※2017/12/07 カテゴリーにciscoを追加
Contents
はじめに
あんまり見かけなかったので。・・・あんまりやらないとは思いますが。
YAMAHAルータとciscoルータでのIPSecです。ネット上に思ったほど例を見なかったので載せてみました。
だけどpingが飛ぶところまでしか確認しておらず、
商用環境で実際に使ったことはありませんのであしからず。
検証用です！
このページは特に参考程度にとどめてください。というか同じベンダーで揃えましょう。
そのほうが夜ぐっすり寝れます。
参考サイト様
YAMAHA側はこちらを参照。パラメータ表はこのページの表を参考にさせていただきました。
cisco側はこちらを参照。
他ベンダー間のIPSecとしてこちらのサイト様も参考にさせていただきました。
構成図
パラメータ表
フェーズ1
| パラメータ | yamahaA | yamahaA_command | ciscoB | ciscoB_command | 備考 |
|---|---|---|---|---|---|
| 認証方式 | pre-shared-key | ipsec ike pre-shared-key 1 text yamaha | pre-shared-key | authentication pre-share | |
| 暗号アルゴリズム | 3des-cbc | ipsec ike encryption 1 3des-cbc | 3des | encr 3des | |
| ハッシュアルゴリズム | sha | ipsec ike hash 1 sha | sha | hash sha ※デフォルトなので消える | |
| DH(Diffie-Hellman)グループ | modp1024 | ipsec ike group 1 modp1024 | 2 | group 2 | ※modp1024=group 2 |
| ISAKMP SAの寿命 | 28800 | ipsec ike duration isakmp-sa 1 28800 | 28800 | lifetime 28800 | |
| 交換モード(exchange mode) | main | - | main | ？ | mainかaggressiveかYAMAHAは自動で切り替えてる？ |
| IDの種類 | ipsec ike local id | ipsec ike local id 1 1.1.1.0/24 | ？ | ？ | ※この設定がないとうまく行かず。ciscoのACLと対応しているのか？ |
| IDの種類 | ipsec ike remote id | ipsec ike remote id 1 2.2.2.0/24 | ？ | ？ | ※この設定がないとうまく行かず。ciscoのACLと対応しているのか？ |
フェーズ2
| パラメータ | yamahaA | yamahaA_command | ciscoB | ciscoB_command | 備考 |
|---|---|---|---|---|---|
| セキュリティプロトコル | esp | ipsec sa policy 101 1 esp 3des-cbc sha-hmac | esp | crypto ipsec transform-set IPSEC esp-3des esp-sha-hmac | |
| 暗号アルゴリズム | 3des-cbc | ipsec sa policy 101 1 esp 3des-cbc sha-hmac | esp-3des | crypto ipsec transform-set IPSEC esp-3des esp-sha-hmac | |
| 認証アルゴリズム | sha-hmac | ipsec sa policy 101 1 esp 3des-cbc sha-hmac | esp-sha-hmac | crypto ipsec transform-set IPSEC esp-3des esp-sha-hmac | |
| 通信モード | tunnel | ipsec tunnel 101 | tunnel | mode tunnel | |
| IPsec SAの寿命 | 3600 ※初期値は28800 | ipsec ike duration ipsec-sa 3600 | 3600 ※初期値は3600 | crypto ipsec security-association lifetime second | cisco側はデフォルト値のようで設定すると消える |
yamahaA (yamaha)
RTX1210 Rev.14.01.09
yamahaA config
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console lines infinity console prompt yamahaA ip route 2.2.2.0/24 gateway tunnel 1 ip lan1 address 1.1.1.254/24 ip lan2 address 192.168.0.1/24 tunnel select 1 ipsec tunnel 101 ipsec sa policy 101 1 esp 3des-cbc sha-hmac ipsec ike duration ipsec-sa 1 3600 ipsec ike duration isakmp-sa 1 28800 ipsec ike encryption 1 3des-cbc ipsec ike group 1 modp1024 ipsec ike hash 1 sha ipsec ike local address 1 192.168.0.1 ipsec ike local id 1 1.1.1.0/24 ipsec ike pre-shared-key 1 text yamaha ipsec ike remote address 1 192.168.0.2 ipsec ike remote id 1 2.2.2.0/24 ip tunnel tcp mss limit 1350 tunnel enable 1 ipsec use on ipsec auto refresh on |
yamahaA status
