On Fri, Apr 15, 2016 at 12:31 PM, Karl Fife <[email protected]> wrote: > I'm bringing this up in the off chance that it is a bug. I think it might > be expected behavior but want to bounce it off a few others. > > I have an installation with two fiber uplinks. Each uplink has an IP on the > ISP's single WAN subnet (e.g. one single subnet, not a pair of tunnels). > This is a temporary configuration but in the meantime I observed the > following. > > In this configuration, the gateway monitoring's default settings use a > single gateway monitoring IP address (their DHCP default gateway). What I > observe is that ONE of the two interfaces will have 'unknown/pending' > gateway status. Obviously, the gateway monitoring ICMP messages for BOTH > interfaces are routing via only ONE of the two, leaving other gateway's > status unknown. >
The issue isn't gateway monitoring, it's that you can't have the same subnet on multiple interfaces and can't have multiple WANs with the same gateway IP. There can only one one ARP cache entry for a given IP and it will be associated with only a single interface. It's a toss up as to which will work in that case. It's impossible to communicate with the same IP on two diff NICs. _______________________________________________ pfSense mailing list https://lists.pfsense.org/mailman/listinfo/list Support the project with Gold! https://pfsense.org/gold
