Strongswan zu strongswan psk ikev1 site to site: Unterschied zwischen den Versionen

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=Config is the same on both sites=
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==ipsec.conf==
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===Erklärung===
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*[[ipsec.conf Erklärung]]
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===Datei===
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<pre>
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conn s2s
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    authby=secret
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    keyexchange=ikev1
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    left=10.82.227.12
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    leftid=10.82.227.12
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    leftsubnet=10.82.243.0/24
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    mobike=no
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    right=10.82.227.22
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    rightid=10.82.227.22
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    rightsubnet=10.82.244.0/24
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    ike=aes256-sha256-modp4096!
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    esp=aes256-sha256-modp4096!
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    auto=start
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</pre>
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 +
==ipsec.secrets==
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;ID Kombination mit Authentifizierungsmethodes
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10.82.227.12 10.82.227.22  : PSK "suxer"
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 +
=Handling=
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=Up=
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*ipsec up  s2s
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<pre>
 +
initiating Main Mode IKE_SA s2s[3] to 10.82.227.22
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generating ID_PROT request 0 [ SA V V V V V ]
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sending packet: from 10.82.227.12[500] to 10.82.227.22[500] (180 bytes)
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received packet: from 10.82.227.22[500] to 10.82.227.12[500] (160 bytes)
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parsed ID_PROT response 0 [ SA V V V V ]
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received XAuth vendor ID
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received DPD vendor ID
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received FRAGMENTATION vendor ID
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received NAT-T (RFC 3947) vendor ID
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selected proposal: IKE:AES_CBC_256/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/MODP_4096
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generating ID_PROT request 0 [ KE No NAT-D NAT-D ]
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sending packet: from 10.82.227.12[500] to 10.82.227.22[500] (652 bytes)
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received packet: from 10.82.227.22[500] to 10.82.227.12[500] (652 bytes)
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parsed ID_PROT response 0 [ KE No NAT-D NAT-D ]
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generating ID_PROT request 0 [ ID HASH N(INITIAL_CONTACT) ]
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sending packet: from 10.82.227.12[500] to 10.82.227.22[500] (108 bytes)
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received packet: from 10.82.227.22[500] to 10.82.227.12[500] (92 bytes)
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parsed ID_PROT response 0 [ ID HASH ]
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IKE_SA s2s[3] established between 10.82.227.12[10.82.227.12]...10.82.227.22[10.82.227.22]
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scheduling reauthentication in 10142s
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maximum IKE_SA lifetime 10682s
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generating QUICK_MODE request 1581114031 [ HASH SA No KE ID ID ]
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sending packet: from 10.82.227.12[500] to 10.82.227.22[500] (716 bytes)
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received packet: from 10.82.227.22[500] to 10.82.227.12[500] (716 bytes)
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parsed QUICK_MODE response 1581114031 [ HASH SA No KE ID ID ]
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selected proposal: ESP:AES_CBC_256/HMAC_SHA2_256_128/MODP_4096/NO_EXT_SEQ
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CHILD_SA s2s{3} established with SPIs c2c20b47_i c1f461d9_o and TS 10.82.243.0/24 === 10.82.244.0/24
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connection 's2s' established successfully
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</pre>
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=Down=
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*ipsec down s2s
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<pre>
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closing CHILD_SA s2s{3} with SPIs c2c20b47_i (0 bytes) c1f461d9_o (0 bytes) and TS 10.82.243.0/24 === 10.82.244.0/24
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sending DELETE for ESP CHILD_SA with SPI c2c20b47
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generating INFORMATIONAL_V1 request 2875265242 [ HASH D ]
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sending packet: from 10.82.227.12[500] to 10.82.227.22[500] (92 bytes)
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deleting IKE_SA s2s[3] between 10.82.227.12[10.82.227.12]...10.82.227.22[10.82.227.22]
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sending DELETE for IKE_SA s2s[3]
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generating INFORMATIONAL_V1 request 510142709 [ HASH D ]
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sending packet: from 10.82.227.12[500] to 10.82.227.22[500] (108 bytes)
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IKE_SA [3] closed successfully
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</pre>
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=Status=
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*ipsec status  s2s
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Security Associations (1 up, 0 connecting):
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          s2s[4]: ESTABLISHED 7 seconds ago, 10.82.227.12[10.82.227.12]...10.82.227.22[10.82.227.22]
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          s2s{4}:  INSTALLED, TUNNEL, reqid 1, ESP SPIs: cef198fc_i c4de821a_o
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          s2s{4}:  10.82.243.0/24 === 10.82.244.0/24
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=TCPDump der Verbindung=
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*tcpdump -ni eth0 port 500 or  esp
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;up
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<pre>
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tcpdump: verbose output suppressed, use -v[v]... for full protocol decode
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listening on eth0, link-type EN10MB (Ethernet), snapshot length 262144 bytes
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08:37:31.702968 IP 10.82.227.12.500 > 10.82.227.22.500: isakmp: phase 1 I ident
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08:37:31.707296 IP 10.82.227.22.500 > 10.82.227.12.500: isakmp: phase 1 R ident
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08:37:31.764500 IP 10.82.227.12.500 > 10.82.227.22.500: isakmp: phase 1 I ident
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08:37:31.888131 IP 10.82.227.22.500 > 10.82.227.12.500: isakmp: phase 1 R ident
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08:37:31.945758 IP 10.82.227.12.500 > 10.82.227.22.500: isakmp: phase 1 I ident[E]
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08:37:31.949075 IP 10.82.227.22.500 > 10.82.227.12.500: isakmp: phase 1 R ident[E]
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08:37:32.018782 IP 10.82.227.12.500 > 10.82.227.22.500: isakmp: phase 2/others I oakley-quick[E]
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08:37:32.128716 IP 10.82.227.22.500 > 10.82.227.12.500: isakmp: phase 2/others R oakley-quick[E]
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08:37:32.193586 IP 10.82.227.12.500 > 10.82.227.22.500: isakmp: phase 2/others I oakley-quick[E]
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</pre>
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down
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<pre>
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08:38:13.527180 IP 10.82.227.12.500 > 10.82.227.22.500: isakmp: phase 2/others I inf[E]
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08:38:13.527950 IP 10.82.227.12.500 > 10.82.227.22.500: isakmp: phase 2/others I inf[E]
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</pre>

