ppp: enable IPv6CP by default

Signed-off-by: Steven Barth <steven@midlink.org>

Backport of r42158

git-svn-id: svn://svn.openwrt.org/openwrt/branches/barrier_breaker@42355 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/network/services/ppp/Makefile

@@ -10,7 +10,7 @@ include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=ppp
 PKG_VERSION:=2.4.6
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=ftp://ftp.samba.org/pub/ppp/

package/network/services/ppp/files/ppp.sh

@@ -26,7 +26,11 @@ ppp_generic_setup() {
 	local config="$1"; shift
 
 	json_get_vars ipv6 demand keepalive username password pppd_options pppname
-	[ "$ipv6" = 1 ] || ipv6=""
+	if [ "$ipv6" = 0 ]; then
+		ipv6=""
+	else
+		ipv6=1
+	fi
 	if [ "${demand:-0}" -gt 0 ]; then
 		demand="precompiled-active-filter /etc/ppp/filter demand idle $demand"
 	else