[Kea-users] kea answers to relay using giaddr instead of source address. any way to fix?

[Sergey Klusov]

Hi, i'm using kea-dhcp4 version 1.1.0 from epel repo.
Here is tcpdump:

13:35:31.734452 IP (tos 0x0, ttl 63, id 0, offset 0, flags [DF], proto 
UDP (17), length 335)
     x.x.x.156.67 > x.x.x.90.67: [udp sum ok] BOOTP/DHCP, Request from 
f4:8b:32:a3:79:3f, length 307, hops 1, xid 0x88cd169e, secs 2, Flags 
[none] (0x0000)
           Gateway-IP 100.101.101.1
           Client-Ethernet-Address f4:8b:32:a3:79:3f
           Vendor-rfc1048 Extensions
             Magic Cookie 0x63825363
             DHCP-Message Option 53, length 1: Discover
             Client-ID Option 61, length 7: ether f4:8b:32:a3:79:3f
             MSZ Option 57, length 2: 1500
             Vendor-Class Option 60, length 18: "android-dhcp-6.0.1"
             Hostname Option 12, length 17: "MINOTELTE-MiPhone"
             Parameter-Request Option 55, length 9:
               Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
               MTU, BR, Lease-Time, RN
               RB
13:35:31.736533 IP (tos 0x10, ttl 128, id 0, offset 0, flags [DF], proto 
UDP (17), length 330)
     x.x.x.90.67 > 100.101.101.1.67: [udp sum ok] BOOTP/DHCP, Reply, 
length 302, hops 1, xid 0x88cd169e, Flags [none] (0x0000)
           Your-IP 100.101.101.132
           Gateway-IP 100.101.101.1
           Client-Ethernet-Address f4:8b:32:a3:79:3f
           Vendor-rfc1048 Extensions
             Magic Cookie 0x63825363
             Subnet-Mask Option 1, length 4: 255.255.255.0
             Default-Gateway Option 3, length 4: 100.101.101.1
             Domain-Name-Server Option 6, length 4: x.x.x.10
             Hostname Option 12, length 17: "MINOTELTE-MiPhone"
             Lease-Time Option 51, length 4: 86400
             DHCP-Message Option 53, length 1: Offer
             Server-ID Option 54, length 4: x.x.x.90
             Client-ID Option 61, length 7: ether f4:8b:32:a3:79:3f

Agent's giaddr is not reachable by server, why it keeps sending replies 
to it?
Is there an option to reply to packet's source address?