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yamahaA# show ipsec sa Total: isakmp:1 send:1 recv:1 sa sgw isakmp connection dir life[s] remote-id ---------------------------------------------------------------------------- 1 1 - isakmp - 28602 192.168.0.2 2 1 1 tun[0001]esp send 3404 192.168.0.2 3 1 1 tun[0001]esp recv 3404 192.168.0.2 yamahaA# show ipsec sa gateway 1 detail SA[1] 寿命: 28581秒 自分側の識別子: 192.168.0.1 相手側の識別子: 192.168.0.2 プロトコル: IKE アルゴリズム: 3DES-CBC, SHA-1, MODP 1024bit SPI: ca a3 46 96 1d 2b 8b 29 44 eb 66 50 85 30 82 d3 鍵 : 03 57 b4 2d 1c f2 3d 2f ---------------------------------------------------- SA[2] 寿命: 3383秒 自分側の識別子: 192.168.0.1 相手側の識別子: 192.168.0.2 送受信方向: 送信 プロトコル: ESP (モード: tunnel) アルゴリズム: 3DES-CBC (認証: HMAC-SHA) SPI: 9e 70 9c 9a 鍵 : 15 fb 35 b9 7d 80 dc c0 a1 96 d3 a5 fb 63 c5 cd ---------------------------------------------------- SA[3] 寿命: 3383秒 自分側の識別子: 192.168.0.1 相手側の識別子: 192.168.0.2 送受信方向: 受信 プロトコル: ESP (モード: tunnel) アルゴリズム: 3DES-CBC (認証: HMAC-SHA) SPI: c2 21 52 39 鍵 : 37 41 02 82 0f 2d 46 48 a9 30 bb ba 89 8a 7f be ---------------------------------------------------- |
ciscoB (cisco)
CISCO892-K9
Cisco IOS Software, C890 Software (C890-UNIVERSALK9-M), Version 15.3(3)M2
c890-universalk9-mz.153-3.M2.bin
ciscoB config
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ciscoB#show run Building configuration... Current configuration : 2030 bytes ! version 15.3 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname ciscoB ! boot-start-marker boot config flash:startup-config boot-end-marker ! aqm-register-fnf ! logging buffered 40960 ! no aaa new-model memory-size iomem 15 ! ! ! ! ! ! ! ! ! ! no ip domain lookup ip cef no ipv6 cef ! ! ! ! ! multilink bundle-name authenticated ! ! ! ! ! ! ! ! ! no spanning-tree vlan 1 ! redundancy ! ! ! ! ! ! ! crypto isakmp policy 1 encr 3des authentication pre-share group 2 lifetime 28800 crypto isakmp key yamaha address 192.168.0.1 ! ! crypto ipsec transform-set IPSEC esp-3des esp-sha-hmac mode tunnel ! ! ! crypto map TEST local-address GigabitEthernet0 crypto map TEST 1 ipsec-isakmp set peer 192.168.0.1 set transform-set IPSEC match address 100 ! ! ! ! ! interface BRI0 no ip address encapsulation hdlc shutdown isdn termination multidrop ! interface FastEthernet0 no ip address ! interface FastEthernet1 no ip address ! interface FastEthernet2 no ip address ! interface FastEthernet3 no ip address ! interface FastEthernet4 no ip address ! interface FastEthernet5 no ip address ! interface FastEthernet6 no ip address ! interface FastEthernet7 no ip address ! interface FastEthernet8 no ip address shutdown duplex auto speed auto ! interface GigabitEthernet0 ip address 192.168.0.2 255.255.255.0 duplex auto speed auto crypto map TEST ! interface Vlan1 ip address 2.2.2.254 255.255.255.0 ip tcp adjust-mss 1350 ! ip forward-protocol nd no ip http server no ip http secure-server ! ! ip route 1.1.1.0 255.255.255.0 192.168.0.1 ! ! ! access-list 100 permit ip 2.2.2.0 0.0.0.255 1.1.1.0 0.0.0.255 log ! control-plane ! ! ! mgcp behavior rsip-range tgcp-only mgcp behavior comedia-role none mgcp behavior comedia-check-media-src disable mgcp behavior comedia-sdp-force disable ! mgcp profile default ! ! ! ! ! ! line con 0 line aux 0 line vty 0 4 login transport input all ! ! end |
