EoIP

Quick Setup Guide

To make an EoIP tunnel between 2 routers which have IP addresses 10.5.8.1 and 10.1.0.1:

1.

On router with IP address 10.5.8.1, add an EoIP interface and set its MAC address:

/interface eoip add remote-address=10.1.0.1 tunnel-id=1 mac-address=00-00-5E-80-00-01 \
\... disabled=no

2.

On router with IP address 10.1.0.1, add an EoIP interface and set its MAC address::

/interface eoip add remote-address=10.5.8.1 tunnel-id=1 mac-address=00-00-5E-80-00-02 \
\... disabled=no

Now you can add IP addresses to the created EoIP interfaces from the same subnet.

EoIP Application Example

To make a secure Ethernet bridge between two routers you should:

1.

Create a PPTP tunnel between them. Our_GW will be the pptp server:

[admin@Our_GW] interface pptp-server> /ppp secret add name=joe service=pptp \
\... password=top_s3 local-address=10.0.0.1 remote-address=10.0.0.2
[admin@Our_GW] interface pptp-server> add name=from_remote user=joe
[admin@Our_GW] interface pptp-server> server set enable=yes
[admin@Our_GW] interface pptp-server> print
Flags: X - disabled, D - dynamic, R - running
# NAME USER MTU CLIENT-AD... UPTIME ENCODING
0 from_remote joe
[admin@Our_GW] interface pptp-server>

The Remote router will be the pptp client:

[admin@Remote] interface pptp-client> add name=pptp user=joe \
\... connect-to=192.168.1.1 password=top_s3 mtu=1500 mru=1500
[admin@Remote] interface pptp-client> enable pptp
[admin@Remote] interface pptp-client> print
Flags: X - disabled, R - running
0 R name="pptp" mtu=1500 mru=1500 connect-to=192.168.1.1 user="joe"
password="top_s2" profile=default add-default-route=no

[admin@Remote] interface pptp-client> monitor pptp
status: "connected"
uptime: 39m46s
encoding: "none"

[admin@Remote] interface pptp-client>

See the PPTP Interface Manual for more details on setting up encrypted channels.
2.

Configure the EoIP tunnel by adding the eoip tunnel interfaces at both routers. Use the ip addresses of the pptp tunnel interfaces when specifying the argument values for the EoIP tunnel:

[admin@Our_GW] interface eoip> add name="eoip-remote" tunnel-id=0 \
\... remote-address=10.0.0.2
[admin@Our_GW] interface eoip> enable eoip-remote
[admin@Our_GW] interface eoip> print
Flags: X - disabled, R - running
0 name=eoip-remote mtu=1500 arp=enabled remote-address=10.0.0.2 tunnel-id=0
[admin@Our_GW] interface eoip>

[admin@Remote] interface eoip> add name="eoip" tunnel-id=0 \
\... remote-address=10.0.0.1
[admin@Remote] interface eoip> enable eoip-main
[admin@Remote] interface eoip> print
Flags: X - disabled, R - running
0 name=eoip mtu=1500 arp=enabled remote-address=10.0.0.1 tunnel-id=0

[Remote] interface eoip>

3.

Enable bridging between the EoIP and Ethernet interfaces on both routers.

On the Our_GW:

[admin@Our_GW] interface bridge> add
[admin@Our_GW] interface bridge> print
Flags: X - disabled, R - running
0 R name="bridge1" mtu=1500 arp=enabled mac-address=00:00:00:00:00:00
protocol-mode=none priority=0x8000 auto-mac=yes
admin-mac=00:00:00:00:00:00 max-message-age=20s forward-delay=15s
transmit-hold-count=6 ageing-time=5m
[admin@Our_GW] interface bridge> port add bridge=bridge1 interface=eoip-remote
[admin@Our_GW] interface bridge> port add bridge=bridge1 interface=office-eth
[admin@Our_GW] interface bridge> port print
Flags: X - disabled, I - inactive, D - dynamic
# INTERFACE BRIDGE PRIORITY PATH-COST
0 eoip-remote bridge1 128 10
1 office-eth bridge1 128 10
[admin@Our_GW] interface bridge>

And the same for the Remote:

[admin@Remote] interface bridge> add
[admin@Remote] interface bridge> print
Flags: X - disabled, R - running
0 R name="bridge1" mtu=1500 arp=enabled mac-address=00:00:00:00:00:00
protocol-mode=none priority=0x8000 auto-mac=yes
admin-mac=00:00:00:00:00:00 max-message-age=20s forward-delay=15s
transmit-hold-count=6 ageing-time=5m
[admin@Remote] interface bridge> port add bridge=bridge1 interface=ether
[admin@Remote] interface bridge> port add bridge=bridge1 interface=eoip-main
[admin@Remote] interface bridge> port print
Flags: X - disabled, I - inactive, D - dynamic
# INTERFACE BRIDGE PRIORITY PATH-COST
0 ether bridge1 128 10
1 eoip-main bridge1 128 10
[admin@Remote] interface bridge>

4. Addresses from the same network can be used both in the Office LAN and in the Remote LAN.

source: http://www.mikrotik.com/testdocs/ros/3.0/vpn/eoip.php