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- みがね みおか
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1 TCP/IP 1
2 IP 2
3 IP IP IP CIDR JPNIC IP
4 [ 1] whois [ 2] JPNIC 4
5 2 JPNIC 5
6 6
7 JP JPNIC JPRS JaPan Registry Service JPRS 7
8 8
9 TCP/IP -Unix - (1) (2) (3) (4) (5) DNS (6) (7) WWW (8) 9
10 Name IP Address ; ifconfig Name IP Address DNS Host Table (/etc/hosts) DNS (/etc/resolv.conf); named ; sendmail DHCP ; dhcpc dhcpd ; lp lpd 10
11 Hostname IP address Subnetmask Default gateway Broadcast address Domain name Name servers Routing protocol Mail server Mail relay Print server File server 11
12 TCP/IP (1) (2) (3) (4) (5) DNS (6) (7) WWW (8) 12
13 kernel configuration file ; BSD UNIX kernel /usr/src/sys/i386/conf/generic # config GENERIC #cd/usr/src/sys/compile/generic # make depend # make # make install 13
14 TCP/IP (1) (2) (3) (4) (5) DNS (6) (7) WWW (8) 14
15 Interface Configuration ifconfig interface-name IP-address netmask ex. ifconfig le netmask (1) interface-name (2) IP-Address (3) netmask (4) Broadcast Address 15
16 Interface Configuration % ifconfig le0 le0: flags=863<up,broadcast,notrailers,running,multicast> mtu 1500 inet netmask ffff0000 broadcast % ifconfig -a 16
17 Interface Configuration ; netstat -i - Name ; interface name - Mtu ; link MTU size - Net/Dest ; Network Address ( ) p2p IP - Address ; assigned IP address - Ipkts ; received packets - Ierrs ; error packets to be received - Opkts ; output packets - Oerrs ; error packets to be sent - Collis ; Ethernet collision - Queue ; 17
18 Interface Configuration % netstat -ni Name Mtu Net/Dest Address Ipkts Ierrs Opkts Oerrs Collis Queue le lo ppp
19 TCP/IP (1) (2) (3) (4) (5) DNS (6) (7) WWW (8) 19
20 (1) IP Loop-Back (2) (static routing) Gateway(router) (3) (dynamic routing) Gateway(router) 20
21 IGP EGP Routing Domain EGP Routing Domain - A Routing Domain IGP Routing Domain - B Border Router IGP = Interior Gateway Protocol EGP = Exterior Gateway Protocol Routing Domain - C 21
22 Zebra FreeBSD/NetBSD ports/package zebrad, ripngd, ospf6d Cisco 22
23 TCP/IP (1) (2) (3) (4) (5) DNS (6) (7) WWW (8) 23
24 DNS named configuration files /etc/named.boot ; domain DB /etc/named.ca ; root name server (/etc/named.root, /etc/root.ca) /etc/named.local ; name/domain /etc/named.hosts ; zone file ( ) /etc/named.rev ; zone file ( ) 24
25 TCP/IP (1) (2) (3) (4) (5) DNS (6) (i) DHCP (ii) Mail (iii) FTP (iv) SAMBA (7) WWW (8) 25
26 DHCP DNS DHCP 26
27 TCP/IP (1) (2) (3) (4) (5) DNS (6) (i) DHCP (ii) Mail (iii) FTP (iv) SAMBA (7) (8) WWW 27
28 SMTP (Sendmail etc.) POP IMAP 28
29 SMTP SMTP POP/IMAP 29
30 sendmail - sendmail sendmail # gzip -d sendmail tar.gz # tar -xvf sendmail tar # cd sendmail # sh makesendmail Configuration: os=linux, rel=2.0.30, rbase=2, rroot=2.0, arch=i486, sfx= Creating obj.inux i486 using makefile.linux ( ) groff -Tascii -mandoc sendmail.8 > sendmail.0 # cd obj.linux i486 # mkdir /var/spool/mqueue # chmod 700 /var/spool/mqueue #./makesendmail install # kill -HUP head -1 /var/run/sendmail.pid 30
31 sendmail sendmail (sendmail.cf) sendmail.cf cf : sendmail CF : ftp://ftp.kyoto.wide.ad.jp/pub/mail/cf/ 31
