Changing default gateway on rb2011uas-2hnd-in

Hello,
I recently bought a sfp module for my router, so i can directly connect it to my fiber connection.
First i was using a optic to ethernet converter, so i could connect it to an ethernetport on the router.
Now i want to use the sfp module as a default-gateway, but i can’t figure out how to do so.
I got confused at the “set 0” part, do I have to use “set 10” for the sfp module?

I have this config running:

/interface ethernet

set 0 arp=proxy-arp auto-negotiation=yes  \
    disabled=no full-duplex=yes l2mtu=1598  \
    mtu=1500 name=ether1-gateway speed=1Gbps

set 1 arp=enabled auto-negotiation=yes \
    disabled=no full-duplex=yes l2mtu=1598 \
    mtu=1500 name=ether2 speed=1Gbps

/interface vlan
add arp=enabled disabled=no interface=ether1-gateway l2mtu=1594 mtu=1500 \
    name=vlan1.6 use-service-tag=no vlan-id=6

/ppp profile
set 0 change-tcp-mss=yes name=default only-one=default use-compression=\
    default use-encryption=default use-mpls=default use-vj-compression=\
    default
  
/interface pppoe-client
add add-default-route=yes allow=pap,mschap2 \
    dial-on-demand=no disabled=no interface=vlan1.6 keepalive-timeout=20 max-mru=1480 max-mtu=1480 \
    mrru=disabled name=pppoe password=XXXXXXXXX profile=default \
    use-peer-dns=no user=XX-XX-XX-XX-XX-XX@direct-adsl


/routing bgp instance
set default disabled=yes

/interface bridge
add name=bridge-local arp=proxy-arp

/interface bridge port
add bridge=bridge-local interface=ether2
add bridge=bridge-local interface=ether3
add bridge=bridge-local interface=ether4
add bridge=bridge-local interface=ether5
add bridge=bridge-local interface=ether6
add bridge=bridge-local interface=ether7
add bridge=bridge-local interface=wlan1

/interface bridge settings
set use-ip-firewall=no use-ip-firewall-for-pppoe=no use-ip-firewall-for-vlan=\
    no
/interface ethernet switch port
set 0 vlan-header=leave-as-is vlan-mode=disabled
set 1 vlan-header=leave-as-is vlan-mode=disabled
set 2 vlan-header=leave-as-is vlan-mode=disabled
set 3 vlan-header=leave-as-is vlan-mode=disabled
set 4 vlan-header=leave-as-is vlan-mode=disabled
set 5 vlan-header=leave-as-is vlan-mode=disabled
set 6 vlan-header=leave-as-is vlan-mode=disabled
set 7 vlan-header=leave-as-is vlan-mode=disabled
set 8 vlan-header=leave-as-is vlan-mode=disabled
set 9 vlan-header=leave-as-is vlan-mode=disabled
set 10 vlan-header=leave-as-is vlan-mode=disabled
set 11 vlan-header=leave-as-is vlan-mode=disabled
set 12 vlan-header=leave-as-is vlan-mode=disabled

/ip address
add address=192.168.10.250/24 disabled=no interface=bridge-local network=192.168.10.0

/ip dns
set allow-remote-requests=yes cache-max-ttl=1d cache-size=2048KiB \
    max-udp-packet-size=4096 servers=8.8.8.8,8.8.4.4

/ip firewall filter
add action=accept chain=input disabled=no in-interface=pppoe protocol=icmp
add action=accept chain=input connection-state=related disabled=no
add action=accept chain=input connection-state=established disabled=no

add action=reject chain=input in-interface=pppoe protocol=tcp reject-with=icmp-port-unreachable
add action=reject chain=input in-interface=pppoe protocol=udp reject-with=icmp-port-unreachable

/ip firewall nat
add action=masquerade chain=srcnat disabled=no out-interface=pppoe \
    src-address=192.168.0.0/16 to-addresses=0.0.0.0

/ip neighbor discovery
set sfp1 discover=no
set ether1-gateway discover=no
set ether2 discover=yes
set ether3 discover=yes
set ether4 discover=yes
set ether5 discover=yes
set ether6 discover=yes
set ether7 discover=yes
set wlan1 discover=no
set bridge-local discover=yes
set pppoe discover=no
set vlan1.6 discover=no

/ip pool
add name=HomeNetwork ranges=192.168.10.40-192.168.10.99
/ip dhcp-server
add address-pool=HomeNetwork authoritative=yes disabled=no interface=bridge-local \
    lease-time=1h30m name=dhcp-Home
/ip dhcp-server config
set store-leases-disk=15m
/ip dhcp-server network
add address=192.168.10.0/24 dns-server=192.168.10.250 domain=Home.local gateway=\
    192.168.10.250

/ip traffic-flow
set active-flow-timeout=30m cache-entries=4k enabled=no \
    inactive-flow-timeout=15s interfaces=all
/ip upnp
set allow-disable-external-interface=no enabled=yes show-dummy-rule=no
/ip upnp interfaces
add disabled=no interface=bridge-local type=internal
add disabled=no interface=pppoe type=external
/lcd
set backlight-timeout=1m enabled=yes
/system clock
set time-zone-name=Europe/Amsterdam