Scep
These scenarios show how to configure the SCEP protocol to retrieve certificates from a PKI server.
Test SCEP Protocol With Linux PKI
Description
In this scenario, the SCEP protocol is used to retrieve digital certificates (X509) from a Linux PKI server.
Scenario
Step 1: Set the following configuration in DUT0 :
set interfaces ethernet eth0 address 10.215.168.64/24 set protocols static route 192.168.212.0/22 next-hop 10.215.168.1 set system certificate scep csr CSR cgi-path /scep set system certificate scep csr CSR cipher aes set system certificate scep csr CSR digest sha256 set system certificate scep csr CSR distinguished-names CN=MyUserCert set system certificate scep csr CSR encrypted-password U2FsdGVkX18dm9W6+UErO9lEoFhzZBu1/bClusfqUdM= set system certificate scep csr CSR port 8080 set system certificate scep csr CSR url 'http://10.215.168.1' set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
Step 2: Ping IP address 10.215.168.1 from DUT0:
admin@DUT0$ ping 10.215.168.1 count 1 size 56 timeout 1Show output
PING 10.215.168.1 (10.215.168.1) 56(84) bytes of data. 64 bytes from 10.215.168.1: icmp_seq=1 ttl=64 time=0.135 ms --- 10.215.168.1 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 0.135/0.135/0.135/0.000 ms
Step 3: Run command pki scep show CSR at DUT0 and check if output matches the following regular expressions:
ca\s+Valid usercert\s+ValidShow output
------------------------------------------------------------------------------------------------- Certificate Status Usage NotBefore NotAfter ------------------------------------------------------------------------------------------------- ca Valid Encipherment & Signature Apr 16 09:19:39 2025 GMT Apr 11 09:19:39 2045 GMT usercert Valid - Apr 6 17:46:42 2026 GMT Apr 6 17:46:42 2027 GMT
Step 4: Run command pki show certificate running://auth/certificates/scep/CSR/ca/ca.der at DUT0 and check if output contains the following tokens:
Subject: CN = Teldat-PKI, O = Teldat, L = Madrid, C = ESShow output
Certificate: Data: Version: 3 (0x2) Serial Number: 7c:28:60:8a:6f:42:5d:c8:44:f0:10:0d:61:e5:ca:40:11:bc:ea:f2 Signature Algorithm: sha256WithRSAEncryption Issuer: CN = Teldat-PKI, O = Teldat, L = Madrid, C = ES Validity Not Before: Apr 16 09:19:39 2025 GMT Not After : Apr 11 09:19:39 2045 GMT Subject: CN = Teldat-PKI, O = Teldat, L = Madrid, C = ES Subject Public Key Info: Public Key Algorithm: rsaEncryption