ciscoB status
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ciscoB#show ip route Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP a - application route + - replicated route, % - next hop override Gateway of last resort is not set 1.0.0.0/24 is subnetted, 1 subnets S 1.1.1.0 [1/0] via 192.168.0.1 2.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 2.2.2.0/24 is directly connected, Vlan1 L 2.2.2.254/32 is directly connected, Vlan1 192.168.0.0/24 is variably subnetted, 2 subnets, 2 masks C 192.168.0.0/24 is directly connected, GigabitEthernet0 L 192.168.0.2/32 is directly connected, GigabitEthernet0 ciscoB#show crypto isakmp sa IPv4 Crypto ISAKMP SA dst src state conn-id status 192.168.0.2 192.168.0.1 QM_IDLE 2001 ACTIVE IPv6 Crypto ISAKMP SA ciscoB#show crypto ipsec sa interface: GigabitEthernet0 Crypto map tag: TEST, local addr 192.168.0.2 protected vrf: (none) local ident (addr/mask/prot/port): (2.2.2.0/255.255.255.0/0/0) remote ident (addr/mask/prot/port): (1.1.1.0/255.255.255.0/0/0) current_peer 192.168.0.1 port 500 PERMIT, flags={origin_is_acl,} #pkts encaps: 237, #pkts encrypt: 237, #pkts digest: 237 #pkts decaps: 237, #pkts decrypt: 237, #pkts verify: 237 #pkts compressed: 0, #pkts decompressed: 0 #pkts not compressed: 0, #pkts compr. failed: 0 #pkts not decompressed: 0, #pkts decompress failed: 0 #send errors 0, #recv errors 0 local crypto endpt.: 192.168.0.2, remote crypto endpt.: 192.168.0.1 plaintext mtu 1446, path mtu 1500, ip mtu 1500, ip mtu idb GigabitEthernet0 current outbound spi: 0xC2215239(3256963641) PFS (Y/N): N, DH group: none inbound esp sas: spi: 0x9E709C9A(2658180250) transform: esp-3des esp-sha-hmac , in use settings ={Tunnel, } conn id: 1, flow_id: Onboard VPN:1, sibling_flags 80000040, crypto map: TEST sa timing: remaining key lifetime (k/sec): (4251096/3257) IV size: 8 bytes replay detection support: Y Status: ACTIVE(ACTIVE) inbound ah sas: inbound pcp sas: outbound esp sas: spi: 0xC2215239(3256963641) transform: esp-3des esp-sha-hmac , in use settings ={Tunnel, } conn id: 2, flow_id: Onboard VPN:2, sibling_flags 80000040, crypto map: TEST sa timing: remaining key lifetime (k/sec): (4251096/3257) IV size: 8 bytes replay detection support: Y Status: ACTIVE(ACTIVE) outbound ah sas: outbound pcp sas: ciscoB#show crypto isakmp policy Global IKE policy Protection suite of priority 1 encryption algorithm: Three key triple DES hash algorithm: Secure Hash Standard authentication method: Pre-Shared Key Diffie-Hellman group: #2 (1024 bit) lifetime: 28800 seconds, no volume limit ciscoB#show crypto ipsec transform-set Transform set default: { esp-aes esp-sha-hmac } will negotiate = { Transport, }, Transform set IPSEC: { esp-3des esp-sha-hmac } will negotiate = { Tunnel, }, |
エージング試験
12時間くらい1.1.1.1→2.2.2.2と2.2.2.2→1.1.1.1へお互いpingを打ち続けたところ、
それぞれ１秒のtimeoutが合計３、４発くらい発生していた。
この辺が許容できるならいいけど、許されないなら同じベンダーにしたほうがいい。
