SD WAN Fail over testing need to restart ping command (Mac)

Forum|Forum|5 years ago
June 15, 2021
6 replies
5297 views

Hi

I am following this page for SD WAN setup for link failover over: https://docs.fortinet.com/document/fortigate/6.0.0/cookbook/990932/redundant-internet-with-sd-wan

I managed to get it some how working, however, it is a very strange behaviour

1. ping 8.8.8.8 on my Mac, which is connected to Fortigate via physical wire

2. remove WAN 1

3. the ping command in (1) report timeout, for more than 20 sec (which the default SLA check is 5 failed attempts for 1s interval)

4. I stopped the ping command, and restart ping again, now ping succeed.

So, every-time in order to fail over, I need to kill the ping session and restart,

are there any reason for this?

WAN

lobstercreed

New Member

Yeah, if NAT is involved, existing sessions do not fail over. I was just reading that somewhere this morning.

Toshi_Esumi

SuperUser

Do you have below configured?

config system global

set snat-route-change enable

end

jacky0394Author

New Member

toshiesumi wrote:
Do you have below configured?
config system global
set snat-route-change enable
end

Yes, still the same after enable

64 bytes from 8.8.8.8: icmp_seq=23 ttl=114 time=61.837 ms 64 bytes from 8.8.8.8: icmp_seq=24 ttl=114 time=51.808 ms 64 bytes from 8.8.8.8: icmp_seq=25 ttl=114 time=25.729 ms Request timeout for icmp_seq 26 Request timeout for icmp_seq 27 Request timeout for icmp_seq 28 Request timeout for icmp_seq 29 Request timeout for icmp_seq 30 Request timeout for icmp_seq 31 Request timeout for icmp_seq 32 Request timeout for icmp_seq 33 Request timeout for icmp_seq 34 Request timeout for icmp_seq 35 Request timeout for icmp_seq 36 Request timeout for icmp_seq 37 Request timeout for icmp_seq 38 Request timeout for icmp_seq 39 Request timeout for icmp_seq 40 Request timeout for icmp_seq 41 Request timeout for icmp_seq 42 Request timeout for icmp_seq 43 Request timeout for icmp_seq 44 Request timeout for icmp_seq 45 Request timeout for icmp_seq 46 Request timeout for icmp_seq 47 Request timeout for icmp_seq 48 Request timeout for icmp_seq 49 Request timeout for icmp_seq 50 Request timeout for icmp_seq 51 Request timeout for icmp_seq 52 ^C (Killed) --- 8.8.8.8 ping statistics --- 54 packets transmitted, 25 packets received, 53.7% packet loss round-trip min/avg/max/stddev = 3.412/33.286/73.416/20.695 ms MacBook-Pro:~ jacky$ ping 8.8.8.8 PING 8.8.8.8 (8.8.8.8): 56 data bytes 64 bytes from 8.8.8.8: icmp_seq=0 ttl=116 time=18.188 ms 64 bytes from 8.8.8.8: icmp_seq=1 ttl=116 time=18.335 ms

Sign up

Login with SSO

Login to the community

Login with SSO