In WRLinux-6, "netstat" does not support SCTP option: "netstat -aS". There is already a defetc for this issue for wrlinux-3.0.3 and wrlinux-5. It seems it is supported in wrlinux-4.3 WIND00373260 : net-tools-1.60: "netstat" does not support SCTP / netstat -aS"
1) WRLinux-6 (commonpc, kernel=standard rootfs=glibc_small or glibc_std) 2) make start-target 3) netstat -aS "netstat" does not support 'S'(SCTP) option. --- root@qemu0:/# netstat -aS /bin/netstat: invalid option -- 'S' BusyBox v1.21.1 (2015-11-18 16:19:00 EST) multi-call binary. Usage: netstat [-ral] [-tuwx] [-en] root@qemu0:/# ---