From aa3667dd07470abaf44be4c24089dee5c3cc868f Mon Sep 17 00:00:00 2001
From: Jim Harris <james.r.harris@intel.com>
Date: Tue, 21 Dec 2021 20:59:15 +0000
Subject: [PATCH] test: add iptables entry to forward packets across veth
 bridge

It seems like some distros or kernels do not automatically
forward packets across the bridge we set up in nvmf_veth_init.
So add an iptables entry to explicitly add a forwarding rule.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I50bc203afcfee888c27c0e1d77609e554dedc61e
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/10810
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
---
 test/nvmf/common.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/test/nvmf/common.sh b/test/nvmf/common.sh
index 3663f9054..d68b88b17 100644
--- a/test/nvmf/common.sh
+++ b/test/nvmf/common.sh
@@ -316,6 +316,7 @@ function nvmf_veth_init() {
 
 	# Accept connections from veth interface
 	iptables -I INPUT 1 -i $NVMF_INITIATOR_INTERFACE -p tcp --dport $NVMF_PORT -j ACCEPT
+	iptables -A FORWARD -i $NVMF_BRIDGE -o $NVMF_BRIDGE -j ACCEPT
 
 	# Verify connectivity
 	ping -c 1 $NVMF_FIRST_TARGET_IP