X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fplugins%2Fnat%2Fnat64_in2out.c;h=e843fcf6730f629dffcf57dd11bc7bc3c1c1dcab;hb=bb4e022502dd7f76d4f1cd705a7bac628d8c098c;hp=ddbf5850c7cf3d5e5333453f53f42c3a2ae56d1b;hpb=c2b4dbe48a01e746bfa89c4208d6e6b686270ac0;p=vpp.git

diff --git a/src/plugins/nat/nat64_in2out.c b/src/plugins/nat/nat64_in2out.c
index ddbf5850c7c..e843fcf6730 100644
--- a/src/plugins/nat/nat64_in2out.c
+++ b/src/plugins/nat/nat64_in2out.c
@@ -239,6 +239,7 @@ nat64_in2out_tcp_udp_set_cb (ip6_header_t * ip6, ip4_header_t * ip4,
       checksum = &tcp->checksum;
       csum = ip_csum_sub_even (*checksum, sport);
       csum = ip_csum_add_even (csum, udp->src_port);
+      mss_clamping (nm->sm, tcp, &csum);
       *checksum = ip_csum_fold (csum);
     }