model vigor2600 annex A firmware version : v2.5_UK - MAIN MODE ONLY (cannot be configured) - DH2 only (cannot be configured) - MD5 hash function only (cannot be configured) - phase 2 key live is per default 3600 sec (cannot be configured) - no nat traversal compliant - no DPD compliantMaybe adjusting the FTG side to that restrictions, you can be lucky. regards,
regards
/ Abel
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