On Sat, 16 Aug 2003, Phil Howard wrote: > I'm running Linux/390 (2.4.17) under Hercules (2.17.1) under Linux (2.4.21) > on x86, and noticed that the encapsulation between host and guest systems > for the CTC via TUN interface is different: > > On the host side: > > tun0 Link encap:Point-to-Point Protocol > inet addr:192.168.10.1 P-t-P:192.168.10.2 Mask:255.255.255.255 > UP POINTOPOINT RUNNING MTU:1500 Metric:1 > RX packets:45 errors:0 dropped:0 overruns:0 frame:0 > TX packets:55 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:10 > RX bytes:6067 (5.9 Kb) TX bytes:5780 (5.6 Kb) > > On the guest side (note the P-t-P address, too): > > ctc0 Link encap:Serial Line IP > inet addr:192.168.10.2 P-t-P:192.168.10.2 Mask:255.255.255.252 > UP POINTOPOINT RUNNING NOARP MTU:1500 Metric:1 > RX packets:49 errors:0 dropped:0 overruns:0 frame:0 > TX packets:40 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:100 > RX bytes:5460 (5.3 KiB) TX bytes:5471 (5.3 KiB) > > How is that supposed to work?
With those IP addresses, does it? I IPLed my system to take a look and for once tun0 didn't come up cleanly so I had to configure it cleanly. Now I have different encapsulation _and_ different multicast and different MTU. -- Cheers John. Join the "Linux Support by Small Businesses" list at http://mail.computerdatasafe.com.au/mailman/listinfo/lssb Copyright John Summerfield. Reproduction prohibited.
