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    iPhone vs. pfSense - Schwierigkeiten beim Aufbau eines IKEv2 VPN

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    • altmetallerA
      altmetaller
      last edited by

      Hallo,

      ich bin der Anleitung unter IPsec VPN für mobile Benutzer auf der pfSense oder OPNsense Firewall einrichten gefolgt, um ein VPN zwischen einem iPhone (IOS 13.4.1) und einer pfSense einzurichten.

      Das klappt nicht :-(

      Der Neustart der pfSense und des VPN-Dienstes sieht so aus:

      Nov 2 15:13:34 	charon 		15[CFG] added configuration 'con-mobile'
Nov 2 15:13:34 	charon 		15[CFG] loaded certificate "CN=hostname.beim.dyndns, C=DE, ST=Bremen, L=Bremen, O=MEIN, OU=LAN" from '/var/etc/ipsec/ipsec.d/certs/cert-1.crt'
Nov 2 15:13:34 	charon 		15[CFG] adding virtual IP address pool 11.12.13.0/24
Nov 2 15:13:34 	charon 		15[CFG] keyexchange=ikev2
Nov 2 15:13:34 	charon 		15[CFG] mediation=no
Nov 2 15:13:34 	charon 		15[CFG] sha256_96=no
Nov 2 15:13:34 	charon 		15[CFG] dpdaction=1
Nov 2 15:13:34 	charon 		15[CFG] dpdtimeout=210
Nov 2 15:13:34 	charon 		15[CFG] dpddelay=35
Nov 2 15:13:34 	charon 		15[CFG] esp=aes256-sha256-modp2048,aes256-sha384-modp2048,aes256-sha512-modp2048,aes256gcm128-sha256-modp2048,aes256gcm128-sha384-modp2048,aes256gcm128-sha512-modp2048,aes256gcm96-sha256-modp2048,aes256gcm96-sha384-modp2048,aes256gcm96-sha512-modp2048,aes256gcm64-sha256-modp2048,aes256gcm64-sha384-modp2048,aes256gcm64-sha512-modp2048!
Nov 2 15:13:34 	charon 		15[CFG] ike=aes256-sha256-modp2048!
Nov 2 15:13:34 	charon 		15[CFG] eap_identity=%any
Nov 2 15:13:34 	charon 		15[CFG] rightauth=eap-mschapv2
Nov 2 15:13:34 	charon 		15[CFG] rightdns=192.168.0.1
Nov 2 15:13:34 	charon 		15[CFG] rightsourceip=11.12.13.0/24
Nov 2 15:13:34 	charon 		15[CFG] right=%any
Nov 2 15:13:34 	charon 		15[CFG] leftcert=/var/etc/ipsec/ipsec.d/certs/cert-1.crt
Nov 2 15:13:34 	charon 		15[CFG] leftid=fqdn:hostname.beim.dyndns
Nov 2 15:13:34 	charon 		15[CFG] leftauth=pubkey
Nov 2 15:13:34 	charon 		15[CFG] leftsubnet=192.168.0.0/24,192.168.72.0/24
Nov 2 15:13:34 	charon 		15[CFG] left=192.168.178.10
Nov 2 15:13:34 	charon 		15[CFG] conn con-mobile
Nov 2 15:13:34 	charon 		15[CFG] received stroke: add connection 'con-mobile'
Nov 2 15:13:34 	ipsec_starter 	26518 	'bypasslan' shunt PASS policy installed
Nov 2 15:13:34 	charon 		05[CFG] received stroke: route 'bypasslan'
Nov 2 15:13:34 	charon 		16[CFG] added configuration 'bypasslan'
Nov 2 15:13:34 	charon 		16[CFG] mediation=no
Nov 2 15:13:34 	charon 		16[CFG] sha256_96=no
Nov 2 15:13:34 	charon 		16[CFG] dpdtimeout=150
Nov 2 15:13:34 	charon 		16[CFG] dpddelay=30
