On Wed, May 25, 2005 at 01:32:12AM +0200, Gilles wrote: > > > > > > > > 3. How to set the source for a default route? > > > > Using iproute2 you can use: > > > > ip rule add from ${MYNET}/${SVRPFX} table ${VLAN} > > > > > > Yes, as is explained in > http://archives.linux-vserver.org/200311/0470.html > > [I'll still have to read the docs in order to understand the "rule"s.] > > > > > > > >From the "ip" docs, one of the error (see below: "RTNETLINK answers: > > > >Invalid > > > argument") comes from using the "rule" command, and seems related to a > > > missing > > > kernel feature (CONFIG_IP_MULTIPLE_TABLES). But I can't find it in > > > ".config"; > > > has it changed name, or is it covered by another config option? > > >From 2.6.11*: > > CONFIG_IP_MULTIPLE_TABLES=y > > > > Symbol: IP_MULTIPLE_TABLES [=y] > > ??? Prompt: IP: policy routing > > ??? Defined at net/ipv4/Kconfig:56 > > ??? Depends on: NET && IP_ADVANCED_ROUTER > > ??? Location: > > ??? -> Device Drivers > > ??? -> Networking support > > ??? -> Networking support (NET [=y]) > > ??? -> Networking options > > ??? -> TCP/IP networking (INET [=y]) > > ??? -> IP: advanced router (IP_ADVANCED_ROUTER > > [=y]) > > > > I was missing that one, as Herbert had just told me. > > > > > > > > > > > First I removed the "network" and "gateway" entries in the > > > > > "interfaces" file. > > > > > Then I put a "routing.sh" script in > > > > > "/etc/vservers/phony/scripts/pre-start.d" > > > > > containing the following lines: > > > > > > > > > > ip route add 192.168.83.0/24 dev eth0.2 > > > > > ip route add default via 192.168.83.2 dev eth0.2 > > > > > ip rule add from 192.168.83.0/24 > > > > First of all, I have had issues when doing routing changes in the > > > > pre-start fase, > > > > so I made a habbit of doing those changes in the post start fase and > > > > that solved > > > > a lot of my problems. > > > > > > It seems more coherent to set it in "pre-start" (if possible): probably > better not > to have a running vserver without a sensible routing (?). > > Now, with a new kernel (advanced router with multiple tables...): > > Inside Vs1: > # route -n > Kernel IP routing table > Destination Gateway Genmask Flags Metric Ref Use Iface > 192.168.83.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0.2 > 192.168.79.0 0.0.0.0 255.255.255.0 U 0 0 0 * > 192.168.107.0 0.0.0.0 255.255.255.0 U 0 0 0 * > 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 eth0.2 > 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 * > 0.0.0.0 0.0.0.0 0.0.0.0 UG 0 0 0 * > > Inside Vs2: > # route -n > Kernel IP routing table > Destination Gateway Genmask Flags Metric Ref Use Iface > 192.168.83.0 0.0.0.0 255.255.255.0 U 0 0 0 * > 192.168.79.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0.3 > 192.168.107.0 0.0.0.0 255.255.255.0 U 0 0 0 * > 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 * > 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 eth0.3 > 0.0.0.0 0.0.0.0 0.0.0.0 UG 0 0 0 * > > And both have access to the Internet. > > [Excerpt of] "/etc/network/interfaces" on Host1: > ----- > # VLAN (Private) > auto eth0.2 > iface eth0.2 inet static > address 192.168.83.1 > netmask 255.255.255.0 > mtu 1496 > > # VLAN (DMZ) > auto eth0.3 > iface eth0.3 inet static > address 192.168.79.1 > netmask 255.255.255.0 > mtu 1496 > ----- > > And similarly on Host2 (except for the addresses, to be replaced by > "192.168.83.2" > and "192.168.79.2", respectively). > [The mtu setting seems important (as noted on the VLAN docs) here: All other > things > equal, I had some strange "Temporary name resolution failure" and other ssh > hangs, > which disappeared after lowering the mtu.] > > > The routing is set up in "/etc/vserver/<name>/scripts/pre-start.d/". > For "eth0.2", I have a file called "priv_routing.sh" with: > ----- > ip route add 192.168.83.0/24 dev eth0.2 table 102 > ip route add default via 192.168.83.2 dev eth0.2 table 102 > ip rule add from 192.168.83.0/24 table 102 > ----- > > And for "eth0.3", a file called "dmz_routing": > ----- > ip route add 192.168.79.0/24 dev eth0.3 table 103 > ip route add default via 192.168.79.2 dev eth0.3 table 103 > ip rule add from 192.168.79.0/24 table 103 > ----- > > > Yet... this error remains, at vserver startup: > ERROR: trying to add VLAN #2 to IF -:eth0:- error: Invalid argument > > What about it?
well, we don't know your vserver config yet, but I'd guess it's just a little wrong (i.e. it states to 'create' the alias/ip for that interface which already exists) but without config, that's hard to tell ... best, Herbert > > > Best regards, > Gilles > _______________________________________________ > Vserver mailing list > Vserver@list.linux-vserver.org > http://list.linux-vserver.org/mailman/listinfo/vserver _______________________________________________ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver