Well this is a weird one...two replies to the same ping request sent.
Have an RB493, with ROS 5.7 and the firmware is upgraded to the latest version as well.
eth ports 3, 4, & 5 are set with eth2 as their 'master' port - in other words, 2, 3, 4, & 5 are set up as a switch.
Eth2 has two IP blocks. xxx.115.84.130/30 (so it's gateway is xxx.115.84.129) and it has xxx.115.84.134/30 (it's gateway is xxx.115.84.133)
In the routing table...0.0.0.0/0 gateway= xxx.115.84.129, xxx.115.84.133
In the local telco central office, we have a rather large cisco. That is the device the above RB493 is talking to. It has the corresponding gateway IP addresses on virtual interfaces.
On the cisco, I have set ARP to none, reply only, proxy-arp, and enabled.
I used the same settings (different combinations) on the MT RB493.
It does not matter what I ping, or what the above setting combinations are, I will get two replies for each ping sent.
Now I must also tell you here that I previously had a pc based 2.28 (yep - it was very OLD) with the exact (well exact as you can get in going from 2.28 to 5.7) configuration that only received 1 reply with each ping sent. The ONLY difference was that there was a switch (el' cheapo dlink 5 port) in between the two DSL lines and the PC router.
I am in a quandry as to what this may be...I am leaning towards the RB as that is the only thing that has changed from the previous setup.
Any thoughts out there on this rather strange phenomena?
Thanks guys.