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dnsmasq-discuss

[Dnsmasq-discuss] Announce: dnsmasq-2.92rc2 Re: [Dnsmasq-discuss] [PATCH] Fix arguments order for chaos subdomain check Re: [Dnsmasq-discuss] patch: block-file/allow-file - for review/feedback Re: [Dnsmasq-discuss] patch: block-file/allow-file - for review/feedback Re: [Dnsmasq-discuss] patch: block-file/allow-file - for review/feedback Re: [Dnsmasq-discuss] patch: block-file/allow-file - for review/feedback [Dnsmasq-discuss] patch: block-file/allow-file - for review/feedback Re: [Dnsmasq-discuss] server= with interface parameter changes behavior over time [Dnsmasq-discuss] NFTsets and hosts-files [Dnsmasq-discuss] [PATCH] Allow expired RRSIGs when stale caching is enabled [Dnsmasq-discuss] [PATCH] Fix local host records being overridden by upstream NXDOMAIN [Dnsmasq-discuss] [PATCH] Fix arguments order for chaos subdomain check Re: [Dnsmasq-discuss] Malformed RRSIG Can Crash dnsmasq [Dnsmasq-discuss] Malformed NSEC/NSEC3 Can Hang dnsmasq [Dnsmasq-discuss] Malformed RRSIG Can Crash dnsmasq [Dnsmasq-discuss] Security - IMPORTANT Re: [Dnsmasq-discuss] Issue with circuit-id matching on dhcp requests Re: [Dnsmasq-discuss] Issue with circuit-id matching on dhcp requests Re: [Dnsmasq-discuss] Issue with circuit-id matching on dhcp requests [Dnsmasq-discuss] Issue with circuit-id matching on dhcp requests Re: [Dnsmasq-discuss] [PATCH] bpf.c: fix memory leak in arp_enumerate() on BSD Re: [Dnsmasq-discuss] [PATCH] bpf.c: fix memory leak in arp_enumerate() on BSD Re: [Dnsmasq-discuss] dnssec problem here and now Re: [Dnsmasq-discuss] dnssec problem here and now [Dnsmasq-discuss] dnssec problem here and now Re: [Dnsmasq-discuss] server= with interface parameter changes behavior over time Re: [Dnsmasq-discuss] [PATCH] bpf.c: fix memory leak in arp_enumerate() on BSD Re: [Dnsmasq-discuss] [PATCH] bpf.c: fix memory leak in arp_enumerate() on BSD Re: [Dnsmasq-discuss] [PATCH] Preserve existing log file permissions when adding group-write bit. [Dnsmasq-discuss] server= with interface parameter changes behavior over time [Dnsmasq-discuss] [PATCH] bpf.c: fix memory leak in arp_enumerate() on BSD Re: [Dnsmasq-discuss] [PATCH] Preserve existing log file permissions when adding group-write bit. Re: [Dnsmasq-discuss] [BUG] SIGSEGV when parsing invalid "--interface-name" or "--dynamic-host" options Re: [Dnsmasq-discuss] Suggestion to increase default for max-tcp-connections [Dnsmasq-discuss] server priority clarification after e86d53c [Dnsmasq-discuss] [BUG] SIGSEGV when parsing invalid "--interface-name" or "--dynamic-host" options [Dnsmasq-discuss] Suggestion to increase default for max-tcp-connections Re: [Dnsmasq-discuss] [PATCH] Preserve existing log file permissions when adding group-write bit. [Dnsmasq-discuss] [Bug] Heap buffer overflow in cache_recv_insert() due to pipe de-synchronization Re: [Dnsmasq-discuss] Regression/Feature Request for 2.92 Re: [Dnsmasq-discuss] [PATCH] DHCPv6 network range is not checked well with dhcp-sequential-ip [Dnsmasq-discuss] [Bug] Buffer underflow in hostname_issubdomain() [Dnsmasq-discuss] [PATCH] Don't penalize conditional forwarders for REFUSED responses [Dnsmasq-discuss] BUG:Heap buffer overflow in src/forward.c due to incorrect pointer arithmetic (CWE-122) Re: [Dnsmasq-discuss] Regression/Feature Request for 2.92 Re: [Dnsmasq-discuss] Regression/Feature Request for 2.92 Re: [Dnsmasq-discuss] Regression/Feature Request for 2.92 Re: [Dnsmasq-discuss] Potential privacy issue: filter-rr inefficiency Re: [Dnsmasq-discuss] TCP optimization regressions Re: [Dnsmasq-discuss] Bug: Null pointer dereference in domain-match.c at line 82 (dnsmasq 2.92test21-1-gee09f06) [Dnsmasq-discuss] [PATCH] ubus: add lease management methods [Dnsmasq-discuss] Regression/Feature Request for 2.92 [Dnsmasq-discuss] cotillon por mayor [Dnsmasq-discuss] Por Qué el Alquiler de Plataformas Elevadoras es la Clave del Éxito para Tu Empresa Re: [Dnsmasq-discuss] [PATCH] dnsmasq: failed to create inotify for /etc/resolv.conf: No space left on device [Dnsmasq-discuss] Bug: Null pointer dereference in domain-match.c at