5 Ethernet port on 751 but only 4 usable?

hgonzale · November 6, 2014, 7:34pm

I have an 751U-2HnD and when I received it, the Ethernet port 2 came with a tape.

I tried to use this port but is not working. Is a normal condition when is setup like Master?

I have Ethe1 = WAN
Ether 2 = Master
Ether 3, 4, 5 = Ether 2 Slave.

I setup other 950/951 routers and I am able to use this port, but I don´t know what is happening.

Here some information:

[admin@Springfield Mikrotik] /interface> print
Flags: D - dynamic, X - disabled, R - running, S - slave

NAME TYPE ACTUAL-MTU L2MTU

0 R ether1-gateway ether 1500 1600
1 RS ether2-master-local ether 1500 1598
2 S ether3-slave-local ether 1500 1598
3 S ether4-slave-local ether 1500 1598
4 RS ether5-slave-local ether 1500 1598
5 Airbnb wlan
6 XS wlan1 wlan 1500 2290
7 R bridge-local bridge 1500 1598
8 X ppptp-usa pptp-out
9 X rosaplata pptp-out

[admin@Springfield Mikrotik] /interface> export

nov/06/2014 19:10:12 by RouterOS 6.21.1

software id = FPK2-WSEZ

/interface bridge
add admin-mac=00:0C:42:FB:21:F9 auto-mac=no mtu=1500 name=bridge-local
/interface ethernet
set [ find default-name=ether1 ] name=ether1-gateway
set [ find default-name=ether2 ] name=ether2-master-local
set [ find default-name=ether3 ] master-port=ether2-master-local name=ether3-slave-local
set [ find default-name=ether4 ] master-port=ether2-master-local name=ether4-slave-local
set [ find default-name=ether5 ] master-port=ether2-master-local name=ether5-slave-local
/interface pptp-client
add add-default-route=no allow=chap,mschap1 connect-to=HIDDEN dial-on-demand=no disabled=yes
keepalive-timeout=60 max-mru=1460 max-mtu=1460 mrru=disabled name=ppptp-usa password=hg2034 profile=
servidor-linux user=HIDDEN
add add-default-route=no allow=chap,mschap1,mschap2 connect-to=HIDDEN dial-on-demand=no disabled=yes
keepalive-timeout=60 max-mru=1460 max-mtu=1460 mrru=disabled name=rosaplata password=hg2034 profile=
servidor-linux user=HIDDEN
/interface wireless security-profiles
set [ find default=yes ] eap-methods=“” group-ciphers=“” mode=static-keys-required supplicant-identity=MikroTik
unicast-ciphers=“”
add authentication-types=wpa2-psk eap-methods=“” mode=dynamic-keys name=primary supplicant-identity=“”
wpa2-pre-shared-key=“HIDDEN”
add authentication-types=wpa2-psk eap-methods=“” mode=dynamic-keys name=airbnb supplicant-identity=“”
wpa2-pre-shared-key=“HIDDEN”
/interface wireless
set [ find default-name=wlan1 ] band=2ghz-b/g default-forwarding=no frequency=2447 l2mtu=2290 mode=ap-bridge
security-profile=primary ssid=accesointernetsatelital.com
add default-forwarding=no disabled=no mac-address=02:0C:42:FB:21:FD master-interface=wlan1 name=Airbnb
security-profile=airbnb ssid=airbnb wds-cost-range=0 wds-default-cost=0
/interface bridge port
add bridge=bridge-local interface=wlan1
add bridge=bridge-local interface=ether2-master-local
add bridge=bridge-local interface=Airbnb

Thank you. If you need further info, write me. Thank you

plisken · November 7, 2014, 1:33pm

If everything is normal you can use ether2.

.
It’s not normal the routerboard come with tape on this port,
maby a mistake from your seller and maybe the ethernet port is broken

hgonzale · November 7, 2014, 2:11pm

Oh thank you, but in this page: http://wiki.mikrotik.com/wiki/Switch_Chip_Features

In the section: Features
We can find this paragraph:

Switching feature allows wire speed traffic passing among a group of ports, like the ports were a regular ethernet switch. You configure this feature by setting a “master-port” property to one ore more ports in /interface ethernet menu. A ‘master’ port will be the port through which the RouterOS will communicate to all ports in the group. Interfaces for which the ‘master’ port is specified become inactive - no traffic is received on them and no traffic can be sent out.

It said: the master port became inactive… And this is happening to me…

plisken · November 7, 2014, 2:18pm

What RouterOs you have?

Go to new terminal type export and post the result here.

I copy and paste this to my routerboard en see what happend

Caution: remove sensitive data like passwords first.

