When my phone connects to my home WiFi network, it sends DHCP request in order to get an IP address. It looks like the following:
22:50:53.743535 IP (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 328)
0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from a0:39:f7:5f:c0:45, length 300, xid 0xddd7abec, Flags [none]
Client-Ethernet-Address a0:39:f7:5f:c0:45
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Discover
Client-ID Option 61, length 7: ether a0:39:f7:5f:c0:45
MSZ Option 57, length 2: 1500
Vendor-Class Option 60, length 18: "android-dhcp-7.1.2"
Hostname Option 12, length 9: "localhost"
Parameter-Request Option 55, length 10:
Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
MTU, BR, Lease-Time, RN
RB, Vendor-Option
As you can see, there's Vendor-Class Option 60, length 18: "android-dhcp-7.1.2" which contains the OS version. Is there a way to remove this from the request?