300 lines
9.4 KiB
Plaintext
300 lines
9.4 KiB
Plaintext
charon {}
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Options for the charon IKE daemon.
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Options for the charon IKE daemon.
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**Note**: Many of the options in this section also apply to **charon-cmd**
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and other **charon** derivatives. Just use their respective name (e.g.
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**charon-cmd** instead of **charon**). For many options defaults can be
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defined in the **libstrongswan** section.
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charon.accept_unencrypted_mainmode_messages = no
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Accept unencrypted ID and HASH payloads in IKEv1 Main Mode.
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Accept unencrypted ID and HASH payloads in IKEv1 Main Mode.
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Some implementations send the third Main Mode message unencrypted, probably
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to find the PSKs for the specified ID for authentication. This is very
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similar to Aggressive Mode, and has the same security implications: A
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passive attacker can sniff the negotiated Identity, and start brute forcing
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the PSK using the HASH payload.
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It is recommended to keep this option to no, unless you know exactly
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what the implications are and require compatibility to such devices (for
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example, some SonicWall boxes).
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charon.block_threshold = 5
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Maximum number of half-open IKE_SAs for a single peer IP.
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charon.cert_cache = yes
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Whether relations in validated certificate chains should be cached in
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memory.
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charon.cisco_unity = no
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Send Cisco Unity vendor ID payload (IKEv1 only).
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charon.close_ike_on_child_failure = no
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Close the IKE_SA if setup of the CHILD_SA along with IKE_AUTH failed.
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charon.cookie_threshold = 10
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Number of half-open IKE_SAs that activate the cookie mechanism.
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charon.crypto_test.bench = no
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Benchmark crypto algorithms and order them by efficiency.
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charon.crypto_test.bench_size = 1024
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Buffer size used for crypto benchmark.
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charon.crypto_test.bench_time = 50
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Number of iterations to test each algorithm.
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charon.crypto_test.on_add = no
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Test crypto algorithms during registration (requires test vectors provided
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by the _test-vectors_ plugin).
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charon.crypto_test.on_create = no
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Test crypto algorithms on each crypto primitive instantiation.
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charon.crypto_test.required = no
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Strictly require at least one test vector to enable an algorithm.
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charon.crypto_test.rng_true = no
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Whether to test RNG with TRUE quality; requires a lot of entropy.
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charon.dh_exponent_ansi_x9_42 = yes
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Use ANSI X9.42 DH exponent size or optimum size matched to cryptographic
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strength.
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charon.dns1
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DNS server assigned to peer via configuration payload (CP).
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charon.dns2
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DNS server assigned to peer via configuration payload (CP).
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charon.dos_protection = yes
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Enable Denial of Service protection using cookies and aggressiveness checks.
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charon.ecp_x_coordinate_only = yes
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Compliance with the errata for RFC 4753.
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charon.flush_auth_cfg = no
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Free objects during authentication (might conflict with plugins).
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If enabled objects used during authentication (certificates, identities
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etc.) are released to free memory once an IKE_SA is established. Enabling
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this might conflict with plugins that later need access to e.g. the used
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certificates.
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charon.fragment_size = 512
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Maximum size (in bytes) of a sent fragment when using the proprietary IKEv1
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fragmentation extension.
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charon.group
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Name of the group the daemon changes to after startup.
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charon.half_open_timeout = 30
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Timeout in seconds for connecting IKE_SAs (also see IKE_SA_INIT DROPPING).
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charon.hash_and_url = no
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Enable hash and URL support.
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charon.host_resolver.max_threads = 3
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Maximum number of concurrent resolver threads (they are terminated if
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unused).
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charon.host_resolver.min_threads = 0
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Minimum number of resolver threads to keep around.
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charon.i_dont_care_about_security_and_use_aggressive_mode_psk = no
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Allow IKEv1 Aggressive Mode with pre-shared keys as responder.
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If enabled responders are allowed to use IKEv1 Aggressive Mode with
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pre-shared keys, which is discouraged due to security concerns (offline
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attacks on the openly transmitted hash of the PSK).
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charon.ignore_routing_tables
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A space-separated list of routing tables to be excluded from route lookups.
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charon.ikesa_limit = 0
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Maximum number of IKE_SAs that can be established at the same time before
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new connection attempts are blocked.
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charon.ikesa_table_segments = 1
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Number of exclusively locked segments in the hash table.
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charon.ikesa_table_size = 1
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Size of the IKE_SA hash table.
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charon.inactivity_close_ike = no
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Whether to close IKE_SA if the only CHILD_SA closed due to inactivity.
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charon.init_limit_half_open = 0
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Limit new connections based on the current number of half open IKE_SAs, see
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IKE_SA_INIT DROPPING in **strongswan.conf**(5).
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charon.init_limit_job_load = 0
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Limit new connections based on the number of queued jobs.
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Limit new connections based on the number of jobs currently queued for
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processing (see IKE_SA_INIT DROPPING).
