-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Arman, : I have divided my network into 2 parts now that is : 193.168.3.127/25 and 192.168.3.128/25. According to this output, below, you have not divided your /24 into two different networks, and it's really not clear exactly what you are asking. Neither of these show up in your routing table: 192.168.3.0/25 (netmask 255.255.255.128) 192.168.3.128/25 (netmask 255.255.255.128) : Destination Gateway Genmask Flags Metric Ref Use : Iface : 192.168.3.0 * 255.255.255.0 U 0 0 0 eth0 : 203.81.213.0 * 255.255.255.0 U 0 0 0 eth2 : 192.168.1.0 * 255.255.255.0 U 0 0 0 eth1 : 169.254.0.0 * 255.255.0.0 U 0 0 0 eth2 : default 203.81.213.1 0.0.0.0 UG 0 0 0 eth2 : I want to route part1 to ISP1 and Part 2 to ISP2. Without further data ("ip rule show", "ip route show table $ALT") we cannot know which interface your ISP2 is reachable through. : I have made changes into rules. But I think my Tables T1,T2 are : not used and default table is in use. How can I command to use : tables T1,T2 instead of default table. route command output is There are a number of resources you might wish to examine first. I would recommend first understanding the RPDB lookup mechanism [0] and then following the steps for multiple uplinks in the (venerable) LARTC documentation [1]. You may find it fruitful to simulate the route lookup on a packet by packet basis by learning how to use the "ip route get" command: # ip route get iif eth4 70.14.115.3 from XX.YY.204.58 70.14.115.3 from XX.YY.204.58 via XX.YY.204.1 dev eth8 src 192.168.4.1 cache <src-direct> mtu 1500 advmss 1460 metric10 64 iif eth4 # ip route get iif eth3 70.14.115.3 from 192.168.3.117 70.14.115.3 from 192.168.3.117 via XX.YY.204.1 dev eth7 src 192.168.3.1 cache <src-direct> mtu 1500 advmss 1460 metric10 64 iif eth3 Good luck, - -Martin [0] http://linux-ip.net/html/routing-selection.html http://linux-ip.net/html/routing-selection.html#routing-selection-adv [1] http://lartc.org/howto/lartc.rpdb.multiple-links.html - -- Martin A. Brown http://linux-ip.net/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) Comment: pgf-0.72 (http://linux-ip.net/sw/pine-gpg-filter/) iD8DBQFG3E3iHEoZD1iZ+YcRApZPAJwNhRk25oxC17Zmgy2sLNtBq7HRoACdGk/P p07vvD2W9yfFK+Ws/wPAjT0= =BAoI -----END PGP SIGNATURE----- _______________________________________________ LARTC mailing list LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc