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Hello,
I am trying to run a two node LVS set-up.
My VIP is 174.121.60.28 and my RIP is 174.121.60.50.
I can ping the VIP from the RIP but am unable to ping the VIP from outside.
Ifconfig gives me this:
eth0 Link encap:Ethernet HWaddr 00:26:B9:79:6E:C2
inet addr:174.121.60.50 Bcast:174.121.60.55 Mask:255.255.255.248
inet6 addr: fe80::226:b9ff:fe79:6ec2/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1670618 errors:0 dropped:0 overruns:0 frame:0
TX packets:1521512 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:330044128 (314.7 MiB) TX bytes:353914009 (337.5 MiB)
Interrupt:169 Memory:da000000-da012800
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:1278 errors:0 dropped:0 overruns:0 frame:0
TX packets:1278 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1139484 (1.0 MiB) TX bytes:1139484 (1.0 MiB)
ip addr show gives me this:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:26:b9:79:6e:c2 brd ff:ff:ff:ff:ff:ff
inet 174.121.60.50/29 brd 174.121.60.55 scope global eth0
inet 174.121.60.28/24 brd 127.255.255.255 scope global eth0
inet6 fe80::226:b9ff:fe79:6ec2/64 scope link
valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 1000
link/ether 00:26:b9:79:6e:c3 brd ff:ff:ff:ff:ff:ff
4: sit0: <NOARP> mtu 1480 qdisc noop
link/sit 0.0.0.0 brd 0.0.0.0
Can anyone see what is wrong? As usual the logs are not very verbose!!
Kind regards,
Cyrus
-----Original Message-----
From: lvs-users-bounces@xxxxxxxxxxxxxxxxxxxxxx
[mailto:lvs-users-bounces@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of L.S. Keijser
Sent: 29 March 2010 06:31
To: LinuxVirtualServer.org users mailing list.
Subject: Re: [lvs-users] Two box lvs with UltrMonkey LO problem
On Sun, 2010-03-28 at 14:28 +0100, Cyrus wrote:
> That's what I try and do.
> I edit the /etc/sysconfig/network-scripts/ifcfg-lo:0 file and add the VIP
> (174.121.60.28) as the IP address.
>
> DEVICE=lo:0
> IPADDR=174.121.60.28
> NETMASK=255.255.255.248
> ONBOOT=yes
> NAME=loopback
If you configure the loopback adapter like this. RedHat's network
scripts will always send an arp broadcast first, which is exactly what
you don't want. Instead, put something like this in your /etc/rc.local
file:
# solve the ARP problem
echo 1 > /proc/sys/net/ipv4/conf/lo/arp_ignore
echo 1 > /proc/sys/net/ipv4/conf/eth0/arp_ignore
echo 2 > /proc/sys/net/ipv4/conf/lo/arp_announce
echo 2 > /proc/sys/net/ipv4/conf/eth0/arp_announce
# Bring up loopback interface
ifconfig lo:0 174.121.60.28 broadcast 174.121.60.28 netmask 0xffffffff
up
# Make sure traffic destined for the VIP gets handled by the loopback
adapter
route add -host 174.121.60.28 device lo:0
--
L�on
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