Re: [Dnsmasq-discuss] DHCPv6 - Relay-reply dhcpv6.option.type 79 Client Link-Layer Address with zero length

2023-02-13 Thread Harald Jensas
On 2/12/23 20:23, Simon Kelley wrote: On 12/02/2023 16:19, Harald Jensas wrote: On 2/11/23 23:39, Simon Kelley wrote: Is dnsmasq acting as the relay or as the DHCP server in that pcap? Simon. dnsmasq is acting as the DHCP server in the attached pcap. I'm confused. The code in dnsmasq

Re: [Dnsmasq-discuss] DHCPv6 - Relay-reply dhcpv6.option.type 79 Client Link-Layer Address with zero length

2023-02-12 Thread Harald Jensas
On 2/11/23 23:39, Simon Kelley wrote: Is dnsmasq acting as the relay or as the DHCP server in that pcap? Simon. dnsmasq is acting as the DHCP server in the attached pcap. -- Harald On 10/02/2023 17:01, Harald Jensas wrote: Hi, The router is dropping relay replies from dnsmasq because

[Dnsmasq-discuss] DHCPv6 - Relay-reply dhcpv6.option.type 79 Client Link-Layer Address with zero length

2023-02-10 Thread Harald Jensas
Hi, The router is dropping relay replies from dnsmasq because it sees the Option 79 with lenght of 0 as invalie, i.e less that minimum length. I have attached a pcap file showing that the reply from dnsmasq does include Option 79 with len == 0. RFC6939 - 6. DHCPv6 Server Behavior """

Re: [Dnsmasq-discuss] [PATCH] DHCPv6 - network booting 'address in use'

2021-09-17 Thread Harald Jensas
On 9/16/21 21:32, Petr Menšík wrote: Hi! There is also bug on Red Hat bugzilla [1] for this issue, which contains a bit more comments about it. I would make short summary here. The problem is client on the same machine with the same DUID and mac address requests IPv6. Before it processes

Re: [Dnsmasq-discuss] DHCPv6 - network booting 'address in use'

2021-09-16 Thread Harald Jensas
On 9/15/21 21:22, Geert Stappers via Dnsmasq-discuss wrote: On Wed, Sep 15, 2021 at 08:23:47AM +0200, Harald Jensas wrote: On 9/14/21 21:12, Geert Stappers via Dnsmasq-discuss wrote: On Tue, Sep 14, 2021 at 04:58:10PM +0200, Harald Jensas wrote: Hi, We are seeing an issue whit network

Re: [Dnsmasq-discuss] DHCPv6 - network booting 'address in use'

2021-09-15 Thread Harald Jensas
On 9/14/21 21:12, Geert Stappers via Dnsmasq-discuss wrote: On Tue, Sep 14, 2021 at 04:58:10PM +0200, Harald Jensas wrote: Hi, We are seeing an issue whit network booting over DHCPv6 is failing. The UEFI firmware is starting two DHCPv6 transactions, with separate IAID's. Initially one

[Dnsmasq-discuss] DHCPv6 - network booting 'address in use'

2021-09-14 Thread Harald Jensas
Hi, We are seeing an issue whit network booting over DHCPv6 is failing. The UEFI firmware is starting two DHCPv6 transactions, with separate IAID's. Initially one transactions succeeds, while the other transaction fails because the same address (fd42::200) is advertised. On error, the client

Re: [Dnsmasq-discuss] [PATCH] Regression in 2.81 related to support for multiple IPv6 addresses

2020-05-01 Thread Harald Jensas
On Fri, 1 May 2020, 16:28 Petr Menšík, wrote: > Hi Harald and Geert, > > I looked at it and it is quite confusing what it does. Not quite simple > to understand. I think it is not uncommon for dnsmasq code, but this > brings more knobs to make it more complicated. > > I tried to rewrite it

[Dnsmasq-discuss] [PATCH] DHCPv6 - Multiple reservations for single host

2019-12-23 Thread Harald Jensas
Hi, The patch below is a slight alteration to a possible solution discussed in http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2017q1/011289.html. My approach here does not require making dhcp-host conditional on a tag. However, making dhcp-host conditional on a tag would be a nice