Same router id for different EIGRP AS

[ankugarg]

I have seen that on cisco switches all the AS for eigrp have same router id.Is this behaviour correct.Also want to know if one eigrp AS and OSPF process can share the same router id ?..thanks

[Reza Sharifi]

Yes, usually the router ID is a loopback interface and that is by default is shared for all protocols.  You can manually assign a different router id if you want to.

HTH