SRC_REWRITE_IP6_3
sa.sin6_addr.s6_addr32[3] = bpf_htonl(SRC_REWRITE_IP6_3);
ctx->msg_src_ip6[3] = bpf_htonl(SRC_REWRITE_IP6_3);
ctx->msg_src_ip6[3] = bpf_htonl(SRC_REWRITE_IP6_3);
ctx->msg_src_ip6[3] = bpf_htonl(SRC_REWRITE_IP6_3);