Aktuelle Version vom 5. September 2022, 09:13 Uhr


Config is the same on both sites

ipsec.conf

Erklärung

Datei

conn s2s
     authby=secret
     keyexchange=ikev1
     left=10.82.227.12
     leftid=10.82.227.12
     leftsubnet=10.82.243.0/24
     mobike=no
     right=10.82.227.22
     rightid=10.82.227.22
     rightsubnet=10.82.244.0/24
     ike=aes256-sha256-modp4096!
     esp=aes256-sha256-modp4096!
     auto=start

ipsec.secrets

ID Kombination mit Authentifizierungsmethodes
10.82.227.12 10.82.227.22  : PSK "suxer"

Handling

Up

  • ipsec up s2s
initiating Main Mode IKE_SA s2s[3] to 10.82.227.22
generating ID_PROT request 0 [ SA V V V V V ]
sending packet: from 10.82.227.12[500] to 10.82.227.22[500] (180 bytes)
received packet: from 10.82.227.22[500] to 10.82.227.12[500] (160 bytes)
parsed ID_PROT response 0 [ SA V V V V ]
received XAuth vendor ID
received DPD vendor ID
received FRAGMENTATION vendor ID
received NAT-T (RFC 3947) vendor ID
selected proposal: IKE:AES_CBC_256/HMAC_SHA2_256_128/PRF_HMAC_SHA2_256/MODP_4096
generating ID_PROT request 0 [ KE No NAT-D NAT-D ]
sending packet: from 10.82.227.12[500] to 10.82.227.22[500] (652 bytes)
received packet: from 10.82.227.22[500] to 10.82.227.12[500] (652 bytes)
parsed ID_PROT response 0 [ KE No NAT-D NAT-D ]
generating ID_PROT request 0 [ ID HASH N(INITIAL_CONTACT) ]
sending packet: from 10.82.227.12[500] to 10.82.227.22[500] (108 bytes)
received packet: from 10.82.227.22[500] to 10.82.227.12[500] (92 bytes)
parsed ID_PROT response 0 [ ID HASH ]
IKE_SA s2s[3] established between 10.82.227.12[10.82.227.12]...10.82.227.22[10.82.227.22]
scheduling reauthentication in 10142s
maximum IKE_SA lifetime 10682s
generating QUICK_MODE request 1581114031 [ HASH SA No KE ID ID ]
sending packet: from 10.82.227.12[500] to 10.82.227.22[500] (716 bytes)
received packet: from 10.82.227.22[500] to 10.82.227.12[500] (716 bytes)
parsed QUICK_MODE response 1581114031 [ HASH SA No KE ID ID ]
selected proposal: ESP:AES_CBC_256/HMAC_SHA2_256_128/MODP_4096/NO_EXT_SEQ
CHILD_SA s2s{3} established with SPIs c2c20b47_i c1f461d9_o and TS 10.82.243.0/24 === 10.82.244.0/24
connection 's2s' established successfully

Down

  • ipsec down s2s
closing CHILD_SA s2s{3} with SPIs c2c20b47_i (0 bytes) c1f461d9_o (0 bytes) and TS 10.82.243.0/24 === 10.82.244.0/24
sending DELETE for ESP CHILD_SA with SPI c2c20b47
generating INFORMATIONAL_V1 request 2875265242 [ HASH D ]
sending packet: from 10.82.227.12[500] to 10.82.227.22[500] (92 bytes)
deleting IKE_SA s2s[3] between 10.82.227.12[10.82.227.12]...10.82.227.22[10.82.227.22]
sending DELETE for IKE_SA s2s[3]
generating INFORMATIONAL_V1 request 510142709 [ HASH D ]
sending packet: from 10.82.227.12[500] to 10.82.227.22[500] (108 bytes)
IKE_SA [3] closed successfully

Status

  • ipsec status s2s
Security Associations (1 up, 0 connecting):
         s2s[4]: ESTABLISHED 7 seconds ago, 10.82.227.12[10.82.227.12]...10.82.227.22[10.82.227.22]
         s2s{4}:  INSTALLED, TUNNEL, reqid 1, ESP SPIs: cef198fc_i c4de821a_o
         s2s{4}:   10.82.243.0/24 === 10.82.244.0/24

TCPDump der Verbindung

  • tcpdump -ni eth0 port 500 or esp
up
tcpdump: verbose output suppressed, use -v[v]... for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), snapshot length 262144 bytes
08:37:31.702968 IP 10.82.227.12.500 > 10.82.227.22.500: isakmp: phase 1 I ident
08:37:31.707296 IP 10.82.227.22.500 > 10.82.227.12.500: isakmp: phase 1 R ident
08:37:31.764500 IP 10.82.227.12.500 > 10.82.227.22.500: isakmp: phase 1 I ident
08:37:31.888131 IP 10.82.227.22.500 > 10.82.227.12.500: isakmp: phase 1 R ident
08:37:31.945758 IP 10.82.227.12.500 > 10.82.227.22.500: isakmp: phase 1 I ident[E]
08:37:31.949075 IP 10.82.227.22.500 > 10.82.227.12.500: isakmp: phase 1 R ident[E]
08:37:32.018782 IP 10.82.227.12.500 > 10.82.227.22.500: isakmp: phase 2/others I oakley-quick[E]
08:37:32.128716 IP 10.82.227.22.500 > 10.82.227.12.500: isakmp: phase 2/others R oakley-quick[E]
08:37:32.193586 IP 10.82.227.12.500 > 10.82.227.22.500: isakmp: phase 2/others I oakley-quick[E]

down 

08:38:13.527180 IP 10.82.227.12.500 > 10.82.227.22.500: isakmp: phase 2/others I inf[E]
08:38:13.527950 IP 10.82.227.12.500 > 10.82.227.22.500: isakmp: phase 2/others I inf[E]
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