32 /etc/inetd.conf Mail Service -POP/IMAP - pop3 stream imap stream tcp nowait root /etc/pop3d pop3d tcp nowait root /usr/sbin/imapd imapd /etc/services pop3 110/tcp # Post Office Version 3 imap 143/tcp # IMAP version 4 32
33 TCP/IP (1) (2) (3) (4) (5) DNS (6) (i) DHCP (ii) Mail (iii) FTP (iv) SAMBA (7) (8) WWW 33
34 FTP (i) anonymous (ii) user oriented TCP Port Number = 21 /etc/inetd.config FTP ftp stream tcp nowait root /usr/etc/ftpd ftpd -X (*) -X -l ; -d ; syslog -t seconds -T seconds ; ftp -u permission ; UNIX Default
35 TCP/IP (1) (2) (3) (4) (5) DNS (6) (i) DHCP (ii) Mail (iii) FTP (iv) SAMBA (7) WWW (8) 35
36 TCP/IP (1) (2) (3) (4) (5) DNS (6) (7) WWW (8) 36
37 WWW WWW(World-wide Web) HTTP(Hyper Text Transfer Protocol) apache WWW httpd.conf srm.conf access.conf 37
38 TCP/IP (1) (2) (3) (4) (5) DNS (6) (7) WWW (8) 38
39 Web FTP (smurfing) Web 39
40 Web FTP CGI finger telnet NFS (statd) DNS (named) IMAP POP and more 40
41 Portscan ( ) (sendmail, INN, phf, imap, pop, statd, named...) /etc/passwd OS root 41
42 Buffer Overflow ( ) = 42
43 VBS (Visual Basic Script) VBS VBS ( ) Outlook ( 100 ) 43
44 44
45 Subject.VBS Virus Microsoft Outlook Outlook 2000 (SR1) VBS 45
46 2001/7 Code Red Worm Windows NT/2000 IIS + Index Server /Services Index Server ISAPI Code Red Code Red II II ( ) 46
47 Code Red (II) 47
48 Code Red Index Server(Services) reboot IP Scan IP Web ( Windows ) 48
49 49 Code Red ( =1 19 )
50 Code Red 50
51 1) Worm IDS 51
52 52
53 SPAM 53
54 ( ) ( ) UNIX, Windows, Macintosh 54
55 55
56 NAT H.323 ICQ IDS( ) 56
57 1Gbps IDS ( ) Windows Linux < > 57
58 SSH UNIX, Windows Macintosh Remote Access VPN (IPsec) VPN IPsec Windows Macintosh OS IPsec APOP SSL-POP/SSL-IMAP POP before SMTP WebMail 58
59 Troubleshooting & Monitoring 59
60 Approaching a Problem TIPS; - - -? + Application? +? +?
61 Approaching a Problem ( ) TIPS; - (Firewall). ping, traceroute, ICMP_error - Error Message - (e.g., FAQ) - (e.g., cable, plug) 61
62 Diagnostic Tools Lap-Top PC - ifconfig; Interface Configuration - arp; ARP-table information - netstat ; routing information - ping ; reachability/connectivity - nslookup ; DNS information - dig ; DNS information - traceroute ; routing path - snoop ; packet trace 62
63 Troubleshooting & Monitoring (1) Diagnostic Tools (2) Testing Basic Connectivity (3) Troubleshooting Network Access (4) Checking Routing and Name Service (5) Analyzing Protocol Problem (6) SNMP; Simple Network Management Protocol 63
64 Connectivity Check ; ping ping host [packet_size] [count] - Unknown host ; DNS nslookup, dig - Network unreachable ; Routing Protocol traceroute, netstat - No Answer ; Routing Protocol Interface traceroute, netstat, ifconfig 64
65 Connectivity Check ; ping ping host [packet_size] [count] # ping -s ns.uu.net 56 5 PING ns.uu.net: 56 data bytes 64 bytes from ns.uu.net ( ): icmp_seq=0. Time=32.8 ms 64 bytes from ns.uu.net ( ): icmp_seq=1. Time=15.3 ms 64 bytes from ns.uu.net ( ): icmp_seq=2. Time=13.1 ms 64 bytes from ns.uu.net ( ): icmp_seq=3. Time=32.4 ms 64 bytes from ns.uu.net ( ): icmp_seq=4. Time=28.1 ms ----ns.uu.net PING Statistic packets transmitted, 5 packets received, 0% packet loss round-trip (ms) min/avg/max = 13.1/24.3/
