This is the scenario..
I have a Public IP segment... 148.235.x.x/28
i have my private IP segment 10.10.1.0/24
One of my public ip is used on my router. (148.235.x.97/28)
I read about proxy arp to permit part on two my public network without
change the config of my machines.
So, this is my linux..
eth0=148.235.x.103/28
eth1=10.10.1.1/24
eth2=148.235.70.103/28
The eth1 and eth2 are connected to the same switch. eth0 is connected
to the router.
So.. i did:
ip route del 148.235.x.x/28 dev eth0
ip route del 148.235.x.x/28 dev eth2
ip route add 148.235.x.97 dev eth0
ip route add 148.235.x.x/28 dev eth2
echo 1 > /proc/sys/net/ipv4/conf/eth0/proxy_arp
echo 2 > /proc/sys/net/ipv4/conf/eth2/proxy_arp
The machines with the public Ips are working good, but i have problems
with my network 10.10.1.0/24. The machines are reporting duplicated
Ips..
I read about i need make filters on ARP request.. so, i use this on my
sysctl.conf
net.ipv4.conf.all.arp_filter=2
net.ipv4.conf.default.arp_filter = 1
net.ipv4.conf.eth0.arp_filter=1
net.ipv4.conf.eth1.arp_filter=1
net.ipv4.conf.eth2.arp_filter=1
net.ipv4.conf.default.log_martians = 1
net.ipv4.conf.all.arp_ignore=1
net.ipv4.conf.eth0.arp_ignore=1
net.ipv4.conf.eth1.arp_ignore=1
net.ipv4.conf.eth2.arp_ignore=1
net.ipv4.conf.default.arp_announce=2
net.ipv4.conf.all.arp_announce=2
net.ipv4.conf.eth0.arp_announce=2
net.ipv4.conf.eth1.arp_announce=2
net.ipv4.conf.eth2.arp_announce=2
I apply the parameters using sysctl -p
and when a machine connect to the network, i saw this on arp tables:
10.10.1.188 ether 00:04:23:CB:00:CA C
eth2
10.10.1.188 ether 00:12:17:98:C2:5F C
eth1
00:04:23:CB:00:CA its the MAC of the eth1 nic.
00:12:17:98:C2:5F its the Real MAC of my client.
But i still having Duplicated IPs.
How can i fix that?
Thanks.
--
Ing. Rogelio C. Sevilla Fernández
Dirección de Desarrollo Telemático / Secretaria de Administración
Tel (312)3162062 / (312)3162000 ext 2360
Gobierno del Estado de Colima.
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"2006, AÑO DEL BICENTENARIO DEL NATALICIO DEL LIC.
BENITO JUAREZ BENEMERITO DE LAS AMERICAS"
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