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piacas
New Member
February 11, 2016
Solved

L2L tunnel with NAT

  • February 11, 2016
  • 2 replies
  • 2781 views

I have a need to NAT outbound traffic to a specific Range if the traffic needs to go across a L2L tunnel. Remote customer gave us a range, so traffic going to them is 'seen' as from that range. 

I have the L2L tunnel up, how do I make the fortigate nat the traffic?

 

 

Thx

    Best answer by ede_pfau

    Define an 'IP pool' with the NAT range and in the policy 'lan' -> 'tunnel', enable NAT. Specify 'from pool' and select the pool. Source addresses will be NATted then.

    If the pool is large enough (i.e. /24) you'll get a 1:1 mapping. If the pool is smaller, addresses will be reused.

    2 replies

    ede_pfau
    SuperUser
    ede_pfauAnswer
    SuperUser
    February 11, 2016

    Define an 'IP pool' with the NAT range and in the policy 'lan' -> 'tunnel', enable NAT. Specify 'from pool' and select the pool. Source addresses will be NATted then.

    If the pool is large enough (i.e. /24) you'll get a 1:1 mapping. If the pool is smaller, addresses will be reused.

    piacas
    piacasAuthor
    New Member
    February 11, 2016

    worked like a charm....thanks.

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