line 82 (dnsmasq 2.92test21-1-gee09f06) [Dnsmasq-discuss] TCP optimization regressions Re: [Dnsmasq-discuss] [PATCH] dnsmasq: failed to create inotify for /etc/resolv.conf: No space left on device Re: [Dnsmasq-discuss] dnsmasq 2.92 build-error against Nettle 4.0 Re: [Dnsmasq-discuss] dnsmasq 2.92 build-error against Nettle 4.0 Re: [Dnsmasq-discuss] dnsmasq 2.92 build-error against Nettle 4.0 [Dnsmasq-discuss] dnsmasq 2.92 build-error against Nettle 4.0 [Dnsmasq-discuss] Potential privacy issue: filter-rr inefficiency Re: [Dnsmasq-discuss] Bug with NS records when using dnsmasq as authoritative nameserver without specific auth-interface Re: [Dnsmasq-discuss] Bug with NS records when using dnsmasq as authoritative nameserver without specific auth-interface Re: [Dnsmasq-discuss] segfault with an empty OPTION_SNAME [Dnsmasq-discuss] Bug with NS records when using dnsmasq as authoritative nameserver without specific auth-interface Re: [Dnsmasq-discuss] segfault with an empty OPTION_SNAME [Dnsmasq-discuss] segfault with an empty OPTION_SNAME Re: [Dnsmasq-discuss] Shut down caused by device request address. Re: [Dnsmasq-discuss] Shut down caused by device request address. Re: [Dnsmasq-discuss] Shut down caused by device request address. [Dnsmasq-discuss] Shut down caused by device request address. [Dnsmasq-discuss] [PATCH] dnsmasq: failed to create inotify for /etc/resolv.conf: No space left on device Re: [Dnsmasq-discuss] dnsmasq with high availability and dynamic range [Dnsmasq-discuss] dnsmasq with high availability and dynamic range [Dnsmasq-discuss] PATCH] PXE boot server (PXEBS) responses broken in 2.92 — missing else in dhcp.c [Dnsmasq-discuss] PATCH] PXE boot server (PXEBS) responses broken in 2.92 — missing else in dhcp.c [Dnsmasq-discuss] Potential memory leak Re: [Dnsmasq-discuss] Incorrect SERVFAIL on dnssec and rivcoed.org. domain [Dnsmasq-discuss] Announce: dnsmasq-2.92 [Dnsmasq-discuss] DNSSEC validation fails for wildcard subdomains [Dnsmasq-discuss] Add an option to not always add a pseudo header? Re: [Dnsmasq-discuss] Announce: 2.92.rc1, rc3 & patches overseen Re: [Dnsmasq-discuss] Portable PXE boot appliance [Dnsmasq-discuss] Portable PXE boot appliance Re: [Dnsmasq-discuss] Question about IPv6 settings [Dnsmasq-discuss] Incorrect SERVFAIL on dnssec and rivcoed.org. domain [Dnsmasq-discuss] Question about IPv6 settings Re: [Dnsmasq-discuss] iPhone 17 Pro Max DHCP not working [Dnsmasq-discuss] iPhone 17 Pro Max DHCP not working Re: [Dnsmasq-discuss] [PATCH 0/3] Announce: 2.92.rc1 [Dnsmasq-discuss] [PATCH 0/3] Announce: 2.92.rc1 [Dnsmasq-discuss] [PATCH 3/3] Fix some issues with the swedish manual page, some causing lintian warnings [Dnsmasq-discuss] [PATCH2/3] Fix typos in the english manual page [Dnsmasq-discuss] [PATCH 1/3] Remove trailing white space from dnsmasq.conf.example [Dnsmasq-discuss] Announce: 2.92.rc1 [Dnsmasq-discuss] dnsmasq rejects TCP queries originating from Kubernetes pods Re: [Dnsmasq-discuss] Git: Is first dhcp.c address_available() for/if code correct? [Dnsmasq-discuss] [PATCH dnsmasq 1/1] fix SIGSEGV in dbus.c when no dhcp-range is configured
Re: [Dnsmasq-discuss] dnsmasq does not forward requests with no default route is set
Simon Kelley · 2026-01-12 · via dnsmasq-discuss
Is there a route in the kernel to <upstream resolver> that works when the default route is not present?

the @ppp2 syntax sets SO_BINDTODEVICE on the socket used to talk upstream, but that's not going to work unless there's a route.


Simon.

On 30.12.2025 07:04, Luigi Baldoni via Dnsmasq-discuss wrote:
   Hello,
before stating the obvious, this happens when server=<upstream resolver>@ppp2 
is set.

On my system I have concurrent ppp connections, each used independently.
If ppp0 is down or a default route through it is not set, dnsmasq won't forward 
queries to
the upstream resolver, even though it seems to use only ppp2 in normal 
conditions. At least
that's what tcpdump shows.

Any idea what's happening? I could try using uid-based policy routing I 
suppose, but I don't
get why this would be necessary.

Regards


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