New answers tagged

1

It depends. You generally have a few modes: SLAAC. Clients pick their own IP, based on a announced subnet, which must be a /64. They get subnet and route from the RA announcements. DHCP6. Clients get only routes through RA. Combination. They may use SLAAC, or DHCP. Either will work, but DHCP may provide additional useful settings. For a client network, I'd ...


1

It depends on what you use to parse it, one can argue that it is completely valid to leave out prefix zeroes, and that is what we do most of the time because there is no definition of how many digits there should be. However if we skip over the part about if this is being invalid and why or not and instead ask "How do I get this in desired format" ...


3

The problem lies in the use of the hardware filter. The documentation states that: The hardware operator returns a data string whose first element is the type of network interface indicated in packet being considered, and whose subsequent elements are client's link-layer address. If there is no packet, or if the RFC2131 hlen field is invalid, then the ...


0

From any traffic-generator create an ethernet IPv4-DHCP message type53 with 04 for Decline and 06 bytes for NAK


2

By definition a renewal renews the existing lease of the same IP address. If you want to force a new IP address from the client side you can change the MAC address of the network adapter. The DHCP server will see it as a new client and allocate a new address. You may want to look at the macchanger package http://manpages.ubuntu.com/manpages/bionic/man1/...


0

I try to disable DHCP filter and after that it's working normally, I don't know but it's work :D


2

Yes, these are independent, and the DHCPv6 server should also respond to v6 requests only. If you use server software that supports both, you may need to explicitly disable responses to v4 requests, and you may run into issues if your DHCP server also updates local DNS (e.g. because an update flushes all records and then only adds records for one address ...


Top 50 recent answers are included