diff --git a/test/passt_in_ns/tcp b/test/passt_in_ns/tcp
index aaf340e..319880b 100644
--- a/test/passt_in_ns/tcp
+++ b/test/passt_in_ns/tcp
@@ -32,7 +32,7 @@ host	socat -u OPEN:__BASEPATH__/big.bin TCP4:127.0.0.1:10001
 guestw
 guest	cmp test_big.bin /root/big.bin
 
-test	TCP/IPv4: host to ns: big transfer
+test	TCP/IPv4: host to ns (spliced): big transfer
 nsb	socat -u TCP4-LISTEN:10002 OPEN:__TEMP_NS_BIG__,create,trunc
 sleep	1
 host	socat -u OPEN:__BASEPATH__/big.bin TCP4:127.0.0.1:10002
@@ -90,7 +90,7 @@ host	socat -u OPEN:__BASEPATH__/small.bin TCP4:127.0.0.1:10001
 guestw
 guest	cmp test_small.bin /root/small.bin
 
-test	TCP/IPv4: host to ns: small transfer
+test	TCP/IPv4: host to ns (spliced): small transfer
 nsb	socat -u TCP4-LISTEN:10002 OPEN:__TEMP_NS_SMALL__,create,trunc
 sleep	1
 host	socat -u OPEN:__BASEPATH__/small.bin TCP4:127.0.0.1:10002
@@ -146,7 +146,7 @@ host	socat -u OPEN:__BASEPATH__/big.bin TCP6:[::1]:10001
 guestw
 guest	cmp test_big.bin /root/big.bin
 
-test	TCP/IPv6: host to ns: big transfer
+test	TCP/IPv6: host to ns (spliced): big transfer
 nsb	socat -u TCP6-LISTEN:10002 OPEN:__TEMP_NS_BIG__,create,trunc
 sleep	1
 host	socat -u OPEN:__BASEPATH__/big.bin TCP6:[::1]:10002
@@ -204,7 +204,7 @@ host	socat -u OPEN:__BASEPATH__/small.bin TCP6:[::1]:10001
 guestw
 guest	cmp test_small.bin /root/small.bin
 
-test	TCP/IPv6: host to ns: small transfer
+test	TCP/IPv6: host to ns (spliced): small transfer
 nsb	socat -u TCP6-LISTEN:10002 OPEN:__TEMP_NS_SMALL__,create,trunc
 sleep	1
 host	socat -u OPEN:__BASEPATH__/small.bin TCP6:[::1]:10002
diff --git a/test/passt_in_ns/udp b/test/passt_in_ns/udp
index 3426ab9..791511c 100644
--- a/test/passt_in_ns/udp
+++ b/test/passt_in_ns/udp
@@ -30,7 +30,7 @@ host	socat -u OPEN:__BASEPATH__/medium.bin UDP4:127.0.0.1:10001,shut-null
 guestw
 guest	cmp test.bin /root/medium.bin
 
-test	UDP/IPv4: host to ns
+test	UDP/IPv4: host to ns (recvmmsg/sendmmsg)
 nsb	socat -u UDP4-LISTEN:10002,null-eof OPEN:__TEMP_NS__,create,trunc
 sleep	1
 host	socat -u OPEN:__BASEPATH__/medium.bin UDP4:127.0.0.1:10002,shut-null
@@ -88,7 +88,7 @@ host	socat -u OPEN:__BASEPATH__/medium.bin UDP6:[::1]:10001,shut-null
 guestw
 guest	cmp test.bin /root/medium.bin
 
-test	UDP/IPv6: host to ns
+test	UDP/IPv6: host to ns (recvmmsg/sendmmsg)
 nsb	socat -u UDP6-LISTEN:10002,null-eof OPEN:__TEMP_NS__,create,trunc
 sleep	1
 host	socat -u OPEN:__BASEPATH__/medium.bin UDP6:[::1]:10002,shut-null
diff --git a/test/pasta/tcp b/test/pasta/tcp
index 6ab18c5..53b6f25 100644
--- a/test/pasta/tcp
+++ b/test/pasta/tcp
@@ -19,8 +19,8 @@ set	TEMP_NS_BIG __STATEDIR__/test_ns_big.bin
 set	TEMP_SMALL __STATEDIR__/test_small.bin
 set	TEMP_NS_SMALL __STATEDIR__/test_ns_small.bin
 
