From: Petr Špaček <pspacek@isc.org>
Date: Wed, 25 Aug 2021 12:58:46 +0000 (+0200)
Subject: Lower loopback MTU size on other unix systems as well
X-Git-Tag: v9.17.18~11^2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d8363845b683b2db638cedb8f4b866e4a910271d;p=thirdparty%2Fbind9.git

Lower loopback MTU size on other unix systems as well

This change should cover recent versions of:
Solaris, illumos, OpenBSD, FreeBSD, Dragonfly BSD, NetBSD.
---

diff --git a/bin/tests/system/ifconfig.sh.in b/bin/tests/system/ifconfig.sh.in
index 1e8ccc2521f..d149962f5e9 100755
--- a/bin/tests/system/ifconfig.sh.in
+++ b/bin/tests/system/ifconfig.sh.in
@@ -19,9 +19,9 @@
 #       fd92:7065:b8e:99ff::{1..2}
 #       fd92:7065:b8e:ff::{1..2}
 #
-# On Linux, we also set the MTU on the 1500 bytes to match the default MTU on
-# physical interfaces, so we can properly test the cases with packets bigger
-# than interface MTU.
+# We also set the MTU on the 1500 bytes to match the default MTU on physical
+# interfaces, so we can properly test the cases with packets bigger than
+# interface MTU.
 
 top_srcdir=@abs_top_srcdir@
 
@@ -68,6 +68,7 @@ case "$1" in
 			    *-*-solaris2.[8-9]|*-*-solaris2.1[0-9])
 				/sbin/ifconfig lo0:$int plumb
 				/sbin/ifconfig lo0:$int 10.53.$i.$ns up
+				/sbin/ifconfig lo0:$int mtu 1500
 				/sbin/ifconfig lo0:$int inet6 plumb
 				[ "$ipv6" ] && /sbin/ifconfig lo0:$int \
 					inet6 fd92:7065:b8e:${ipv6}ff::$ns up
@@ -90,13 +91,15 @@ case "$1" in
 				;;
 			    *-unknown-freebsd*)
 				ifconfig lo0 10.53.$i.$ns alias \
-					netmask 0xffffffff
+					netmask 0xffffffff \
+					mtu 1500
 				[ "$ipv6" ] && ifconfig lo0 inet6 \
 					fd92:7065:b8e:${ipv6}ff::$ns alias
 				;;
 			    *-unknown-dragonfly*|*-unknown-netbsd*|*-unknown-openbsd*)
 				ifconfig lo0 10.53.$i.$ns alias \
-					netmask 255.255.255.0
+					netmask 255.255.255.0 \
+					mtu 1500
 				[ "$ipv6" ] && ifconfig lo0 inet6 \
 					fd92:7065:b8e:${ipv6}ff::$ns alias
 				;;