Public-Key: (2048 bit) Modulus: 00:de:b7:3b:d9:9b:e3:d3:57:9b:b0:33:67:c0:40: 4f:45:84:ea:c2:35:a6:08:3b:3a:fd:6d:fa:d7:2b: 3d:7f:1c:a1:92:15:08:8b:5c:02:ec:6a:66:46:c5: 6f:7f:9b:9d:c3:86:e1:97:47:9b:5e:ea:96:5b:bf: 68:35:96:4f:6e:64:c6:7d:f6:da:6b:f9:bf:98:b1: 32:63:ae:f4:5b:2f:cd:6d:d7:ef:db:01:12:b0:a4: 54:95:6e:e8:84:4a:0a:f1:13:83:13:a1:7a:1d:f4: 06:3f:e3:53:5d:9f:68:a1:a0:5c:51:05:ba:8c:da: 00:11:64:4b:e8:37:c3:70:43:9c:16:dd:46:fb:34: e4:3c:ae:a4:9a:a1:da:cf:a1:f5:93:13:a6:0e:68: 51:31:f7:26:63:a3:8b:47:c3:94:e4:34:d2:b0:36: cf:22:e5:81:dd:a4:01:e8:79:08:37:ad:7a:b9:da: 24:37:cc:53:f4:51:f8:b5:67:09:15:63:52:60:7f: b0:e2:f0:38:cd:3c:13:42:81:5f:e2:dd:e2:c5:37: f3:ef:05:8c:85:2f:2a:0a:f4:94:2f:70:56:7f:7d: a9:f6:ca:69:0b:a7:40:e1:fa:bc:f0:f4:01:7a:76: 55:f4:2a:57:43:8b:f1:87:58:f2:f4:db:23:26:33: f8:4f Exponent: 65537 (0x10001) X509v3 extensions: X509v3 Subject Key Identifier: D3:97:2E:56:37:6A:89:77:01:D4:E3:42:0D:EC:E7:10:79:9C:E8:7C X509v3 Authority Key Identifier: keyid:D3:97:2E:56:37:6A:89:77:01:D4:E3:42:0D:EC:E7:10:79:9C:E8:7C DirName:/CN=Teldat-PKI/O=Teldat/L=Madrid/C=ES serial:7C:28:60:8A:6F:42:5D:C8:44:F0:10:0D:61:E5:CA:40:11:BC:EA:F2 X509v3 Basic Constraints: critical CA:TRUE, pathlen:0 X509v3 Key Usage: critical Digital Signature, Key Encipherment, Certificate Sign, CRL Sign Signature Algorithm: sha256WithRSAEncryption Signature Value: 5e:0d:47:96:a2:24:38:fa:62:5b:0c:c2:4e:59:23:79:40:1b: 88:d1:63:11:0b:ce:bc:63:46:cd:70:33:52:75:4b:85:c1:39: be:3c:ce:7c:66:53:63:b4:39:07:ec:ef:52:fe:fa:dc:c1:fb: e4:51:61:28:58:4f:90:71:83:50:7d:62:a9:16:fa:45:89:08: 5f:39:43:6a:b1:bb:ad:4e:6f:50:bc:07:4f:1c:5b:07:df:63: ec:44:20:48:b6:97:00:e2:9d:8e:42:9e:96:5f:71:7a:43:96: de:fd:66:6b:45:85:5d:e4:dc:bf:e9:34:64:4f:3a:7b:33:a0: 54:80:3b:9a:5b:1f:3f:3f:1c:09:a3:8e:d8:b6:2a:ba:b2:07: 87:fa:0f:a5:69:41:06:b1:14:6f:09:4f:bb:88:60:87:70:83: 31:73:ed:2a:03:ca:3c:19:0a:b2:24:61:c6:ce:09:97:ac:6e: da:cb:47:88:c5:f5:a7:74:d2:96:e0:cc:c3:b6:b7:f6:64:9f: ad:1c:7f:36:fd:39:7c:57:54:a5:e9:8a:82:90:4d:cd:74:99: 27:4d:f6:62:a6:96:c5:6e:d3:02:ec:c1:4d:5f:46:b6:82:75: 12:61:d7:a3:d6:70:f6:35:9d:9c:30:06:84:af:b2:cb:a5:a0: 5e:d3:1d:6c
Step 5: Run command pki show certificate running://auth/certificates/scep/CSR/user/cert at DUT0 and check if output contains the following tokens:
Subject: CN = MyUserCertShow output
