Having strange issue with IPSEC tunnel

[Vishalv16]

I have created a IPasec tunnel between 2 FGT Ipsec tunnel is properly configured  have phase 1 192.168.2.0/24 phase 2 has 10.10.5.0/24 & 10.10.6.0/24 have same policy for both 10.10.5.0/24 & 10.10.6.0/24 range. now issue is from few system 192.168.2.x range am not getting connectivity to 10.10.5.0/24 range but 10.10.6.0/24 are getting connected. I have monitor the log the traffic is reaching to FGT local LAN port for that particular system but no traffic on 2nd fortigateon log , for 10.10.6.0/24 i can see log on both fortigate that traffic is moving. this very strange issue  Update: now with testing i found that even number IP are able to access 10.10.5.0/24 network (i.e .32 &.172) but ip address end with odd number are not ( I.e. .65 & .169) but from that able to access 10.10.6.0/24 network thanks in adavance Vishal

[emnoc]

Network topology please but what is the local/remote subnets between sites 1 & 2 

e.g 

site1 

local=10.10.5.0/24

remote=10.10.6.0/24

and 

site2

remote=10.10.5.0/24

local=10.10.6.0/24

?????s

What is "192.168.2.0/24" in relationship to your design?

Again a bunch of  ?????s . A simple network drawing of the encryption domain would be helpful. Also ensure routing is correct in the design.

Ken Felix

[Vishalv16]

Hi Ken Felix, site1  local=10.10.5.0/24 remote=192.168.2.0/24 local=10.10.6.0/24 remote=192.168.2.0/24 and    site2 remote=10.10.5.0/24 local=192.168.2.0/24 remote=10.10.6.0/24 local=192.168.2.0/24 now the issue is i can access 10.10.6.0/24 from any ip of 192.168.2.0/24 but 10.10.5.0/24 can be accessible only for even number ip like .2 & .32 from odd number IP address like 192.168.2.7 , 33 am not able to access 10.10.5.0/network thanks    

[Vishalv16]

issue resolved. the issue was with static route on fortigate for 10.10.5.0/24 network there was 2 IP-sec Tunnel so there was 2 static route & i had AD value for both 1 later when i changed Ad value of Secondary tunnel to 10 then it was working fine.