-test	TCP/IPv4: host to ns: big transfer
-nsb	socat -u TCP4-LISTEN:10002,bind=127.0.0.1 OPEN:__TEMP_NS_BIG__,create,trunc
+test	TCP/IPv4: host to ns (spliced): big transfer
+nsb	socat -u TCP4-LISTEN:10002 OPEN:__TEMP_NS_BIG__,create,trunc
 host	socat -u OPEN:__BASEPATH__/big.bin TCP4:127.0.0.1:10002
 nsw
 check	cmp __BASEPATH__/big.bin __TEMP_NS_BIG__
@@ -38,8 +38,8 @@ ns	socat -u OPEN:__BASEPATH__/big.bin TCP4:__GW__:10003
 hostw
 check	cmp __BASEPATH__/big.bin __TEMP_BIG__
 
-test	TCP/IPv4: host to ns: small transfer
-nsb	socat -u TCP4-LISTEN:10002,bind=127.0.0.1 OPEN:__TEMP_NS_SMALL__,create,trunc
+test	TCP/IPv4: host to ns (spliced): small transfer
+nsb	socat -u TCP4-LISTEN:10002 OPEN:__TEMP_NS_SMALL__,create,trunc
 host	socat OPEN:__BASEPATH__/small.bin TCP4:127.0.0.1:10002
 nsw
 check	cmp __BASEPATH__/small.bin __TEMP_NS_SMALL__
@@ -57,8 +57,8 @@ ns	socat -u OPEN:__BASEPATH__/small.bin TCP4:__GW__:10003
 hostw
 check	cmp __BASEPATH__/small.bin __TEMP_SMALL__
 
-test	TCP/IPv6: host to ns: big transfer
-nsb	socat -u TCP6-LISTEN:10002,bind=[::1] OPEN:__TEMP_NS_BIG__,create,trunc
+test	TCP/IPv6: host to ns (spliced): big transfer
+nsb	socat -u TCP6-LISTEN:10002 OPEN:__TEMP_NS_BIG__,create,trunc
 host	socat -u OPEN:__BASEPATH__/big.bin TCP6:[::1]:10002
 nsw
 check	cmp __BASEPATH__/big.bin __TEMP_NS_BIG__
@@ -77,8 +77,8 @@ ns	socat -u OPEN:__BASEPATH__/big.bin TCP6:[__GW6__%__IFNAME__]:10003
 hostw
 check	cmp __BASEPATH__/big.bin __TEMP_BIG__
 
-test	TCP/IPv6: host to ns: small transfer
-nsb	socat -u TCP6-LISTEN:10002,bind=[::1] OPEN:__TEMP_NS_SMALL__,create,trunc
+test	TCP/IPv6: host to ns (spliced): small transfer
+nsb	socat -u TCP6-LISTEN:10002 OPEN:__TEMP_NS_SMALL__,create,trunc
 host	socat -u OPEN:__BASEPATH__/small.bin TCP6:[::1]:10002
 nsw
 check	cmp __BASEPATH__/small.bin __TEMP_NS_SMALL__
diff --git a/test/pasta/udp b/test/pasta/udp
index 30e3a85..7734d02 100644
--- a/test/pasta/udp
+++ b/test/pasta/udp
@@ -17,8 +17,8 @@ htools	dd socat ip jq
 set	TEMP __STATEDIR__/test.bin
 set	TEMP_NS __STATEDIR__/test_ns.bin
 
-test	UDP/IPv4: host to ns
-nsb	socat -u UDP4-LISTEN:10002,bind=127.0.0.1,null-eof OPEN:__TEMP_NS__,create,trunc
+test	UDP/IPv4: host to ns (recvmmsg/sendmmsg)
+nsb	socat -u UDP4-LISTEN:10002,null-eof OPEN:__TEMP_NS__,create,trunc
 host	socat OPEN:__BASEPATH__/medium.bin UDP4:127.0.0.1:10002,shut-null
 nsw
 check	cmp __BASEPATH__/medium.bin __TEMP_NS__
@@ -37,8 +37,8 @@ ns	socat -u OPEN:__BASEPATH__/medium.bin UDP4:__GW__:10003,shut-null
 hostw
 check	cmp __BASEPATH__/medium.bin __TEMP__
 
-test	UDP/IPv6: host to ns
-nsb	socat -u UDP6-LISTEN:10002,bind=[::1],null-eof OPEN:__TEMP_NS__,create,trunc
+test	UDP/IPv6: host to ns (recvmmsg/sendmmsg)
+nsb	socat -u UDP6-LISTEN:10002,null-eof OPEN:__TEMP_NS__,create,trunc
 host	socat -u OPEN:__BASEPATH__/medium.bin UDP6:[::1]:10002,shut-null
 nsw
 check	cmp __BASEPATH__/medium.bin __TEMP_NS__