[PATCH 05/21] test-example: USE mtu of 1400 not 500 (!)

Ian Jackson ijackson at chiark.greenend.org.uk
Thu Apr 24 02:37:24 BST 2014


500 is less than the IPv4 minimum MTU.  1400 is the conventional value
on the SGO VPN and is a plausible choice for vpns running mostly over
reasonably sane ethernets.

Signed-off-by: Ian Jackson <ijackson at chiark.greenend.org.uk>
---
 debian/changelog                  |    1 +
 test-example/inside.conf          |    2 +-
 test-example/outside-unshare.conf |    2 +-
 test-example/outside.conf         |    2 +-
 4 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/debian/changelog b/debian/changelog
index f979239..e3e5798 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -6,6 +6,7 @@ secnet (0.3.1~~unstable) unstable; urgency=low
   * Fix netlink SEGV on clientless netlinks (i.e. configuration error).
   * Fix formatting error in p-t-p startup message.
   * Additions to the test-example suite.
+  * Fixes to MTU and fragmentation handling.
 
  --
 
diff --git a/test-example/inside.conf b/test-example/inside.conf
index a64f125..32d1081 100644
--- a/test-example/inside.conf
+++ b/test-example/inside.conf
@@ -3,7 +3,7 @@ netlink tun {
 	local-address "172.18.232.9";
 	secnet-address "172.18.232.10";
 	remote-networks "172.18.232.0/28";
-	mtu 500;
+	mtu 1400;
 	buffer sysbuffer(2048);
 	interface "secnet-test-i";
 };
diff --git a/test-example/outside-unshare.conf b/test-example/outside-unshare.conf
index c6c3b6f..2811962 100644
--- a/test-example/outside-unshare.conf
+++ b/test-example/outside-unshare.conf
@@ -3,7 +3,7 @@ netlink userv-ipif {
 	local-address "172.18.232.1";
 	secnet-address "172.18.232.2";
 	remote-networks "172.18.232.0/28";
-	mtu 1000;
+	mtu 1400;
 	buffer sysbuffer(2048);
 	userv-path "test-example/fake-userv";
 };
diff --git a/test-example/outside.conf b/test-example/outside.conf
index db78b7b..8944130 100644
--- a/test-example/outside.conf
+++ b/test-example/outside.conf
@@ -3,7 +3,7 @@ netlink tun {
 	local-address "172.18.232.1";
 	secnet-address "172.18.232.2";
 	remote-networks "172.18.232.0/28";
-	mtu 500;
+	mtu 1400;
 	buffer sysbuffer(2048);
 	interface "secnet-test-o";
 };
-- 
1.7.10.4




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