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charon.initiator_only = no
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Causes charon daemon to ignore IKE initiation requests.
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charon.install_routes = yes
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Install routes into a separate routing table for established IPsec tunnels.
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charon.install_virtual_ip = yes
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Install virtual IP addresses.
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charon.install_virtual_ip_on
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The name of the interface on which virtual IP addresses should be installed.
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The name of the interface on which virtual IP addresses should be installed.
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If not specified the addresses will be installed on the outbound interface.
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charon.integrity_test = no
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Check daemon, libstrongswan and plugin integrity at startup.
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charon.interfaces_ignore
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A comma-separated list of network interfaces that should be ignored, if
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**interfaces_use** is specified this option has no effect.
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charon.interfaces_use
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A comma-separated list of network interfaces that should be used by charon.
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All other interfaces are ignored.
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charon.keep_alive = 20s
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NAT keep alive interval.
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charon.leak_detective.detailed = yes
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Includes source file names and line numbers in leak detective output.
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charon.leak_detective.usage_threshold = 10240
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Threshold in bytes for leaks to be reported (0 to report all).
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charon.leak_detective.usage_threshold_count = 0
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Threshold in number of allocations for leaks to be reported (0 to report
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all).
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charon.load
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Plugins to load in the IKE daemon charon.
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charon.load_modular = no
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Determine plugins to load via each plugin's load option.
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If enabled, the list of plugins to load is determined via the value of the
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_charon.plugins.<name>.load_ options. In addition to a simple boolean flag
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that option may take an integer value indicating the priority of a plugin,
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which would influence the order of a plugin in the plugin list (the default
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is 1). If two plugins have the same priority their order in the default
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plugin list is preserved. Enabled plugins not found in that list are ordered
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alphabetically before other plugins with the same priority.
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charon.max_packet = 10000
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Maximum packet size accepted by charon.
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charon.multiple_authentication = yes
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Enable multiple authentication exchanges (RFC 4739).
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charon.nbns1
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WINS servers assigned to peer via configuration payload (CP).
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charon.nbns2
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WINS servers assigned to peer via configuration payload (CP).
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charon.port = 500
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UDP port used locally. If set to 0 a random port will be allocated.
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charon.port_nat_t = 4500
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UDP port used locally in case of NAT-T. If set to 0 a random port will be
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allocated. Has to be different from **charon.port**, otherwise a random
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port will be allocated.
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charon.process_route = yes
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Process RTM_NEWROUTE and RTM_DELROUTE events.
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charon.processor.priority_threads {}
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Section to configure the number of reserved threads per priority class
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see JOB PRIORITY MANAGEMENT in **strongswan.conf**(5).
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charon.receive_delay = 0
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Delay in ms for receiving packets, to simulate larger RTT.
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charon.receive_delay_response = yes
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Delay response messages.
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charon.receive_delay_request = yes
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Delay request messages.
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charon.receive_delay_type = 0
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Specific IKEv2 message type to delay, 0 for any.
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charon.replay_window = 32
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Size of the AH/ESP replay window, in packets.
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charon.retransmit_base = 1.8
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Base to use for calculating exponential back off, see IKEv2 RETRANSMISSION
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in **strongswan.conf**(5).
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charon.retransmit_timeout = 4.0
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Timeout in seconds before sending first retransmit.
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charon.retransmit_tries = 5
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Number of times to retransmit a packet before giving up.
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charon.retry_initiate_interval = 0
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Interval to use when retrying to initiate an IKE_SA (e.g. if DNS resolution
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failed), 0 to disable retries.
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charon.reuse_ikesa = yes
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Initiate CHILD_SA within existing IKE_SAs.
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charon.routing_table
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Numerical routing table to install routes to.
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charon.routing_table_prio
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Priority of the routing table.
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charon.send_delay = 0
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Delay in ms for sending packets, to simulate larger RTT.
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charon.send_delay_response = yes
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Delay response messages.
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charon.send_delay_request = yes
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Delay request messages.
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charon.send_delay_type = 0
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Specific IKEv2 message type to delay, 0 for any.
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charon.send_vendor_id = no
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Send strongSwan vendor ID payload
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charon.threads = 16
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Number of worker threads in charon.
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Number of worker threads in charon. Several of these are reserved for long
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running tasks in internal modules and plugins. Therefore, make sure you
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don't set this value too low. The number of idle worker threads listed in
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_ipsec statusall_ might be used as indicator on the number of reserved
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threads.
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charon.tls.cipher
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List of TLS encryption ciphers.
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charon.tls.key_exchange
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List of TLS key exchange methods.
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charon.tls.mac
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List of TLS MAC algorithms.
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charon.tls.suites
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List of TLS cipher suites.
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charon.user
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Name of the user the daemon changes to after startup.
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charon.x509.enforce_critical = yes
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Discard certificates with unsupported or unknown critical extensions.
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