Hello

It looks like my 951 router has stability issues with ether1 similar to that
http://forum.mikrotik.com/viewtopic.php?t=93908

so I would like to try ether2 as a gateway - how to configure that? my skills are not very high in such things
Th router is working as DCHP client and server

So ether1 was the client and im guessing the rest of the ports (probably wireless too) were bridged and had a dhcp server on the bridge?

edit: btw i've had 951s where ether1 stopped working temporarily (about 3) and 1 permanently.

yes, but not sure about whether there is a bridge or not - where can I check that? I suppose it's in the bridge mode but help me please to ensure that.

It is possible to see the board default configuration with command:
/system default-configuration print

You can do little changes in this script to change WAN and LAN ports, after modifying the script do:

1. remove any configuration you have:
/system reset-configuration skip-backup=yes no-defaults=yes

2. Connect to the board using ether3-ether5

3. Paste modified script to the terminal


Here is example for your board:




:global ssid;
:global action "apply"
:log info "act=$action";

:if ($action = "apply") do={
# wait for interfaces
:local count 0;
:while ([/interface ethernet find] = "") do={
:if ($count = 30) do={
:log warning "DefConf: Unable to find ethernet interfaces";
/quit;
}
:delay 1s; :set count ($count +1);
};

:local count 0;
:while ([/interface wireless find name=wlan1] = "") do={
:set count ($count +1);
:if ($count = 30) do={
:log warning "DefConf: Unable to find wireless interface";
/ip address add address=192.168.88.1/24 interface=ether3;
/quit
}
:delay 1s;
};
/interface wireless set wlan1 mode=ap-bridge band=2ghz-b/g/n tx-chains=0 rx-chains=0 \
disabled=no wireless-protocol=802.11 distance=indoors
:local wlanMac [/interface wireless get wlan1 mac-address];
:set ssid "MikroTik-$[:pick $wlanMac 9 11]$[:pick $wlanMac 12 14]$[:pick $wlanMac 15 17]"
/interface wireless set wlan1 ssid=$ssid
/interface wireless set wlan1 frequency=auto
/interface wireless set wlan1 channel-width=20/40mhz-Ce ;
/ip dhcp-client add interface=ether2 disabled=no comment="default configuration";
/interface ethernet {
set ether1 name=ether1-slave-local;
set ether3 name=ether3-master-local;
set ether4 name=ether4-slave-local;
set ether5 name=ether5-slave-local;
set ether1-slave-local master-port=ether3-master-local;
set ether4-slave-local master-port=ether3-master-local;
set ether5-slave-local master-port=ether3-master-local;
}

/interface bridge
add name=bridge-local disabled=no auto-mac=yes protocol-mode=rstp;
:local bMACIsSet 0;
:foreach k in=[/interface find] do={
:local tmpPortName [/interface get $k name];
:if (!($tmpPortName~"bridge" || $tmpPortName~"ether2"|| $tmpPortName~"slave")) do={
:if ($bMACIsSet = 0) do={
:if ([/interface get $k type] = "ether") do={
/interface bridge set "bridge-local" auto-mac=no admin-mac=[/interface ethernet get $tmpPortName mac-address];
:set bMACIsSet 1;
}
}
/interface bridge port
add bridge=bridge-local interface=$tmpPortName;
}
}
/ip address add address=192.168.88.1/24 interface=bridge-local comment="default configuration";
/ip pool add name="default-dhcp" ranges=192.168.88.10-192.168.88.254;
/ip dhcp-server
add name=default address-pool="default-dhcp" interface=bridge-local lease-time=10m disabled=no;
/ip dhcp-server network
add address=192.168.88.0/24 gateway=192.168.88.1 comment="default configuration";
/ip dns {
set allow-remote-requests=yes
static add name=router address=192.168.88.1
}

/ip firewall nat add chain=srcnat out-interface=ether2 action=masquerade comment="default configuration"
/ip firewall {
filter add chain=input action=accept protocol=icmp comment="default configuration"
filter add chain=input action=accept connection-state=established,related comment="default configuration"
filter add chain=input action=drop in-interface=ether2 comment="default configuration"
filter add chain=forward action=fasttrack-connection connection-state=established,related comment="default configuration"
filter add chain=forward action=accept connection-state=established,related comment="default configuration"
filter add chain=forward action=drop connection-state=invalid comment="default configuration"
filter add chain=forward action=drop connection-state=new connection-nat-state=!dstnat in-interface=ether2 comment="default configuration"
}
/tool mac-server disable [find];
/tool mac-server mac-winbox disable [find];
:foreach k in=[/interface find] do={
:local tmpName [/interface get $k name];
:if (!($tmpName~"ether2")) do={
/tool mac-server add interface=$tmpName disabled=no;
/tool mac-server mac-winbox add interface=$tmpName disabled=no;
}
}
/ip neighbor discovery set [find name="ether2"] discover=no
}
}