Certificate: Data: Version: 3 (0x2) Serial Number: 8 (0x8) Signature Algorithm: sha256WithRSAEncryption Issuer: CN = Teldat-PKI, O = Teldat, L = Madrid, C = ES Validity Not Before: Apr 6 17:46:42 2026 GMT Not After : Apr 6 17:46:42 2027 GMT Subject: CN = MyUserCert Subject Public Key Info: Public Key Algorithm: rsaEncryption Public-Key: (2048 bit) Modulus: 00:aa:ef:e3:23:35:95:ff:14:69:fb:59:e1:fb:74: 4d:02:65:1f:4c:34:4c:be:30:db:a7:ff:60:a8:a3: d4:58:40:09:36:f0:d4:8c:9e:a7:95:d4:5f:d1:4c: 05:90:a0:9c:b1:60:9c:4e:94:c3:4b:d4:20:f9:2e: c2:f4:f2:4f:e6:00:ec:ce:48:35:50:11:b2:dc:bc: 4c:97:29:26:d5:29:1d:1f:33:04:66:1e:9f:85:bc: ee:54:47:84:96:ed:8b:92:ae:66:13:1a:06:90:b5: e6:a2:92:b0:1e:c6:07:16:2a:6e:bd:3f:ad:61:41: b0:f4:90:9c:7c:02:ea:fa:ef:28:bd:6d:29:f9:9a: 11:22:ab:92:b4:a3:3d:4a:db:e8:09:68:49:53:92: 08:d5:17:af:e9:a9:15:30:bf:f7:a6:95:0b:a7:ce: 49:ff:b2:df:16:0d:7c:cd:5b:76:cf:bb:9e:84:b9: 85:23:f9:67:9d:f3:44:e8:dd:bc:da:32:c8:a0:96: ae:55:d0:b6:18:33:13:84:5c:d8:fb:59:75:9d:de: c0:bf:be:74:f1:1e:40:63:1d:7c:3a:ae:6a:7f:27: 73:08:35:b7:dc:7f:2c:3b:01:47:93:03:34:0f:76: e8:68:2a:18:b5:18:3a:ad:b5:e3:4d:a7:63:c5:d7: f7:75 Exponent: 65537 (0x10001) X509v3 extensions: X509v3 Key Usage: critical Digital Signature X509v3 Extended Key Usage: TLS Web Client Authentication X509v3 Subject Key Identifier: FC:3D:DF:EC:62:FD:FD:21:E9:B5:B4:C2:22:16:0E:05:87:E5:0A:7A X509v3 Authority Key Identifier: D3:97:2E:56:37:6A:89:77:01:D4:E3:42:0D:EC:E7:10:79:9C:E8:7C Signature Algorithm: sha256WithRSAEncryption Signature Value: ab:6c:ac:a9:8b:04:79:19:19:ea:75:8b:01:33:93:8c:e0:7b: 8d:84:f1:cc:d1:26:95:94:32:e7:4b:5b:7a:1e:49:be:42:51: ab:13:fa:5d:d2:4b:c8:6a:1d:05:48:6b:18:e8:41:5d:fe:89: 1f:68:b0:75:ff:01:e7:8f:39:1e:ca:ba:de:be:ad:44:5e:22: 47:9a:ac:fe:3a:9c:dc:7a:c1:15:06:79:62:73:3e:fb:90:4d: 20:2e:18:3b:56:07:c8:38:d0:64:47:da:01:d0:6f:16:25:1c: 3f:87:81:6e:8b:e5:e6:63:1e:c0:fc:b6:6a:ae:d2:43:80:7b: b8:2b:08:a3:51:d2:63:ab:ed:7e:b5:90:16:e5:2a:7d:9b:f6: 43:c2:40:d0:4d:dd:43:a7:8e:f1:ed:f5:15:a5:64:29:ea:38: 55:08:6c:6f:f5:18:26:65:b9:cd:91:d4:5b:48:de:e8:4e:00: 3c:06:c5:c3:c6:4c:c5:e6:45:8e:46:16:73:17:9e:95:b7:9a: 91:8b:fd:5d:f2:b5:b3:9e:7f:31:25:08:8c:58:ed:37:0a:82: f7:5e:a6:3a:49:c0:9e:0f:a3:da:a2:63:c9:5a:7b:41:77:64: ea:8c:b2:83:ff:6b:64:a3:4e:74:64:68:b1:11:0c:78:43:3f: e5:6b:74:7c
Test SCEP Protocol With Windows Server PKI
Description
In this scenario, the SCEP protocol is used to retrieve digital certificates (X509) from a Windows PKI server.
