The config works better now that I have changed my config to do src-nat on interfaces as per the latest wiki config rather on the src-address and also based on what has been posted in ECMP Over 2 ADSL Gateways
I use a RB600 as my "ECMP router" and I used the default route as per the detail below rather than what has been suggested in the post listed above.
/ip route
add check-gateway=ping comment="" disabled=no distance=1 dst-address=0.0.0.0/0 gateway=ADSL1,ADSL2
add comment="" disabled=no distance=1 dst-address=192.168.0.0/24 gateway=192.168.254.2 scope=30 target-scope=10
I then use a second router (RB532) which connects to the ECMP router as indicated in the attached picture. The reason for this is to get away from the problem where traffic that originates from the router itself (such as PPTP client from the ECMP router itself) is not handled correctly and creates all sorts of issues.
This config generally works well except that the tunnels that I create on the RB532 disconnect and re-connect at regular intervals (every 10 minutes or multiples thereof - i.e. 20 minutes).
I also intermittently experienced the following problems:
- With a particular https site (Internet banking) once or twice during a period of a week the site logged me out for no reason, i.e. 99% of the time the site works without issues.
I also experienced a problem twice where emails failed halfway through being sent
Failover works without any problems. Both DSL connections are to the same ISP and even though the one route (via ADSL1) shows as being not active (as shown below), traffic is routed via both ADSL interfaces.
[admin@MikroTik] /ip route> print
Flags: X - disabled, A - active, D - dynamic, C - connect, S - static, r - rip, b - bgp, o - ospf, m - mme,
B - blackhole, U - unreachable, P - prohibit
DST-ADDRESS PREF-SRC GATEWAY-STATE GATEWAY DISTANCE INTERFACE
0 A S 0.0.0.0/0 reachable ADSL1 1 ADSL1
reachable ADSL2 ADSL2
1 A S 192.168.0.0/24 reachable 192.168.254.2 1 local
2 ADC 192.168.254.0/24 192.168.254.1 0 local
3 ADC 196.x.y.1/32 196.x.z.66 0 ADSL2
4 DC 196.x.y.1/32 196.x.z.93 0 ADSL1
Has anybody else experienced something similar with PPTP and ECMP?
