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- The roadwarriors <b>carol</b> and <b>dave</b> set up a connection each
- to gateway <b>moon</b> using the <b>MODP Diffie-Hellman Groups 22, 23, and 24</b>
- with <b>Prime Order Subgroups</b>.
- <p/>
- <b>carol</b> proposes the DH groups MODP_2048_224 and MODP_1024_160 whereas
- <b>dave</b> proposes MODP_2048_224 and MODP_2048_256.
- Since <b>moon</b> does not support MODP_2048_224 the roadwarriors fall back to
- MODP_1024_160 and MODP_2048_256, respectively.
- <p/>
- Upon the successful establishment of the IPsec tunnels, <b>leftfirewall=yes</b>
- automatically inserts iptables-based firewall rules that let pass the tunneled traffic.
- In order to test both tunnel and firewall, both <b>carol</b> and <b>dave</b> ping
- the client <b>alice</b> behind the gateway <b>moon</b>.
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