[Openswan Users] Two or more interfaces found, checking IP forwarding [FAILED]

[Patrick Naubert]

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From: "Mikael Hagstrom" <mikael at hagstroem.net>
Subject: Two or more interfaces found, checking IP forwarding [FAILED]
Date: 10 July, 2013 3:02:47 PM EDT
To: users at lists.openswan.org


Hi,

I'm trying to configure Openswan on Ubuntu 13.04. I get "Two or more interfaces found, checking IP forwarding            [FAILED]" When I run "ipsec verify". I have tried adding 

net.ipv4.conf.*.send_redirects=0
net.ipv4.conf.*.accept_redirects=0

for all my network interfaces and set net.ipv4.ip_forward = 1 but I still get the error message. I'm don't know what I'm doing wrong and any help would be very welcome.

Regards,

Mikael

--------ls /proc/sys/net/ipv4/conf/------
all  default  eth0  eth1  lo  wlan0
-----------------------------------------

-----ipsec verify------
Checking your system to see if IPsec got installed and started correctly:
Version check and ipsec on-path                                 [OK]
Linux Openswan U2.6.38/K3.8.0-26-generic (netkey)
Checking for IPsec support in kernel                            [OK]
 SAref kernel support                                           [N/A]
 NETKEY:  Testing XFRM related proc values                      [OK]
    [OK]
    [OK]
Checking that pluto is running                                  [OK]
 Pluto listening for IKE on udp 500                             [OK]
 Pluto listening for NAT-T on udp 4500                          [OK]
Two or more interfaces found, checking IP forwarding            [FAILED]
Checking NAT and MASQUERADEing                                  [OK]
Checking for 'ip' command                                       [OK]
Checking /bin/sh is not /bin/dash                               [WARNING]
Checking for 'iptables' command                                 [OK]
Opportunistic Encryption Support                                [DISABLED]
--------------------------------


-----/etc/sysctl.conf-----

# IPSec Verify Compliant
net.ipv4.conf.default.send_redirects=0
net.ipv4.conf.all.send_redirects=0
net.ipv4.conf.eth0.send_redirects=0
net.ipv4.conf.eth1.send_redirects=0
net.ipv4.conf.lo.send_redirects=0
net.ipv4.conf.wlan0.send_redirects=0
net.ipv4.conf.default.accept_redirects=0
net.ipv4.conf.all.accept_redirects=0
net.ipv4.conf.eth0.accept_redirects=0
net.ipv4.conf.eth1.accept_redirects=0
net.ipv4.conf.lo.accept_redirects=0
net.ipv4.conf.wlan0.accept_redirects=0

net.ipv4.ip_forward = 1

------------------------------------

------ifconfig-------------
eth0      Link encap:Ethernet  HWaddr 00:16:cb:ae:21:d5  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:16 

eth1      Link encap:Ethernet  HWaddr 02:26:b0:a7:9a:84  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

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:65536  Metric:1
          RX packets:530 errors:0 dropped:0 overruns:0 frame:0
          TX packets:530 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:47614 (47.6 KB)  TX bytes:47614 (47.6 KB)

wlan0     Link encap:Ethernet  HWaddr 00:1c:b3:b2:8d:43  
          inet addr:10.0.1.8  Bcast:10.0.1.255  Mask:255.255.255.0
          inet6 addr: fe80::21c:b3ff:feb2:8d43/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:2927 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3084 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1438598 (1.4 MB)  TX bytes:497589 (497.5 KB)
------------------------------------------



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