Missing brctl argument

[Denna]

Why doesn't brctl recognize the showmacs argument ?

 

[john9527]

They may have removed support in the SDK for the AC88 (it's up to ASUS what subcommands to support). It does work on the AC68U on my fork.

admin@RT-AC68P-0000:/tmp/home/root# brctl showmacs br0 | pfilter
port no mac addr                is local?       ageing timer
  1     xx:xx:xx:xx:25:89       no                 3.19
  1     xx:xx:xx:xx:4c:ba       no                 6.67
  1     xx:xx:xx:xx:8b:17       no                18.11
  1     xx:xx:xx:xx:0e:56       no                 4.65
  1     xx:xx:xx:xx:ec:58       yes                0.00
  4     xx:xx:xx:xx:ec:59       yes                0.00
  3     xx:xx:xx:xx:ec:5c       yes                0.00
  5     xx:xx:xx:xx:ec:5d       yes                0.00
  1     xx:xx:xx:xx:25:93       no                31.95
  3     xx:xx:xx:xx:a7:ac       no                 1.00
  1     xx:xx:xx:xx:d9:55       no                 0.01
  2     xx:xx:xx:xx:14:e6       no                 1.83
  1     xx:xx:xx:xx:55:03       no                 9.34
  3     xx:xx:xx:xx:00:a8       no                 0.13
  1     xx:xx:xx:xx:fe:71       no                 1.40
  1     xx:xx:xx:xx:6b:a7       no                 1.83
  1     xx:xx:xx:xx:b4:cc       no                37.59

 

[RMerlin]

Why doesn't brctl recognize the showmacs argument ?

Works for me on my RT-AC88U.

 

[Denna]

Using the latest firmware, this argument isn't supported.

 

[RMerlin]

Using the latest firmware, this argument isn't supported.

Then you have a different copy of brctl on your router. I'm obviously also using "the latest firmware"...

 

[eddiez]

Works fine on AC68 with 380.68_4 from any directory...

 

[Veky]

All good on AC66U_B1.

ASUSWRT-Merlin RT-AC68U 380.68-4 Wed Oct  4 19:01:14 UTC 2017
Veky@Antares:/tmp/home/root# brctl showmacs br0
port no mac addr                is local?       ageing timer
  1     xx:xx:xx:xx:xx:xx       no                13.71
  1     xx:xx:xx:xx:xx:xx       no                 0.11
  1     xx:xx:xx:xx:xx:xx       no                 0.01
  1     xx:xx:xx:xx:xx:xx       no                30.15
  1     xx:xx:xx:xx:xx:xx       no                 1.20

 

[Martineau]

The firmware contains two versions.

There's a /usr/sbin/brctl and another included in busybox.

If you don't specify ./usr/sbin/brctl, then the default version is the reduced functionality brctl in busybox.

Really?

This is what I get on my system

which   brctl

/usr/sbin/brctl

ls   -lah /usr/sbin  | grep   -E   "brctl|busybox"

lrwxrwxrwx    1 admin    root          17 Oct  4 20:59 arping -> ../../bin/busybox
-rwxr-xr-x    1 admin    root       20.4K Oct  4 21:00 brctl
lrwxrwxrwx    1 admin    root          17 Oct  4 20:59 chpasswd -> ../../bin/busybox
lrwxrwxrwx    1 admin    root          17 Oct  4 20:59 chroot -> ../../bin/busybox
lrwxrwxrwx    1 admin    root          17 Oct  4 20:59 crond -> ../../bin/busybox
lrwxrwxrwx    1 admin    root          17 Oct  4 20:59 ether-wake -> ../../bin/busybox
lrwxrwxrwx    1 admin    root          17 Oct  4 20:59 ntpd -> ../../bin/busybox
lrwxrwxrwx    1 admin    root          17 Oct  4 20:59 sendmail -> ../../bin/busybox
lrwxrwxrwx    1 admin    root          17 Oct  4 20:59 telnetd -> ../../bin/busybox

 

[RMerlin]

My guess is he installed a different busybox build through Entware, and he's ending up running that one instead of the one provided by the firmware.