Hi,
I would like to setup a simple network detailed in the below schema.
--8<---------------cut here---------------start------------->8---
,===========. eth0 ,-------.
|| internet || <-----------------> | reyiz |
`===========' 10.10.98.100 `-------'
^
eth1 | 192.168.100.100
|
|
|
,-------. eth3 |
| pampa | <----------------------------+
`-------^ 192.168.100.98
reyiz# cat /etc/network/interfaces
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 10.10.98.100
netmask 255.255.255.240
network 10.10.98.96
broadcast 10.10.98.111
gateway 10.10.98.110
dns-nameservers 10.10.10.11 10.10.10.12
dns-search ozun.int
auto eth1
iface eth1 inet static
address 192.168.100.100
netmask 255.255.255.0
gateway 192.168.100.98
reyiz# ifconfig
eth0 Link encap:Ethernet HWaddr 1c:6f:65:aa:78:8f
inet addr:10.10.98.100 Bcast:10.10.98.111 Mask:255.255.255.240
inet6 addr: fe80::1e6f:65ff:feaa:788f/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:143 errors:0 dropped:0 overruns:0 frame:0
TX packets:122 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:15294 (14.9 KiB) TX bytes:13676 (13.3 KiB)
Interrupt:28 Base address:0xc000
eth1 Link encap:Ethernet HWaddr 54:e6:fc:80:ca:a9
inet addr:192.168.100.100 Bcast:192.168.100.255 Mask:255.255.255.0
inet6 addr: fe80::56e6:fcff:fe80:caa9/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:4 errors:0 dropped:0 overruns:0 frame:0
TX packets:51 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:240 (240.0 B) TX bytes:3942 (3.8 KiB)
Interrupt:19 Base address:0x4000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:5 errors:0 dropped:0 overruns:0 frame:0
TX packets:5 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:336 (336.0 B) TX bytes:336 (336.0 B)
reyiz# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.10.98.96 0.0.0.0 255.255.255.240 U 0 0 0 eth0
192.168.100.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
0.0.0.0 192.168.100.98 0.0.0.0 UG 0 0 0 eth1
0.0.0.0 10.10.98.110 0.0.0.0 UG 0 0 0 eth0
--8<---------------cut here---------------end--------------->8---
The problem here is that there exists two entries in the routing table
for 0.0.0.0 network pointing to both eth0 and eth1. But I just want to
have 192.168.100.0 network requests to be handled by eth1, the rest
should be redirected to eth0. That is, the desired routing table is as
follows.
--8<---------------cut here---------------start------------->8---
Destination Gateway Genmask Flags Metric Ref Use Iface
10.10.98.96 0.0.0.0 255.255.255.240 U 0 0 0 eth0
192.168.100.0 192.168.100.98 255.255.255.0 U 0 0 0 eth1
0.0.0.0 10.10.98.110 0.0.0.0 UG 0 0 0 eth0
--8<---------------cut here---------------end--------------->8---
How should I configure /etc/network/interfaces to have such a routing
scheme?
Moreover, I tried to create such a routing scheme manually. First, I
removed the eth1 entries:
--8<---------------cut here---------------start------------->8---
reyiz# route del -net 192.168.100.0 netmask 255.255.255.0 dev eth1
reyiz# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.10.98.96 0.0.0.0 255.255.255.240 U 0 0 0 eth0
0.0.0.0 10.10.98.110 0.0.0.0 UG 0 0 0 eth0
--8<---------------cut here---------------end--------------->8---
So far, so good. But I couldn't add a new routing entry for eth1. That
is,
--8<---------------cut here---------------start------------->8---
reyiz# route add -net 192.168.100.0 netmask 255.255.255.0 gw 192.168.100.98
SIOCADDRT: No such process
--8<---------------cut here---------------end--------------->8---
I will be really appreciated for any help.
Best.
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