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 list ruleset" gives me no output, so I assume no rules have been setup. Apologies for the half-

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 wrote: > > > > Working on

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

2020-04-15 Thread wkitty42
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. I have no rules on either of the machines with iptables: what about nftables if you are using a recent version of linux? many seem to be

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

2020-04-15 Thread Josh H
> > > Tell more about the set up in use. > My hope is that it provides some clue why `tcpdump` can see DHCP network > traffic that `dnsmasq` should seen also. 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

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

2020-04-15 Thread Josh H
> Working on ISC but not dnsmasq reinforces my diagnosis: dhcpd bypasses > iptables for such packets, dnsmasq doesn't. I have no rules on either of the machines with iptables: root@dns:~# iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD

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 and

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

2020-04-14 Thread Simon Kelley
On 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.conf > # To disable dnsmasq's DNS server functionali

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

2020-04-14 Thread Geert Stappers
On Tue, Apr 14, 2020 at 06:51:25PM +0100, 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. Acknowledge > Here's my very very simple dnsmasq.conf > # To disable d