Nov 2 15:13:34 	charon 		16[CFG] rightsubnet=192.168.0.0/24,2a02:8109:dc0:481a::/64
Nov 2 15:13:34 	charon 		16[CFG] right=%any
Nov 2 15:13:34 	charon 		16[CFG] leftsubnet=192.168.0.0/24,2a02:8109:dc0:481a::/64
Nov 2 15:13:34 	charon 		16[CFG] left=%any
Nov 2 15:13:34 	charon 		16[CFG] conn bypasslan
Nov 2 15:13:34 	charon 		16[CFG] received stroke: add connection 'bypasslan'
Nov 2 15:13:34 	ipsec_starter 	26518 	charon (26716) started after 460 ms
Nov 2 15:13:34 	charon 		00[JOB] spawning 16 worker threads
Nov 2 15:13:34 	charon 		00[LIB] loaded plugins: charon unbound aes des blowfish rc2 sha2 sha1 md4 md5 random nonce x509 revocation constraints pubkey pkcs1 pkcs7 pkcs8 pkcs12 pgp dnskey sshkey ipseckey pem openssl fips-prf curve25519 xcbc cmac hmac drbg curl attr kernel-pfkey kernel-pfroute resolve socket-default stroke vici updown eap-identity eap-sim eap-md5 eap-mschapv2 eap-dynamic eap-radius eap-tls eap-ttls eap-peap xauth-generic xauth-eap xauth-pam whitelist addrblock counters
Nov 2 15:13:34 	charon 		00[CFG] loaded 0 RADIUS server configurations
Nov 2 15:13:34 	charon 		00[CFG] opening triplet file /usr/local/etc/ipsec.d/triplets.dat failed: No such file or directory
Nov 2 15:13:34 	charon 		00[CFG] loaded EAP secret for jka
Nov 2 15:13:34 	charon 		00[CFG] loaded RSA private key from '/var/etc/ipsec/ipsec.d/private/cert-1.key'
Nov 2 15:13:34 	charon 		00[CFG] loading secrets from '/var/etc/ipsec/ipsec.secrets'
Nov 2 15:13:34 	charon 		00[CFG] loading crls from '/usr/local/etc/ipsec.d/crls'
Nov 2 15:13:34 	charon 		00[CFG] loading attribute certificates from '/usr/local/etc/ipsec.d/acerts'
Nov 2 15:13:34 	charon 		00[CFG] loading ocsp signer certificates from '/usr/local/etc/ipsec.d/ocspcerts'
Nov 2 15:13:34 	charon 		00[CFG] loading aa certificates from '/usr/local/etc/ipsec.d/aacerts'
Nov 2 15:13:34 	charon 		00[CFG] loaded ca certificate "CN=pfsense.mein.lan, C=DE, ST=Bremen, L=Bremen, O=MEIN, OU=LAN" from '/usr/local/etc/ipsec.d/cacerts/552649c0.0.crt'
Nov 2 15:13:34 	charon 		00[CFG] loading ca certificates from '/usr/local/etc/ipsec.d/cacerts'
Nov 2 15:13:34 	charon 		00[CFG] ipseckey plugin is disabled
Nov 2 15:13:34 	charon 		00[CFG] loading unbound trust anchors from '/usr/local/etc/ipsec.d/dnssec.keys'
Nov 2 15:13:34 	charon 		00[CFG] loading unbound resolver config from '/etc/resolv.conf'
Nov 2 15:13:34 	charon 		00[NET] enabling UDP decapsulation for IPv6 on port 4500 failed
Nov 2 15:13:34 	charon 		00[KNL] unable to set UDP_ENCAP: Invalid argument
Nov 2 15:13:34 	charon 		00[DMN] Starting IKE charon daemon (strongSwan 5.8.4, FreeBSD 11.3-STABLE, amd64)
Nov 2 15:13:33 	ipsec_starter 	26074 	Starting strongSwan 5.8.4 IPsec [starter]...

