From 865ee192b4519968ee2a546c46a7cd4910c2e6c9 Mon Sep 17 00:00:00 2001
From: Martin Stein <martin.stein@genode-labs.com>
Date: Thu, 14 Jul 2022 15:32:09 +0200
Subject: [PATCH] nic_router: no checksum update on IP routing

The router used to update IPv4 checksums when routing via an <ip> rule
despite the fact that it doesn't change any IPv4 header fields in this case.

Ref #4555
---
 repos/os/src/server/nic_router/interface.cc | 1 -
 1 file changed, 1 deletion(-)

diff --git a/repos/os/src/server/nic_router/interface.cc b/repos/os/src/server/nic_router/interface.cc
index 79a27de36c..a8552648d8 100644
--- a/repos/os/src/server/nic_router/interface.cc
+++ b/repos/os/src/server/nic_router/interface.cc
@@ -1326,7 +1326,6 @@ void Interface::_handle_ip(Ethernet_frame          &eth,
 
 			Domain &remote_domain = rule.domain();
 			_adapt_eth(eth, ip.dst(), pkt, remote_domain);
-			ip.update_checksum();
 			remote_domain.interfaces().for_each([&] (Interface &interface) {
 				interface.send(eth, size_guard);
 			});