On Fri, 22 Jun 2001, Arthur van Leeuwen wrote: > > > > it's posibility to make something similar to Cisco unnumber on Linux ? > > > > E. g. > > > > interface Serial0 > > > > ip unnumbered Ethernet0 > > > > I don't want to assign to interface private IP. > > > > > > If I understand the ip unnumbered command correctly it allows you to share a > > > single IP address on multiple interfaces. This is trivial on Linux: just add > > > the same IP address to each of the interfaces with ip addr add > > > > > > The routing effects I cannot correctly comment on, as I'm not sufficiently > > > versed in IOS to fully grasp the effects of ip unnumbered > > > > No, it's incorrect, unnumberd allow you to connect 2 router without IP > > adresses. > > > > 192.168.0.1/24 [cisco]unnumbered-----unnumberd[cisco] 192.168.2.1/24 > > > > It's special case of point-to-point connection. In linux if I make > > point-to-point connection I have to assign any IP on both endpoint of > > connection. > > What is the difference with > > 192.168.0.1/24 [linux] 192.168.0.1 ------- 192.168.2.1 [linux] 192.168.2.1/24 > > if I may be so bold to ask? Yes, the routing effects may be different, and I > mentioned that might be a problem, but the unnumbered thing looks like a > cisco-specific hack... Difference is in traceroute. Unnumbered is invisible, if I assign IP I see it in traceroute, but I can make hack that make this connection invisible, but it's rfc break ... Yes, it's cisco specific hack. > Doei, Arthur. PSIkappa psi@xxxxxxxxxxx