      Hier ein fehlerhafter Verbindungsversuch:

      Nov 2 15:15:50 	charon 		12[IKE] <bypasslan|1> IKE_SA bypasslan[1] state change: CONNECTING => DESTROYING
Nov 2 15:15:50 	charon 		12[NET] <bypasslan|1> sending packet: from 192.168.0.1[4500] to 192.168.0.110[4500] (80 bytes)
Nov 2 15:15:50 	charon 		12[ENC] <bypasslan|1> generating IKE_AUTH response 1 [ N(AUTH_FAILED) ]
Nov 2 15:15:50 	charon 		12[IKE] <bypasslan|1> peer supports MOBIKE
Nov 2 15:15:50 	charon 		12[IKE] <bypasslan|1> received ESP_TFC_PADDING_NOT_SUPPORTED, not using ESPv3 TFC padding
Nov 2 15:15:50 	charon 		12[IKE] <bypasslan|1> processing INTERNAL_DNS_DOMAIN attribute
Nov 2 15:15:50 	charon 		12[IKE] <bypasslan|1> processing INTERNAL_IP6_DNS attribute
Nov 2 15:15:50 	charon 		12[IKE] <bypasslan|1> processing INTERNAL_IP6_DHCP attribute
Nov 2 15:15:50 	charon 		12[IKE] <bypasslan|1> processing INTERNAL_IP6_ADDRESS attribute
Nov 2 15:15:50 	charon 		12[IKE] <bypasslan|1> processing INTERNAL_IP4_DNS attribute
Nov 2 15:15:50 	charon 		12[IKE] <bypasslan|1> processing INTERNAL_IP4_DHCP attribute
Nov 2 15:15:50 	charon 		12[IKE] <bypasslan|1> processing INTERNAL_IP4_NETMASK attribute
Nov 2 15:15:50 	charon 		12[IKE] <bypasslan|1> processing INTERNAL_IP4_ADDRESS attribute
Nov 2 15:15:50 	charon 		12[CFG] <bypasslan|1> no alternative config found
Nov 2 15:15:50 	charon 		12[IKE] <bypasslan|1> peer requested EAP, config unacceptable
Nov 2 15:15:50 	charon 		12[CFG] <bypasslan|1> selected peer config 'bypasslan'
Nov 2 15:15:50 	charon 		12[CFG] <1> candidate "bypasslan", match: 1/1/24 (me/other/ike)
Nov 2 15:15:50 	charon 		12[CFG] <1> looking for peer configs matching 192.168.0.1[hostname.beim.dyndns]...192.168.0.110[192.168.0.110]
Nov 2 15:15:50 	charon 		12[ENC] <1> parsed IKE_AUTH request 1 [ IDi N(INIT_CONTACT) IDr CPRQ(ADDR MASK DHCP DNS ADDR6 DHCP6 DNS6 DOMAIN) N(ESP_TFC_PAD_N) N(NON_FIRST_FRAG) SA TSi TSr N(MOBIKE_SUP) ]
Nov 2 15:15:50 	charon 		12[ENC] <1> unknown attribute type INTERNAL_DNS_DOMAIN
Nov 2 15:15:50 	charon 		12[NET] <1> received packet: from 192.168.0.110[4500] to 192.168.0.1[4500] (512 bytes)
Nov 2 15:15:50 	charon 		12[NET] <1> sending packet: from 192.168.0.1[500] to 192.168.0.110[500] (481 bytes)
Nov 2 15:15:50 	charon 		12[ENC] <1> generating IKE_SA_INIT response 0 [ SA KE No N(NATD_S_IP) N(NATD_D_IP) CERTREQ N(FRAG_SUP) N(CHDLESS_SUP) N(MULT_AUTH) ]
Nov 2 15:15:50 	charon 		12[IKE] <1> sending cert request for "CN=pfsense.mein.lan, C=DE, ST=Bremen, L=Bremen, O=MEIN, OU=LAN"
Nov 2 15:15:50 	charon 		12[CFG] <1> selected proposal: IKE:AES_CBC_256/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/MODP_2048
Nov 2 15:15:50 	charon 		12[CFG] <1> configured proposals: IKE:AES_CBC_128/AES_CBC_192/AES_CBC_256/CAMELLIA_CBC_128/CAMELLIA_CBC_192/CAMELLIA_CBC_256/3DES_CBC/HMAC_SHA2_256_128/HMAC_SHA2_384_192/HMAC_SHA2_512_256/HMAC_SHA1_96/AES_XCBC_96/AES_CMAC_96/PRF_HMAC_SHA2_256/PRF_HMAC_SHA2_384/PRF_HMAC_SHA2_512/PRF_AES128_XCBC/PRF_AES128_CMAC/PRF_HMAC_SHA1/ECP_256/ECP_384/ECP_521/ECP_256_BP/ECP_384_BP/ECP_512_BP/CURVE_25519/MODP_3072/MODP_4096/MODP_6144/MODP_8192/MODP_2048, IKE:AES_GCM_16_128/AES_GCM_16_192/AES_GCM_16_256/AES_GCM_12_128/AES_GCM_12_192/AES_GCM_12_256/AES_GCM_8_128/AES_GCM_8_192/AES_GCM_8_256/PRF_HMAC_SHA2_256/PRF_HMAC_SHA2_384/PRF_HMAC_SHA2_512/PRF_AES128_XCBC/PRF_AES128_CMAC/PRF_HMAC_SHA1/ECP_256/ECP_384/ECP_521/ECP_256_BP/ECP_384_BP/ECP_512_BP/CURVE_25519/MODP_3072/MODP_4096/MODP_6144/MODP_8192/MODP_2048
Nov 2 15:15:50 	charon 		12[CFG] <1> received proposals: IKE:AES_CBC_256/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/MODP_2048, IKE:AES_CBC_256/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/ECP_256, IKE:AES_CBC_256/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/MODP_1536, IKE:AES_CBC_128/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, IKE:3DES_CBC/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024
Nov 2 15:15:50 	charon 		12[CFG] <1> proposal matches
Nov 2 15:15:50 	charon 		12[CFG] <1> selecting proposal:
Nov 2 15:15:50 	charon 		12[IKE] <1> IKE_SA (unnamed)[1] state change: CREATED => CONNECTING
Nov 2 15:15:50 	charon 		12[IKE] <1> 192.168.0.110 is initiating an IKE_SA
Nov 2 15:15:50 	charon 		12[CFG] <1> found matching ike config: %any...%any with prio 24
Nov 2 15:15:50 	charon 		12[CFG] <1> candidate: %any...%any, prio 24
Nov 2 15:15:50 	charon 		12[CFG] <1> looking for an IKEv2 config for 192.168.0.1...192.168.0.110
Nov 2 15:15:50 	charon 		12[ENC] <1> parsed IKE_SA_INIT request 0 [ SA KE No N(REDIR_SUP) N(NATD_S_IP) N(NATD_D_IP) N(FRAG_SUP) ]
Nov 2 15:15:50 	charon 		12[NET] <1> received packet: from 192.168.0.110[500] to 192.168.0.1[500] (604 bytes)