66 Troubleshooting & Monitoring (1) Diagnostic Tools (2) Testing Basic Connectivity (3) Troubleshooting Network Access (4) Checking Routing and Name Service (5) Analyzing Protocol Problem (6) SNMP; Simple Network Management Protocol 66
67 Troubleshooting Network Access ifconfig command # ifconfig le0 le0: flags=863<up,broadcast,notrailers,running, MULTICAST> mtu 1500 inet netmask ffffff00 broadcast arp command # arp -a Net to Media Table Device IP Address Mask Flags Phys Addr le0 peanut.nut.com :00:20:05:21:33 le0 pecan.nut.com :00:0c:e0:80:b1 le0 almond.nut.com SP 08:00:20:22:fd:51 le0 BASE-ADDRESS.MCAST.NET SM 01:00:5e:00:00:00 67
68 Troubleshooting Network Access ; IP_Address MAC_Address => ARP (20 ) # arp -d host_name # arp -s host_name MAC_address 68
69 Troubleshooting Network Access netstat command # netstar -i Name Mtu Net/Dest Address Ipkts Ierrs Opkts Oerrs Collis Queue le nuts.com almond le loopback localhost Too many Collisions Dividing Ethernet (i) Switch (ii) Router 69
70 Troubleshooting & Monitoring (1) Diagnostic Tools (2) Testing Basic Connectivity (3) Troubleshooting Network Access (4) Checking Routing and Name Service (5) Analyzing Protocol Problem (6) SNMP; Simple Network Management Protocol 70
71 Checking Routing netstat command (-rn option) % netstat -rn Routing tables Destination Gateway Flags Refcnt Use Interface UH lo0 default UG U le UG le UG le UG le0 % netstat -rn grep UG le0 71
72 Checking Routing ( ) % ping -s sunsite.une.edu 56 2 (*) sunsite.une.edu= PING sunsite.unc.edu: 56 data bytes sendto: Network is unreachable ping: wrote sunsite.une.edu 64 chars, ret=-1 sendto: Network is unreachable ping: wrote sunsite.une.edu 64 chars, ret= sunsite.une.edu PING Statistics packets transmitted, 0 packet received, 100% packet loss % netstat -rn grep <= check route for % (*) no response... % netstat -rn grep def <= check default route % default UG le default router ( ) (1)default router Static Dynamic routing 72
73 Checking Routing ( ) Static route ; route add % route add Dynamic route ; routing process check % ps cat /etc/gated.pid PID TT STAT TIME COMMAND 27711? S 304:59 gated -tep /etc/log/gated/log 73
74 Checking Routing; traceroute traceroute command % traceroute da.internic.net traceroute to ds.internic.net ( ),30 hops max, 40 bytes packtes 1 gw-55.nuts.com ( ) 0.95ms 0.91ms 0.91ms ( ) 1.51ms 1.33ms 1.29ms 3 gw225.nuts.com ( ) 4.13ms 1.94ms 2.20ms ( ) 52.90ms 81.19ms 58.09ms 5 washdc1-br2.bbnplanet.net ( ) 6.5ms 5.8ms 5.88ms 6 nyc1-br1.bbnplanet.net ( ) 13.24ms 12.71ms 12.96ms 7 nyc1-br2.bbnplanet.net ( ) 14.64ms 13.32ms 12.21ms 8 cambridge1-br1.bbnplanet.net ( ) 28.84ms 27.78ms 23.56ms 9 cambridge1-crl4.bbnplanet.net ( ) 19.9ms 24.7ms 22.3ms 10 attbcstoll.bbnplanet.net ( ) 34.31ms 36.63ms 32.32ms 11 ds0.internic.net ( ) 33.19ms 33.34ms *... 9 * * * 10 * * * 6 nyc1-br1.bbnplanet.net ( ) 13.24ms 12.71ms 12.96ms 7 nyc1-br2.bbnplanet.net ( ) 14.64ms 13.32ms 12.21ms 8 nyc1-br1.bbnplanet.net ( ) 11.21ms 10.81ms 10.96ms 9 nyc1-br2.bbnplanet.net ( ) 14.14ms 12.32ms 14.23ms : 74