I have tested with the same routerboard.
Default settings and ether2 works like a charm.
Here export from the routerboard

/interface bridge
add admin-mac=D4:CA:6D:6A:C3:1F auto-mac=no name=bridge-local
/interface ethernet
set [ find default-name=ether1 ] name=ether1-gateway
set [ find default-name=ether2 ] name=ether2-master-local
set [ find default-name=ether3 ] master-port=ether2-master-local name=
ether3-slave-local
set [ find default-name=ether4 ] master-port=ether2-master-local name=
ether4-slave-local
set [ find default-name=ether5 ] master-port=ether2-master-local name=
ether5-slave-local
/interface wireless
set [ find default-name=wlan1 ] band=2ghz-b/g/n channel-width=20/40mhz-ht-above
disabled=no distance=indoors l2mtu=2290 mode=ap-bridge ssid=MikroTik-6AC323
wireless-protocol=802.11
/ip neighbor discovery
set ether1-gateway discover=no
/ip pool
add name=default-dhcp ranges=192.168.88.10-192.168.88.254
/ip dhcp-server
add address-pool=default-dhcp disabled
/system logging action
set 2 remember=yes
/tool user-manager customer
set admin access=
own-routers,own-users,own-profiles
/interface bridge port
add bridge=bridge-local interface=ethe
add bridge=bridge-local interface=wlan
/ip address
add address=192.168.88.1/24 comment="d
bridge-local network=192.168.88.0
/ip dhcp-client
add comment=“default configuration” dh
interface=ether1-gateway
/ip dhcp-server network
add address=192.168.88.0/24 comment="d
192.168.88.1 gateway=192.168.88.1
/ip dns
set allow-remote-requests=yes
/ip dns static
add address=192.168.88.1 name=router
/ip firewall filter
add chain=input comment="default confi
add chain=input comment="default confi
add chain=input comment="default confi
add action=drop chain=input comment="d
ether1-gateway
add chain=forward comment="default con
add chain=forward comment="default con
add action=drop chain=forward comment=
invalid
/ip firewall nat
add action=masquerade chain=srcnat com
out-interface=ether1-gateway
/ip upnp
set allow-disable-external-interface=n
/snmp
set trap-community=public
/system leds
set 0 interface=wlan1
/tool mac-server
set [ find default=yes ] disabled=yes
add interface=ether2-master-local
add interface=ether3-slave-local
add interface=ether4-slave-local
add interface=ether5-slave-local
add interface=wlan1
add interface=bridge-local
/tool mac-server mac-winbox
set [ find default=yes ] disabled=yes
add interface=ether2-master-local
add interface=ether3-slave-local
add interface=ether4-slave-local
add interface=ether5-slave-local
add interface=wlan1
add interface=bridge-local

docmarius · November 7, 2014, 3:50pm

This is not happening to you. It is said in the manual that all slave ports become inactive. Not the master.
Inactive from the configuration’s point of view. You can not assign IPs to them, you can not define routing paths…
But all ports stay electrically active, they are just treated as a single interface which has the master’s ID, linked together as a switch.
The wording is not very clear, but this is what it states.

plisken · November 7, 2014, 4:15pm

Well explained

hgonzale · November 7, 2014, 8:27pm

Thank you!!! I understand.

Here the result again (I am thinking that the port is out…, it doesn´t matter for me, is a simple curiosity…)

/interface bridge
add admin-mac=00:0C:42:FB:21:F9 auto-mac=no mtu=1500 name=bridge-local
/interface bridge port
add bridge=bridge-local interface=wlan1
add bridge=bridge-local interface=ether2-master-local
add bridge=bridge-local interface=Airbnb

[admin@Springfield Mikrotik] /interface ethernet> export

nov/07/2014 21:21:47 by RouterOS 6.21.1

software id = FPK2-WSEZ

/interface ethernet
set [ find default-name=ether1 ] name=ether1-gateway
set [ find default-name=ether2 ] name=ether2-master-local
set [ find default-name=ether3 ] master-port=ether2-master-local name=ether3-slave-local
set [ find default-name=ether4 ] master-port=ether2-master-local name=ether4-slave-local
set [ find default-name=ether5 ] master-port=ether2-master-local name=ether5-slave-local

[admin@Springfield Mikrotik] /interface wireless> export

nov/07/2014 21:22:37 by RouterOS 6.21.1

software id = FPK2-WSEZ

/interface wireless security-profiles
set [ find default=yes ] eap-methods=“” group-ciphers=“” mode=static-keys-required supplicant-identity=MikroTik
unicast-ciphers=“”
add authentication-types=wpa2-psk eap-methods=“” mode=dynamic-keys name=primary supplicant-identity=“”
wpa2-pre-shared-key=“HIDDEN”
add authentication-types=wpa2-psk eap-methods=“” mode=dynamic-keys name=airbnb supplicant-identity=“”
wpa2-pre-shared-key=“HIDDEN”
/interface wireless
set [ find default-name=wlan1 ] band=2ghz-b/g default-forwarding=no frequency=2447 l2mtu=2290 mode=ap-bridge
security-profile=primary ssid=accesointernetsatelital.com
add default-forwarding=no disabled=no mac-address=02:0C:42:FB:21:FD master-interface=wlan1 name=Airbnb
security-profile=airbnb ssid=airbnb wds-cost-range=0 wds-default-cost=0

[admin@Springfield Mikrotik] /ip neighbor discovery> export

nov/07/2014 21:24:50 by RouterOS 6.21.1

software id = FPK2-WSEZ

[admin@Springfield Mikrotik] /ip pool> export

nov/07/2014 21:25:45 by RouterOS 6.21.1

software id = FPK2-WSEZ

/ip pool
add name=Dhcp1 next-pool=Dhcp1 ranges=192.168.10.60-192.168.10.119

Here is the info, I think other information is not relevant, my firewall and mangle rules are very big.

Thank you my friends…