続続続・IPsecをやってみる (NEC & FITELnet)

では次に、FITELnetとNEC

PC1 ---- F100 ---- IX2004 --- PC2

シリアルケーブル買ってきました。IX2004のために。
要は、モデムとつなぐときはストレート、PC同士はクロス、ということです。

あっさりできた。

FITEL#sho cry isa sa
[ 1] 100.0.0.2
<--> 100.0.0.1
 Main Mode UP pre-shared key DES MD5
Lifetime : 600secs
Current : 19secs,1kbytes
mcfg config-mode: off
mcfg addr: off
mcfg apl-version:
IKE Keepalive: dpd
ICMP Keepalive: off
release on addr-change: off

FITEL#sho cry isa policy
Protection suite priority [1]
authentication method : preshared key
encryption algorithm : DES - Data Encryption Standard (56 bit keys)
Diffie-Hellman Group : #1 (768 bit)
hash algorithm : Message Digest 5
lifetime : 600 seconds, no volume limit
Disabled frequency : 0

Default protection suite
authentication method : preshared key
encryption algorithm : DES - Data Encryption Standard (56 bit keys)
hash algorithm : Message Digest 5
Diffie-Hellman Group : #1 (768 bit)
lifetime : 1000 seconds, no volume limit


FITEL#sho running.cfg
!
! FITELnet-F100
! Firmware version: V02.07(02) 032307
!
ip route 0.0.0.0 0.0.0.0 100.0.0.2
!
access-list 1 permit 192.168.1.0 0.0.0.255
!
vpn enable
vpnlog enable
!
ipsec access-list 1 ipsec ip 192.168.1.0 0.0.0.255 192.168.2.0 0.0.0.255
ipsec access-list 64 bypass ip any any
ipsec transform-set P2-des-md5 esp-des esp-md5-hmac
!
service dhcp-server
!
hostname FITEL
!
ip dhcp pool lan1
exit
!
interface ewan 1
crypto map kyoten
ip address 100.0.0.1 255.255.255.0
ip nat inside source list 1 interface
exit
interface ewan 2
exit
interface lan 1
ip address 192.168.1.254 255.255.255.0
exit
!
!
crypto isakmp policy 1
authentication prekey
encryption des
group 1
hash md5
idtype-pre userfqdn
key ascii secret
lifetime 600
negotiation-mode main
peer-identity address 100.0.0.2
exit
crypto map kyoten 1
match address 1
set peer address 100.0.0.2
set transform-set P2-des-md5
exit
crypto security-association
exit
!
end





Router(config)# sho running-config
!
ip route 192.168.1.0/24 Tunnel0.0
ip access-list list1 permit ip src 192.168.2.0 0.0.0.255 dest 192.168.1.0 0.0.0.255
!
ike proposal ike-prop encryption des hash md5 lifetime 600
!
ike policy ike-policy peer 100.0.0.1 key secret ike-prop
!
ipsec autokey-map ipsec-policy list1 peer 100.0.0.1 default
ipsec local-id ipsec-policy 192.168.2.0/24
ipsec remote-id ipsec-policy 192.168.1.0/24
!
telnet-server ip enable
!
device FastEthernet0
!
device FastEthernet1
!
interface FastEthernet0.0
ip address 100.0.0.2/24
no shutdown
!
interface FastEthernet1.0
ip address 192.168.2.254/24
no shutdown
!
interface Loopback0.0
no ip address
!
interface Null0.0
no ip address
!
interface AutoTunnel0.0
no ip address
shutdown
!
interface Tunnel0.0
tunnel mode ipsec
ip unnumbered FastEthernet1.0
ipsec policy tunnel ipsec-policy out
no shutdown
Router(config)#
Router(config)# sho ike sa
ISAKMP SA - 1 configured, 1 created
Local address is 100.0.0.2
Remote address is 100.0.0.1
IKE policy name is ike-policy
Direction is responder
Initiator's cookie is 0xfc6bbe87ce000000
Responder's cookie is 0xba77d813c2ce6e0d
Exchange type is main mode
State is established
Authentication method is pre-shared
Encryption algorithm is des
Hash algorithm is md5
DH group is modp768, lifetime is 414 seconds
#ph1 success: 1, #ph1 failure: 0
#ph1 hash err: 0, #ph1 timeout: 0, #ph1 resend: 0
#ph2 success: 1, #ph2 failure: 0
#ph2 hash err: 0, #ph2 timeout: 0, #ph2 resend: 0
Router(config)#
Router(config)# sho ike statistics
Phase1 Statistics:
1 success, 0 failure, 0 hash errors
0 config errors, 0 timeout errors, 0 resend packet