75 Checking Name Service nslookup / dig Command - Remote domain Authoritative Server - Remote host - Remote zone % nslookup Default Server: almond nuts.com Address: > set type=ns > foo.edu. Server: almond.nuts.com Address: foo.edu nameserver = gerbil.foo.edu foo.edu nameserver = red.big.com foo.edu nameserver = shrew.foo.edu gerbil.foo.edu inet address = red.big.com inet address = shrew.foo.edu inet address = > set type=any > server gerbil.foo.edu Default Server: gerbil.foo.edu Address:
76 Checking Name Service ( ) > hamster.foo.edu Server: gerbil.foo.edu Address: hamster.foo.edu inet address = > server red.big.com Default Server: red.big.com Address: > hamster.foo.edu Server: red.big.com Address: *** red.big.com can t find hamster.foo.edu: Non-existant domain hamster.foo.edu ( ) - gerbil.foo.edu - red.big.com :-( 76
77 Checking Name Service ( ) > server red.big.com Default Server: red.big.com Address: > set type=soa > foo.edu Server: red.big.com Address: gerbil.foo.edu foo.edu origin = gerbil.foo.edu mail addr = amanda.gerbil.foo.edu serial=10164, refresh=43200, retry=3600, expire= , min= > server gerbil.foo.edu Default Server: gerbil.foo.edu Address: > foo.edu Server: gerbil.foo.edu Address: Zone-file version ( serial ) foo.edu > exit origin = gerbil.foo.edu mail addr = amanda.gerbil.foo.edu serial=10164, refresh=43200, retry=3600, expire= , min=
78 Troubleshooting & Monitoring (1) Diagnostic Tools (2) Testing Basic Connectivity (3) Troubleshooting Network Access (4) Checking Routing and Name Service (5) Analyzing Protocol Problem tcpdump (6) SNMP; Simple Network Management Protocol 78
79 tcpdump Van Jacobson, Craig Leres, Steven McCanne (LBL; Lawrence Berkeley Lab.,UCB) BSD Packet Filter (BPF) man tcpdump, man bpf (1) Port=25 TCP Dump % tcpdump tcp port 25 (2) ICMP=0,8(echo request/reply) ICMP Dump % tcpdump icmp[0]!= 8 icmp[0]!= 0 79
80 tcpdump Implentation tcpdump tcpdump tcpdump TCP, UDP IP, ICMP, IGMP filter filter filter BPF driver copy of received pckts Device Driver copy of transmitted pckts < kernel > Physical Network (e.g., Ethernet) 80
81 1 (0.0 ) solaris > slip.discard: S 1:1(0) win 8760 <mss 1460> (DF) 2 (0.1016) slip.discard > solaris.33016: S 1:1(0) ack 1 win 4096 <mss 512> 3 (0.5290) solaris > slip.discard: P 1:513(512) ack 1 win 4096 <mss 512> 4 (0.0038) bsdi > solaris: icmp: slip unreachable - need to frag, mtu = 296 (DF) 5 (0.0259) solaris > slip.discard: F 513:513(0) ack 1 win 9216 (DF) 6 (0.0923) slip.discard > solaris.33016:. ack 1 win (0.3577) solaris > slip.discard: P 1:257(256) ack 1 win 9216 (DF) 8 (0.3290) slip.doscard > solaris.33016:. ack 257 win (0.3308) solaris > slip.discard: FP 257:513(256) ack 1 win 9216 (DF) 10 (0.3208) slip.discard > solaris.33016:. ack win (0.0422) slip.discard > solaris.33016: F 1:1(0) ack 514 win (0.1719) slip.discard > splaris.33016:. ack 2 win 9216 (DF) <mss 1460> <mss 296> solaris bsdi slip 512 B (DF) ICMP too big (mss 296) 81
82 Troubleshooting & Monitoring (1) Diagnostic Tools (2) Testing Basic Connectivity (3) Troubleshooting Network Access (4) Checking Routing and Name Service (5) Analyzing Protocol Problem (6) SNMP; Simple Network Management Protocol 82
83 SNMP ; RFC1157 Simple Network Management Protcol UDP port 161 / 162 Client/Server protocol - manager device being managed - agent NMS(Network Management Center) Request / Response protocol - requesting ; manager - responding ; agent Request Types - polling - trap-directed polling 83