Scenario
Step 1: Set the following configuration in DUT0 :
set interfaces ethernet eth0 address 10.215.168.64/24 set protocols static route 192.168.212.0/22 next-hop 10.215.168.1 set system certificate scep csr CSR cgi-path CertSrv/mscep/mscep.dll/pkiclient.exe set system certificate scep csr CSR distinguished-names CN=MyUserCert set system certificate scep csr CSR encrypted-password U2FsdGVkX19v9M11Iwpn2sUjrLE0++O1vo8DabQl4Vuhzke/s4tA5eMSYK/j1FGQuKkva38cnPwFKLJZCxq1hg== set system certificate scep csr CSR url 'http://192.168.213.25/' set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
Step 2: Ping IP address 10.215.168.1 from DUT0:
admin@DUT0$ ping 10.215.168.1 count 1 size 56 timeout 1Show output
PING 10.215.168.1 (10.215.168.1) 56(84) bytes of data. 64 bytes from 10.215.168.1: icmp_seq=1 ttl=64 time=0.163 ms --- 10.215.168.1 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 0.163/0.163/0.163/0.000 ms
Step 3: Ping IP address 192.168.213.25 from DUT0:
admin@DUT0$ ping 192.168.213.25 count 1 size 56 timeout 1Show output
PING 192.168.213.25 (192.168.213.25) 56(84) bytes of data. 64 bytes from 192.168.213.25: icmp_seq=1 ttl=126 time=0.518 ms --- 192.168.213.25 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 0.518/0.518/0.518/0.000 ms
Step 4: Run command pki scep show CSR at DUT0 and check if output matches the following regular expressions:
ca\s+Valid usercert\s+ValidShow output
------------------------------------------------------------------------------------- Certificate Status Usage NotBefore NotAfter ------------------------------------------------------------------------------------- ca Valid Signature Jan 9 09:34:41 2026 GMT Jan 9 09:44:41 2056 GMT ra Valid Encipherment Jan 9 09:37:26 2026 GMT Jan 9 09:37:26 2028 GMT ra-2 Valid Signature Jan 9 09:37:25 2026 GMT Jan 9 09:37:25 2028 GMT usercert Valid - Apr 6 17:16:47 2026 GMT Apr 6 17:26:47 2028 GMT
Step 5: Run command pki show certificate running://auth/certificates/scep/CSR/ca/ca.der at DUT0 and check if output contains the following tokens:
Subject: DC = com, DC = scep, CN = scep-TELDATPKI-CAShow output
Certificate: Data: Version: 3 (0x2) Serial Number: 2e:aa:77:9e:fd:8d:47:8d:42:5f:96:57:64:8a:da:d1 Signature Algorithm: sha256WithRSAEncryption Issuer: DC = com, DC = scep, CN = scep-TELDATPKI-CA Validity Not Before: Jan 9 09:34:41 2026 GMT Not After : Jan 9 09:44:41 2056 GMT Subject: DC = com, DC = scep, CN = scep-TELDATPKI-CA Subject Public Key Info: Public Key Algorithm: rsaEncryption Public-Key: (2048 bit) Modulus: 00:be:22:9c:cd:53:99:06:1b:31:57:cd:72:1b:d7: 5d:99:b4:e2:e1:88:80:d4:40:53:49:be:ff:e0:5b: 8b:41:8c:96:e8:99:cd:19:ab:98:4c:99:77:ad:01: