Multiple IP addresses...not router specific

[wh7qq]

I just noticed on the Raspberry Pi forums an issue that I had experienced but paid little attention to: That my active Raspberry Pi computers on my network always seemed to get two IP addresses. One of the IPs would always be the static assignment while the other was a DHCP assignment. It had never posed a problem for my small network so I just accepted it as a fluke.

Are there any bright ideas out there as to why, or how to mitigate or eliminate the issue?

I use an RT-n 66 router with Linux boxes but various posters on the RPi forums use other hardware. As many routers use older Linux kernels (generally 2.6.x), perhaps it is a Linux or Linux kernel issue. ???

 

[ColinTaylor]

You say this is already being discussed in the Pi forums so that would the logical place to look for answers. Do you have a link to that discussion.

Are the IP addresses associated with different MAC addresses? Where are you seeing these two addresses?

 

[Greg72]

The PI is a odd beast in that you cannot use normal methods as you can with Linux is setting a Static IP. I always ended up just setting the IP for the MAC on the router for my rPi that I had.

 

[wh7qq]

The issue is being discussed on the RPi forum but so far, without resolution which is why I raised the issue here...seemed like an appropriate place. My initial impressions are that the problem may not be specific to the client OS but occurs with W$/Apple as well. Offhand, I can't say if a different MAC is being used. I will check that out. I have noticed it when VNC is used with wireless but whether it is associated with either is unknown at this time.

@Greg72:The RPi is a bit of an odd beast but setting up the IP in Raspbian is a PITA and the process seems to change frequently. Like you, I have always just set the IP in the router as it is very convenient in Asus/WRT and forks. I had noticed the multiple IPs in the router list but ignored it. My router simply allows either DHCP or static modes and rather than set up a network of static assignments, it is easier to use the DHCP and static together in that way.