Re: [Dnsmasq-discuss] No DHCPOffer back but DHCPDiscover is being received by UML machine

2020-04-23 Thread Josh H
hink this is a kernel bug. > > Josh, does this work with an older kernel or with a real network device, > rather than the UML virtual device? It would be good to work out where > the regression happened. > > > Simon. > > On 16/04/2020 15:40, Josh H wrote: > > > > First

Re: [Dnsmasq-discuss] No DHCPOffer back but DHCPDiscover is being received by UML machine

2020-04-16 Thread Josh H
mand would I need to run for this? And what service is best to upload the strace result, pastebin? Thanks, Josh On Thu, 16 Apr 2020 at 12:49, Simon Kelley wrote: > > > On 15/04/2020 19:27, Josh H wrote: > > > It's difficult for me to share the config outright as I'm using a

Re: [Dnsmasq-discuss] No DHCPOffer back but DHCPDiscover is being received by UML machine

2020-04-15 Thread Josh H
help? It's a very unique setup so I appreciate it's probably not the easiest thing to try and debug. On Wed, 15 Apr 2020 at 19:17, Geert Stappers wrote: > On Wed, Apr 15, 2020 at 06:03:13PM +0100, Josh H wrote: > > On Wed, 15 Apr 2020 at 16:56, wrote: > > > > > > w

Re: [Dnsmasq-discuss] No DHCPOffer back but DHCPDiscover is being received by machine

2020-04-15 Thread Josh H
tup. Apologies for the half-message previously. On Wed, 15 Apr 2020 at 16:56, wrote: > On 4/15/20 7:18 AM, Josh H wrote: > > > > Working on ISC but not dnsmasq reinforces my diagnosis: dhcpd > bypasses > > iptables for such packets, dnsmasq doesn't. > > &

Re: [Dnsmasq-discuss] No DHCPOffer back but DHCPDiscover is being received by machine

2020-04-15 Thread Josh H
> > what about nftables if you are using a recent version of linux? many seem > to be > moving to nftables from iptables... > https://linuxhandbook.com/iptables-vs-nftables/ Running the command "nft On Wed, 15 Apr 2020 at 16:56, wrote: > On 4/15/20 7:18 AM, Josh H wro

Re: [Dnsmasq-discuss] No DHCPOffer back but DHCPDiscover is being received by machine

2020-04-15 Thread Josh H
ther the kernel update or a newer version of dnsmasq has broken something along the way. Thanks, Josh P.s never used a mailing list before so apologies for the wrong formatting! On Tue, 14 Apr 2020 at 20:19, Geert Stappers wrote: > On Tue, Apr 14, 2020 at 06:51:25PM +0100, Jo

Re: [Dnsmasq-discuss] No DHCPOffer back but DHCPDiscover is being received by machine

2020-04-15 Thread Josh H
n 14/04/2020 18:51, Josh H wrote: > > Hi there, > > > > I'm receiving no DHCPOffer back from my DHCPDiscover. However, I can > > tcpdump the machine running dnsmasq and it is receiving the DHCPOffer > > packets. > > > > Here's my very very simple dnsmasq

Re: [Dnsmasq-discuss] No DHCPOffer back but DHCPDiscover is being received by machine

2020-04-14 Thread Josh H
> Tell more about the set up in use. I'm running a very odd environment in that I'm using 2 usermodelinux virtual machines connected via a virtual hub. I've got such a simple setup because originally I had a much larger configuration and wanted to test it wasn't something messed up in routing

[Dnsmasq-discuss] No DHCPOffer back but DHCPDiscover is being received by machine

2020-04-14 Thread Josh H
Hi there, I'm receiving no DHCPOffer back from my DHCPDiscover. However, I can tcpdump the machine running dnsmasq and it is receiving the DHCPOffer packets. Here's my very very simple dnsmasq.conf # To disable dnsmasq's DNS server functionality. port=0 # To enable dnsmasq's DHCP server