[Openswan Users] Can't figure out routing with netkey

Ernest Mueller Ernest.Mueller at ni.com
Wed May 26 14:57:05 EDT 2010


Hey all, noob question.  I got a netkey tunnel going from an amazon EC2
instance back to my Cisco at home.  But I can't get traffic to go that way.
All I see trying to read about netkey is that it "magically does that" so
I'm not quite sure where to go from here.

Tunnel's running in openswan 2.6.25 between a Fedora 12 instance with an
elastic IP and a Cisco router that's also NATted.   On the left (Amazon), I
have a 10. network. Left hand box is privately 10.254.110.A, publically
184.73.168.B. Right hand box is publically 130.164.26.C, privately
130.164.0.D.

> service ipsec status
IPsec running  - pluto pid: 22891
pluto pid 22891
1 tunnels up
some eroutes exist

Sadly, ipsec eroute just tells me "NETKEY does not support eroute table."
Whenever I try to ping/traceroute to 130.164.anything it goes out over the
internet instead of over my tunnel.


And my .conf is:
conn ni
        type=           tunnel
        authby=         secret
        left=           10.254.110.A
        leftid=         184.73.168.B
        leftnexthop=    %defaultroute
        leftsubnet=     10.254.0.0/32
        right=          130.164.26.C
        rightid=        130.164.0.D
        rightnexthop=   %defaultroute
        rightsubnet=    130.164.0.0/18
        keyexchange=    ike
        pfs=            no
        auto=           start
        keyingtries=    3
        disablearrivalcheck=no
        ikelifetime=    240m
        auth=           esp
        compress=       no
        keylife=        60m
        forceencaps=    yes
        esp=            3des-md5


ifconfig tells me I just haev eth0 and lo (expected for netkey) and my
routing table is:
10.254.110.0/23 dev eth0  proto kernel  scope link  src 10.254.110.178
169.254.0.0/16 dev eth0  scope link  metric 1002
default via 10.254.110.1 dev eth0

Any hints on what I need to do to get traffic going over my netkey?

Thanks,
Ernest
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