This behaviour can be usefull, for example, if you want to assign dial-in (ppp, pppoe, pptp) clients
IP addresses from the same address space as used on the connected LAN.
Example
Consider the following configuration:
The MikroTik Router setup is as follows:
admin@MikroTik] ip arp> /interface ethernet print
Flags: X - disabled, R - running
#
NAME
MTU
MAC-ADDRESS
ARP
0
R eth-LAN
1500
00:50:08:00:00:F5 proxy-arp
[admin@MikroTik] ip arp> /interface print
Flags: X - disabled, D - dynamic, R - running
#
NAME
TYPE
MTU
0
eth-LAN
ether
1500
1
prism1
prism
1500
2 D
pppoe-in25
pppoe-in
3 D
pppoe-in26
pppoe-in
[admin@MikroTik] ip arp> /ip address print
Flags: X - disabled, I - invalid, D - dynamic
#
ADDRESS
NETWORK
BROADCAST
INTERFACE
0
10.0.0.217/24
10.0.0.0
10.0.0.255
eth-LAN
1 D 10.0.0.217/32
10.0.0.230
0.0.0.0
pppoe-in25
2 D 10.0.0.217/32
10.0.0.231
0.0.0.0
pppoe-in26
[admin@MikroTik] ip arp> /ip route print
Flags: X - disabled, I - invalid, D - dynamic, J - rejected,
C - connect, S - static, R - rip, O - ospf, B - bgp
#
DST-ADDRESS
G GATEWAY
DISTANCE INTERFACE
0
S 0.0.0.0/0
r 10.0.0.1
1
eth-LAN
Page 105 of 695
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