git: 74156bb47cf0 - stable/13 - net tests: fix if_stf:6to4

The branch stable/13 has been updated by kp:

URL: https://cgit.FreeBSD.org/src/commit/?id=74156bb47cf0e1a71cdbbbce1e159baee772164e

commit 74156bb47cf0e1a71cdbbbce1e159baee772164e
Author:     Kristof Provost <kp@FreeBSD.org>
AuthorDate: 2021-11-10 11:02:34 +0000
Commit:     Kristof Provost <kp@FreeBSD.org>
CommitDate: 2021-12-11 09:39:15 +0000

    net tests: fix if_stf:6to4
    
    This test needs to have the loopback interface enabled, or route lookups
    for our own IP addresses will fail.
    
    MFC after:      3 weeks
    Sponsored by:   Rubicon Communications, LLC ("Netgate")
    Differential Revision:  https://reviews.freebsd.org/D33041
    
    (cherry picked from commit 67573b7a39b19e39536a68563fed0d940604e573)
---
 tests/sys/net/if_stf.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tests/sys/net/if_stf.sh b/tests/sys/net/if_stf.sh
index f3ed2d744c7c..693154122891 100644
--- a/tests/sys/net/if_stf.sh
+++ b/tests/sys/net/if_stf.sh
@@ -41,7 +41,7 @@ atf_test_case "6to4" "cleanup"
 		atf_skip "This test requires if_stf"
 	fi
 	if ! kldstat -q -m if_gif; then
-		atf_skip "This test requires if_stf"
+		atf_skip "This test requires if_gif"
 	fi
 
 	epair=$(vnet_mkepair)
@@ -56,6 +56,7 @@ atf_test_case "6to4" "cleanup"
 	jexec relay route -6 add default -interface $gif
 
 	vnet_mkjail client ${epair}b
+	jexec client ifconfig lo0 up
 	jexec client ifconfig ${epair}b 192.0.2.2/24 up
 	stf=$(jexec client ifconfig stf create)
 	jexec client ifconfig $stf inet6 2002:c000:0202::1/32 up