From 4cc6a2595947a0e2f13b37637899bfc50f8509aa Mon Sep 17 00:00:00 2001 From: Arne Schwabe Date: Sun, 13 Jul 2014 14:28:47 +0200 Subject: Fix server routes not working in topology subnet with --server [v3] The IPv4 routing code needs an IPv4 address to point a route to, and in --topology subnet mode, the *server* did not have one set by default. So we now just default --route-gateway to the next address right after the server address - the specific address doesn't matter, as the correct next-hop will not be resolved by the host OS but by the OpenVPN daemon. All that is needed is "it's in the subnet routed to the tun interface". Using the server address itself would work on unix, but doesn't work with the Windows TAP driver (as it does not spoof ARP responses for itself). Signed-off-by: Arne Schwabe Signed-off-by: Gert Doering Acked-by: Arne Schwabe Acked-by: Gert Doering Message-Id: <1405254527-23833-1-git-send-email-gert@greenie.muc.de> URL: http://article.gmane.org/gmane.network.openvpn.devel/8904 --- src/openvpn/helper.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'src/openvpn/helper.c') diff --git a/src/openvpn/helper.c b/src/openvpn/helper.c index d9eef03..0ed0b2b 100644 --- a/src/openvpn/helper.c +++ b/src/openvpn/helper.c @@ -232,6 +232,8 @@ helper_client_server (struct options *o) * if !nopool: * ifconfig-pool 10.8.0.2 10.8.0.254 255.255.255.0 * push "route-gateway 10.8.0.1" + * if route-gateway unset: + * route-gateway 10.8.0.2 */ if (o->server_defined) @@ -311,8 +313,10 @@ helper_client_server (struct options *o) ifconfig_pool_verify_range (M_USAGE, o->ifconfig_pool_start, o->ifconfig_pool_end); } o->ifconfig_pool_netmask = o->server_netmask; - + push_option (o, print_opt_route_gateway (o->server_network + 1, &o->gc), M_USAGE); + if (!o->route_default_gateway) + o->route_default_gateway = print_in_addr_t (o->server_network + 2, 0, &o->gc); } else ASSERT (0); -- cgit