Dear list, before writeing this mail I really searched in the mailing list and deeply red the HOWTO, but I didn't find a clear and univoque answer to my doubt. What is the meaning of the priomap? And what kind of TOS concerns? My first opinin was the one-to-one correspondence of the priomap and the 16 values of the four TOS bits. I mean priomap 1 2 0 3 0 0 0 0 0 0 0 0 0 0 0 1 implies packet with tos 00000000 and 11111111 in band 1 packet with tos 00000001 in band 2 packet with tos 00000011 in band 3 the others in band 0 BUT IT IS WRONG! (tested by pinging with various tos) My second opinin was that only packet with TOS 00000000, 00000010, 00000100, 00001000 and 00010000 could be used with predictable treatment andt then that only the first, second, third, fifth and nineth value of the priomap are valid (in this way the last column in the table of the howto make sense). BUT IT IS WRONG! (tested by pinging with various tos) Where is the truth? I'm misssing something? Where? Please help me to solve the mistery of priomap.... Luca
Hi All, I have the following topology with four linux routers. A----B-----C | | +..E0(D)E1.+ In this I want to send some traffic from interface E0 of router D to interface E1 of same router via route ABC. How can I do this? Any help on this will be highly appreciable. Thanks, Nitin __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus – Powerful. Affordable. Sign up now. http://mailplus.yahoo.com
On Fri, Nov 22, 2002 at 11:11:04AM -0800, nitin panjwani wrote: > Hi All, > I have the following topology with four linux routers. > > A----B-----C > | | > +..E0(D)E1.+ > > In this I want to send some traffic from interface E0 > of router D to interface E1 of same router via route > ABC. How can I do this? In general you can't. The traffic generated on D, destined for D never reaches the nic card. So, your statement above "from interface E0" is irrelevant. The packets would go down the IP stack to the loopback and come back up again. What are A, B or C? If there is ability to do nat, you can send packets to, eg, A and have A DNAT it to E1 and SNAT it to A. Doing this and having the right routes on A, B and C and of course D, you can do what you're asking. Ramin > Any help on this will be highly appreciable. > > Thanks, > Nitin