 2rcluett, Thanks for your reply. The operation system of my host is Windows 7, when the host is sending DHCP Request in INIT-REBOOT, the source IP of DHCP packet is indeed 0.0.0.0 , but I type DOS command "ipconfig/all" , I found the IP of the hos...

Member Since	‎08-26-2011 08:58 AM
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What is the IP of host when it is in DHCP INIT-REBOOT and REBOOTING status ?

Why DHCP option has "magic cookie" ?

One question about RFC 1042

DSAP and SSAP in LLC (link logic control)

Hi Cluett,

Hi Cluett,

Hi Cluett,

Hi Cluett,

Hi 2rcluett,