84 SNMP Operation SNMP manager SNMP agent get-request get-response UDP port 161 get-next-request get-response UDP port 161 set-request get-response UDP port 161 UDP port 162 trap 84
85 SNMP SMI SMI (Structure of Management Information) ; RFC1155 / Managed object ; object identifier - Global unique name - Hierarchical name structure -ISO s ANS.1 (Abstract Syntax Notation One) format (*) ISO MIB (Management Information Base) = individual database of management information (i) Network maps (ii) Tabular data displays (iii) Filters (iv) Alarms 85
86 SMI Object Identifiers root ccitt(0) iso(1) joint-iso-ccit(2) org(3) dod(6) internet(1) <= directory(1) mgmt(2) experimental(3) private(4) mib(1) <= enterprise(1) system(1) interface(2) at(3) ip(4) icmp(5) tcp(6) udp(7)... 86
87 SNMP ANS.1 (1) udp ( ) IpAddress IpAddress ::= [APPLICATION 0] -- in network-byte order -- IMPLICIT OCTET STRING (SIZE(4)) (2) udp ( ) udpnoports udpnoports OBJECT-TYPE SYNTAX Counter ACCESS read-only STATUS mandatory DESCRIPTION The total number of received UDP datagrams for which there was no application at the destination port. ::={ udp 2} 87
88 88
89 TCP/IP 89
90 1 ( ) {gtld} {cctld+nld} SPAM 1 RFC 90
ｽﾗｲﾄﾞ ﾀｲﾄﾙなし
TCP/IP 1 UTP ISDN FDDI PPP ATM PPP over Ethernet 802.11b 2 TA CSU/DSU ATM ADSL CATV 3 4 MAC 5 FDDI 6 ? 7 ISDN ATM ADSL CATV 8 /ADSL/CATV 9 ATM 10 IP 11 IP IP IP CIDR JPNIC IP 1 4500 12 13 [ 1] whois [
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065763J ping ping pw ping % ping -c 5 pw193.cs.ie.u-ryukyu.ac.jp PING pw193.cs.ie.u-ryukyu.ac.jp ( ): 56 data bytes 64 bytes from
065763J 5 22 1 1 ping ping pw ping % ping -c 5 pw193.cs.ie.u-ryukyu.ac.jp PING pw193.cs.ie.u-ryukyu.ac.jp (133.13.49.193): 56 data bytes 64 bytes from 133.13.49.193: icmp_seq=0 ttl=62 time=2.628 ms 64
128 64 32 16 8bit 7bit 6bit 5bit 4bit 3bit 2bit 1bit 8 4 2 1 3.6m 4.5m 5.5m 6.4m Tokyo:3.6m 3.6m 4.5m 3.6m 5.5m 6.4m JCSAT-3 AI 3 Hub WIDE Internet 2Mbps VSAT point-to-point/multicst
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osamu@sfc.keio.ac.jp CNS 18 Web http://www.sfc.wide.ad.jp/~three/itbasic05/ 6/6 7/11 1 ls -la t04xxx student -rwxr-xrx three student - rwx r-x r-x Windows GUI UNIX Windows chmod CNS (755) (ug+x) % chmod
TCP/IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.3 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.4 2
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Japan Registry Service Co., Ltd. JPRS matuura@jprs.co.jp Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.1 TCP IP DNS Windows Internet Week 2002 [2002/12/17] Japan Registry Service
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ICMP 0466-XX-1395 t04000aa@sfc.keio.ac.jp 133.113.215.10 (ipv4) 2001:200:0:8803::53 (ipv6) (FQDN: Fully Qualified Domain Name) ( www.keio.ac.jp 131.113.215.10 /MAC ID 00:11:24:79:8e:82 Port Port = = Port
1 Linux UNIX-PC LAN. UNIX. LAN. UNIX. 1.1 UNIX LAN. 1.2 Linux PC Linux. 1.3 studenta odd kumabari studentb even kumabari studentc odd kumabari student