fc:51:cf:ea:d8:43:fc:5b:d2:dd:b5:05:04:ae:01: 28:e9:53:5d:bb:d2:65:71:d9:69:3c:04:4d:6b:6e: 8b:95:92:e4:e7:84:57:90:b3:5e:1f:76:34:7f:15: e2:fb:c0:78:bb:ec:a5:be:2f:33:9e:98:06:f1:4c: 1f:cc:ee:85:c2:f1:8f:3c:23:52:a2:94:af:0e:b8: d2:e3:0c:b7:07:49:b9:91:87:3e:76:89:61:f0:88: 4c:2f:da:6b:b9:75:93:6e:e4:e2:f1:19:48:00:f7: af:1b:70:19:15:2b:30:b3:78:24:dc:14:c4:e8:a0: 61:f9:68:09:7d:e9:3e:6f:e0:a3:44:d5:43:f8:78: aa:5f:a8:7a:3a:7c:2c:4e:21:69:24:be:2f:cb:57: bd:60:e8:b9:a5:3b:ad:0c:7b:d9:8d:82:3e:13:96: 8b:59:5a:2b:ec:b6:63:33:21:69:a5:30:b6:bb:84: e9:80:8d:db:3c:94:f7:52:05:76:6a:ed:d6:03:24: d8:97:46:a4:15:41:4d:17:98:7d:20:64:ac:fb:e9: 30:1d Exponent: 65537 (0x10001) X509v3 extensions: 1.3.6.1.4.1.311.20.2: ...C.A X509v3 Key Usage: critical Digital Signature, Certificate Sign, CRL Sign X509v3 Basic Constraints: critical CA:TRUE X509v3 Subject Key Identifier: 18:DA:43:2C:11:47:FC:1A:DA:19:D4:6C:8B:2D:58:AA:75:ED:17:94 1.3.6.1.4.1.311.21.1: ... Signature Algorithm: sha256WithRSAEncryption Signature Value: 3b:f8:53:b9:17:78:98:fa:4a:63:a8:5b:57:bc:f6:67:d8:47: 48:8a:22:2f:d8:39:22:44:c9:f8:aa:fd:e8:81:13:c4:5f:9b: b2:72:0a:35:b1:0c:64:ff:ff:89:05:f0:d7:2a:e4:5f:da:6b: 7b:90:88:5e:6c:77:e5:17:83:19:43:10:35:f8:b5:e3:b8:b5: 16:c1:79:5e:cc:71:00:91:6a:aa:b7:7e:e8:35:99:b3:74:c1: b7:d9:93:8c:6b:4e:64:5a:0a:aa:09:ce:00:d6:f2:f0:f6:87: ec:cd:dc:d0:07:d5:cb:6d:7f:34:72:80:7b:8c:71:f3:d8:f6: a4:38:45:0e:19:79:bd:07:d6:91:a0:4f:4f:2e:55:f1:ca:f7: f3:b1:94:33:7b:f0:76:2b:10:d6:9b:49:ef:96:83:f3:f5:2e: b3:c4:48:13:2f:19:f3:18:7f:4c:7a:09:79:3b:52:94:d9:86: 65:58:32:34:ba:89:6e:54:99:ab:12:7b:f5:3d:61:f3:39:22: 08:ef:7b:77:ba:95:7e:8e:ca:51:4d:80:45:2b:43:d8:b1:37: fb:0c:69:7a:c8:5c:dc:4c:16:5f:a1:09:5c:d6:85:ed:93:76: fa:56:67:fe:fc:97:3c:8d:f8:3c:39:d7:31:07:e6:69:42:3d: 3d:d2:86:1e
Step 6: Run command pki show certificate running://auth/certificates/scep/CSR/user/cert at DUT0 and check if output contains the following tokens:
Subject: CN = MyUserCertShow output
Certificate: Data: Version: 3 (0x2) Serial Number: 11:00:00:11:c4:e3:b6:02:83:d3:96:60:47:00:00:00:00:11:c4 Signature Algorithm: sha256WithRSAEncryption Issuer: DC = com, DC = scep, CN = scep-TELDATPKI-CA Validity Not Before: Apr 6 17:16:47 2026 GMT Not After : Apr 6 17:26:47 2028 GMT Subject: CN = MyUserCert Subject Public Key Info: Public Key Algorithm: rsaEncryption Public-Key: (2048 bit) Modulus: 00:b4:c6:e0:d5:24:24:bb:ab:c3:2d:be:2a:09:d4: 3b:94:58:70:2c:aa:81:07:f6:33:d2:30:38:9f:d4: 3e:bd:73:10:64:5f:fb:2f:c9:cf:fc:b5:11:8d:3c: 67:a6:d6:4a:a6:4e:68:9b:9e:96:89:00:20:3c:90: 27:80:19:7d:e7:af:23:9e:14:71:86:65:b1:c0:f6: 1d:f1:7d:f8:97:19:e2:be:2a:d7:b6:7d:bc:44:99: 