A Linux DHCP server that will listen on an non-broadcast (tap) interface?
- by TomOnTime
Are there any Linux DHCP servers that will listen to what Cisco calls an "unnumbered" interface, or what others might call a "NBMA" (non-broadcast) interface.
I have a Linux system that connects to a number of others using GRE tunnels. The machines on the other end send DHCP requests to this machine, I can see them with tcpdump. However, ISC DHCP 3.0.3 refuses to listen to the interface because it is non-broadcast.
The interface I'd like DHCP to listen to is:
tap2 Link encap:Ethernet HWaddr removed-for-privacy
inet6 addr: removed-for-privacy/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:518 errors:0 dropped:0 overruns:0 frame:0
TX packets:510 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:196242 (191.6 KiB) TX bytes:52425 (51.1 KiB)