      Ich habe diese Frage natürlich auch im anderen Forum platziert. Aber ich dachte mir, dass ich parallel dazu auch mal hier frage. Wenn ich "irgendwo" eine Lösung habe, kann ich die ja gerne crossposten.

      Liebe Grüße,
      Jörg

      nonickN 1 Reply Last reply Reply Quote 0
      • nonickN
        nonick @altmetaller
        last edited by nonick

        @altmetaller Was mir gleich auffällt wäre das:

        Nov 2 15:15:50 	charon 		12[NET] <1> received packet: from 192.168.0.110[500] to 192.168.0.1[500] (604 bytes)

        Du versuchst eine IPSec VPN Verbindung im gleichen Netz aufzubauen, das funktioniert natürlich nicht. Hast du das mal von extern, außerhalb deines Netzwerks getestet?

        Wenn das intern funktionieren soll, muss folgender Haken bei den erweiterten Einstellungen raus.
        vpn.png

        Netgate 6100

        1 Reply Last reply Reply Quote 0
        • altmetallerA
          altmetaller
          last edited by altmetaller

          Hallo,

          "sehr gut" beobachtet" :-)

          Meine Firewall hat drei Netzwerkschnittstellen:

          • WAN
          • LAN
          • DMZ

          Das Handy hängt an der LAN-Schnittstelle.

          Mein Ziel ist ein VPN mit Zugriff auf die DMZ, dass ich "immer eingeschaltet lassen kann". Der externe Hostname existiert daher doppelt:

          • beim DynDNS-Anbieter (zeigt auf die Provider-IP)
          • im lokalen DNS (zeigt auf die LAN-Schnittstelle der pfSense)

          Dein Kommentar klopft mir tatsächlich gerade ein paar Schuppen hinter den Ohren hervor.

          Aber - was wäre denn die korrekte Strategie? Ich habe keinen Bock, das VPN immer von Hand ein- und auszuschalten - abhängig davon, ob ich in meinem WLAN bin.

          Gruß,
          Jörg

          Edit: Das VPN funktioniert perfekt! Es geht somit tatsächlich "nur" noch um die Vorgehensweise bzw. das Bedürfnis, das VPN nicht jedes Mal "von Hand" umschalten zu müssen :-)

          1 Reply Last reply Reply Quote 0
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