47:8d:5b:51:5b:d7:37:de:aa:96:39:1d:f0:35:84: 7b:c1:1b:b9:eb:bd:f0:3b:07:f5:c4:00:e7:09:8f: 15:de:91:74:8c:ba:ad:f5:6d:03:29:cb:57:c6:62: 70:fa:38:4c:92:77:d1:a9:bb:d7:a5:42:00:e9:30: 31:20:95:6f:94:4d:60:fa:3e:ae:1e:1d:fe:c1:bd: d7:80:8f:10:47:21:c8:6c:f0:94:35:8e:40:60:b7: f2:31:3f:6a:5f:9f:12:cf:26:c2:0e:59:b1:fa:9c: 80:73:b8:d7:00:d3:41:6c:9e:80:23:ce:4c:b7:97: 2a:09:bb:dd:86:b2:36:37:78:fc:84:c9:59:1c:23: 5e:2b:1f:0d:0c:0f:96:af:6c:4f:e3:78:ee:3b:01: 8d:3a:88:f6:ff:89:f5:b8:85:6c:42:df:8a:44:c4: 6e:41 Exponent: 65537 (0x10001) X509v3 extensions: X509v3 Subject Key Identifier: EA:8B:B5:49:43:6C:59:4B:3D:B3:81:59:98:0D:3B:29:D2:66:94:72 X509v3 Authority Key Identifier: 18:DA:43:2C:11:47:FC:1A:DA:19:D4:6C:8B:2D:58:AA:75:ED:17:94 X509v3 CRL Distribution Points: Full Name: URI:ldap:///CN=scep-TELDATPKI-CA,CN=TeldatPKI,CN=CDP,CN=Public%20Key%20Services,CN=Services,CN=Configuration,DC=scep,DC=com?certificateRevocationList?base?objectClass=cRLDistributionPoint Authority Information Access: CA Issuers - URI:ldap:///CN=scep-TELDATPKI-CA,CN=AIA,CN=Public%20Key%20Services,CN=Services,CN=Configuration,DC=scep,DC=com?cACertificate?base?objectClass=certificationAuthority X509v3 Key Usage: critical Digital Signature, Key Encipherment, Data Encipherment 1.3.6.1.4.1.311.21.7: 0..&+.....7.....3......./...(...f<...[...]..d... X509v3 Extended Key Usage: 1.3.6.1.4.1.311.20.1, Microsoft Encrypted File System, Code Signing, Any Extended Key Usage, TLS Web Server Authentication, Signing KDC Response, TLS Web Client Authentication, 1.3.6.1.4.1.311.21.5, 1.3.6.1.4.1.311.20.2.1, 1.3.6.1.5.5.8.2.2 1.3.6.1.4.1.311.21.10: 0y0...+.....7..0.. +.....7 ..0 ..+.......0...U.%.0 ..+.......0...+......0 ..+.......0...+.....7..0.. +.....7...0 ..+....... S/MIME Capabilities: 050...*.H.. ......0...*.H.. ......0...+....0 ..*.H.. .. Signature Algorithm: sha256WithRSAEncryption Signature Value: 67:13:ea:73:2b:9f:25:f8:17:09:68:5e:d4:b9:58:e7:c4:ef: dc:d3:f6:16:e7:70:94:6a:87:2e:92:72:d2:6c:60:99:b4:7f: 85:12:83:be:3c:6f:8e:4a:7a:28:d2:66:70:c9:57:9d:99:25: da:c3:5f:a6:76:c3:14:5b:86:a0:8b:30:66:b6:c9:4d:5a:9a: 94:64:5e:c9:eb:cd:91:08:8a:7a:e8:bc:37:5c:b0:42:ef:d0: 2d:8f:4f:70:9a:7b:71:cd:93:0c:f7:a7:f9:0e:cf:77:ab:ed: 3b:29:df:9c:7e:3e:34:72:c3:91:77:89:4b:c7:1d:98:c5:41: c2:16:5f:c7:34:80:5a:76:4f:1a:99:f3:3c:e8:f4:46:c8:2b: ff:2b:ba:e9:e7:1f:6c:65:c8:62:cd:cf:fa:58:75:39:c1:24: c1:45:53:7f:79:5e:b6:48:ce:85:09:54:72:2f:fd:fc:c0:9d: 66:48:03:09:64:e9:7f:85:18:44:91:ee:75:76:15:0f:4f:e6: 11:ee:18:dd:4a:dc:3d:f7:11:a8:ba:18:80:35:f3:fe:f6:7b: 3a:5e:72:dd:43:4a:61:19:a5:93:e7:43:70:ff:4d:4a:6a:97: 4d:c5:d1:d5:dc:5c:99:24:ed:fe:31:56:8e:2f:9f:77:14:06: 86:bb:99:19