From 38a4fae186a007caf240e6bfb31947ffc2a7738b Mon Sep 17 00:00:00 2001
From: Stefano Brivio <sbrivio@redhat.com>
Date: Wed, 21 Jul 2021 09:59:26 +0200
Subject: dhcp: Set MTU option (26) to 65520 bytes

This value should work for all tap-like interfaces and is rather
convenient for performance testing. It will be configurable later
on.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
---
 dhcp.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'dhcp.c')

diff --git a/dhcp.c b/dhcp.c
index 337463a..4a83627 100644
--- a/dhcp.c
+++ b/dhcp.c
@@ -48,6 +48,7 @@ struct opt {
 static struct opt opts[255] = {
 	[1]  = { 0, 4, {                      0 }, 0, { 0 }, },	/* Mask */
 	[3]  = { 0, 4, {                      0 }, 0, { 0 }, },	/* Router */
+	[26] = { 0, 2, {             0xff, 0xf0 }, 0, { 0 }, },	/* MTU */
 	[51] = { 0, 4, { 0xff, 0xff, 0xff, 0xff }, 0, { 0 }, },	/* Lease time */
 	[53] = { 0, 1, {                      0 }, 0, { 0 }, },	/* Type */
 #define DHCPDISCOVER	1
-- 
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