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| author | Simon Kelley <simon@thekelleys.org.uk> | 2023-03-07 22:07:46 +0000 |
|---|---|---|
| committer | Simon Kelley <simon@thekelleys.org.uk> | 2023-03-07 22:21:21 +0000 |
| commit | eb92fb32b746f2104b0f370b5b295bb8dd4bd5e5 (patch) | |
| tree | cca6c2faa87c7db4c33e2dbbb97352e03e7ea70a /src/config.h | |
| parent | 9a698434dd9cc0f3abbf98f9b266c491d322d20f (diff) | |
| download | dnsmasq-eb92fb32b746f2104b0f370b5b295bb8dd4bd5e5.tar.gz | |
Set the default maximum DNS UDP packet size to 1232.
http://www.dnsflagday.net/2020/ refers.
Thanks to Xiang Li for the prompt.
Diffstat (limited to 'src/config.h')
| -rw-r--r-- | src/config.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/config.h b/src/config.h index 1e7b30f..37b374e 100644 --- a/src/config.h +++ b/src/config.h @@ -19,7 +19,7 @@ #define CHILD_LIFETIME 150 /* secs 'till terminated (RFC1035 suggests > 120s) */ #define TCP_MAX_QUERIES 100 /* Maximum number of queries per incoming TCP connection */ #define TCP_BACKLOG 32 /* kernel backlog limit for TCP connections */ -#define EDNS_PKTSZ 4096 /* default max EDNS.0 UDP packet from RFC5625 */ +#define EDNS_PKTSZ 1232 /* default max EDNS.0 UDP packet from from /dnsflagday.net/2020 */ #define SAFE_PKTSZ 1232 /* "go anywhere" UDP packet size, see https://dnsflagday.net/2020/ */ #define KEYBLOCK_LEN 40 /* choose to minimise fragmentation when storing DNSSEC keys */ #define DNSSEC_WORK 50 /* Max number of queries to validate one question */ |