Phase2 Statistics:
1 success, 0 failure, 0 request errors, 0 hash errors
0 config errors, 0 timeout errors, 0 resend packet

IKE Informations:
Notify message type
Rcvd: 0 invalid payload type, 0 doi not supported
0 situation not supported, 0 invalid cookie
0 invalid major version, 0 invalid minor version
0 invalid exchange type, 0 invalid flags, 0 invalid message id
0 invalid protocol id, 0 invalid spi, 0 invalid transform id
0 attributes not supported, 0 no proposal chosen
0 bad proposal syntax, 0 payload malformed
0 invalid key information, 0 invalid id information
0 invalid cert encoding, 0 invalid certificate
0 cert type unsupported, 0 invalid cert authority
0 invalid hash information, 0 authentication failed
0 invalid signature, 0 address notification
0 notify sa lifetime, 0 certificate unavailable
0 unsupported exchange type, 0 unequal payload lengths
0 connected
0 responder lifetime, 0 replay status, 1 initial contact
0 keepalive, 0 keepalive ack
0 unknown type
Sent: 0 invalid payload type, 0 doi not supported
0 situation not supported, 0 invalid cookie
0 invalid major version, 0 invalid minor version
0 invalid exchange type, 0 invalid flags, 0 invalid message id
0 invalid protocol id, 0 invalid spi, 0 invalid transform id
0 attributes not supported, 0 no proposal chosen
0 bad proposal syntax, 0 payload malformed
0 invalid key information, 0 invalid id information
0 invalid cert encoding, 0 invalid certificate
0 cert type unsupported, 0 invalid cert authority
0 invalid hash information, 0 authentication failed
0 invalid signature, 0 address notification
0 notify sa lifetime, 0 certificate unavailable
0 unsupported exchange type, 0 unequal payload lengths
0 connected
0 responder lifetime, 0 replay status, 0 initial contact
0 keepalive, 0 keepalive ack
0 unknown type
Delete protocol type
Rcvd: 0 isakmp, 0 ah, 0 esp
0 unknown type
Sent: 0 isakmp, 0 ah, 0 esp
0 unknown type
Router(config)#
sho ipsec sa
IPsec SA - 1 configured, 2 created
Interface is Tunnel0.0
Key policy map name is ipsec-policy
Tunnel mode, 4-over-4, autokey-map
Local address is 100.0.0.2
Remote address is 100.0.0.1
Outgoing interface is FastEthernet0.0
Interface MTU is 1446, path MTU is 1500
Inbound:
ESP, SPI is 0x9566dd14(2506546452)
Transform is ESP-DES-HMAC-MD5-96
Remaining lifetime is 393 seconds
Replay detection support is on
Outbound:
ESP, SPI is 0x3ae07975(987789685)
Transform is ESP-DES-HMAC-MD5-96
Remaining lifetime is 393 seconds
Replay detection support is on
Perfect forward secrecy is off
Router(config)#

というわけで・・・

ix2004,
FITELnet F100 x 3,
シリアルケーブル(クロス) for FITELnet、
シリアルケーブル(ストレート) for IX,
某ソフト registration・・・
Dynamipsインストール、
Catalyst引っ張り出し・・・

シリアルのストレートケーブルというのは、昔モデムに接続するときに使ったものである。多分、コンシューマ向け(?)のちっちゃいルータ(IX2004とか)は、それと同じケーブルでつなげるようにと、ストレートでつなぐようになっているのだろう。

一方、FITELnet F100はシリアルのリバース(クロス)ケーブルでつなぐ。
このケーブルは、PC同士をつないでデータ転送をするような時に使う。

私も昔、かってつないだような記憶がある。 「ある程度の大きなルータになると、PC扱いになるのでクロスでつなぐ・・・」というのは私の覚え方。

結線は

1 --- 7&8
2 --- 3
3 --- 2
4 --- 6
5 --- 5
6 --- 4
7&8 --- 1
フレーム --- フレーム

だとさ