LAN 0000000000 6/6, 6/13, 6/20 1 Linux UNIX-PC LAN. UNIX. LAN. UNIX. 1.1 UNIX LAN. 1.2 Linux PC Linux. 1.3 studenta odd kumabari studentb even kumabari studentc odd kumabari studentd even kumabari 1: LAN
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IP 2010 10 1 1 IP (IP ) 2 IP IP 2.1 IP (IP ) 1 IP 2.2 (IP ) IP 2.3 DNS IP IP DNS DNS 3 (PC) PC PC PC Linux(ubuntu) PC TA 2 4 1,2 4.1 (Protocol) IP:Internet Protocol) 4.2 internet The Internet (internet)
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IP TCP IP ヘッダデータ部ヘッダデータ部ヘッダデータ部 Ethernet パケット Ethernet パケット Ethernet パケット IP(1) 0 8 16 24 31 () Version IHL () Time To Live () Identification () Type of Service ) Flags Protocol () Source Address IP) Destination
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IP TCP TCP/IP 1) TCP 2) TCPIP 3) IPLAN 4) IP パケット TCP パケット Ethernet パケット 発信元 送信先 ヘッダ 列番号 ポート番号 TCP パケットのデータ IP パケットのデータ 本当に送りたいデータ データ IP ヘッダデータ部ヘッダデータ部ヘッダデータ部 Ethernet パケット Ethernet パケット Ethernet パケット
2 PC [1], [2], [3] 2.1 OS 2.1 ifconfig 2.1 lo ifconfig -a 2.1 enp1s0, enx0090cce7c734, lo 3 enp1s0 enx0090cce7c734 PC 2.1 (eth0, eth1) PC 14
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$ ifconfig lo Link encap: inet : : inet6 : ::1/128 : UP LOOPBACK RUNNING MTU:65536 :1 RX :8 :0 :0 :0 :0 TX :8 :0 :0 :0 :0 (Collision
2 (1) (2)PC [1], [2], [3] 2.1 OS ifconfig OS 2.1 ifconfig ( ) ifconfig -a 2.1 PC PC eth0, eth1, lo 3 13 $ ifconfig lo Link encap: inet :127.0.0.1 :255.0.0.0 inet6 : ::1/128 : UP LOOPBACK RUNNING MTU:65536
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1 2011 5 11 lumeta internet mapping http://www.lumeta.com http://www.cheswick.com/ches/map/ 2 / 43 ( ) 3 / 43 (Kenjiro Cho) WIDE 1984 ( ) OS 1993 1996 ( ) (QoS ) 2001 ( ) 2004 ( ) QoS 4 / 43 (Internet
SRT/RTX/RT設定例集
Network Equipment Rev.6.03, Rev.7.00, Rev.7.01 Rev.8.01, Rev.8.02, Rev.8.03 Rev.9.00, Rev.10.00, Rev.10.01 2 3 4 5 6 1 2 3 1 2 3 7 RTX1000 RTX1000 8 help > help show command > show command console character
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... 3... 3... 3... 4... 6 VLAN... 6... 6 DHCP... 7... 7... 9... 9... 10... 12 R... 15... 15... 15 ARP... 18... 18 ARP... 18 DNS... 20... 20 DHCP/BOOTP... 21... 21 DHCP... 22 UDP... 23... 23... 23... 26...
第１回 ネットワークとは
第 6 回 IP 計算機ネットワーク 2 前回まで Ethernet LAN 内通信 MAC アドレス (32:43:55 : BA:F5:DE) IP アドレス ベンダ (OUI) NIC IP アドレス ( 187.45.147.154 ) network host 組織端末 IP アドレス : 187.45.147.154 どこの組織? どのネットワーク? ネットワークアドレス ネットワーク部
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... 2... 2... 2... 2 VLAN... 3... 3... 4... 4 ADD ADDRESS... 5 DELETE... 7 PING.... 8 SET... 10 SHOW... 11 CentreCOM FS900S 1.0.0 1 Internet Protocol 2 Telnet 1. 2. VLAN VLAN default ADD ADDRESS=192.168.10.5
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NTT TOP A WAN WAN VRRP NIC OSPF VRRP STP 1. IPv6 IPv6 2. 3. IPv6 1. IPv4 NAT IPv6 1. 2. (IPv4 ) NAT? Unique Local IPv6 Unicast Address /8 /48 /64 /128 7 1 40 16 64 ULA Global ID Interface ID Type Subnet
設定例集
REMOTE ROUTER 1999. 2. 2 YAMAHA NetWare Novell,Inc. INS 64 YAMAHA! M E M O 1 1 1.1 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 1 1.2 : : : : : : : : : : : : : : : : : : : : :
設定例集_Rev.8.03, Rev.9.00, Rev.10.01対応
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