IP Session
IP? IP Cisco IP IP IP IP
IP?
LAN Software Bluetooth,, 802.11
IP
IP
IP QoS IP Trust Domain (TD 1 ) TD 2 AR AR AP AP (MN)
(MN) IP IP
( ) (MR) IP LAN MR
(AP) IP 802.11
(AL) LAN/PAN 802.11, 802.15, Bluetooth, WAN GSM/UMTS, GPRS, CDMA, CDPD, EDGE, DSL,, IP
(AR) IP PPP QoS 2600, 3600, 7200, (PDSN) GPRS (GGSN) IP
Trusted Domain TD) IP IP IP
IP IP MN IP DNS
Cisco IP
: 3
CDMA 2000 2 3 R-P BSC/PCF VLR PDSN FA R-P A10/A11 MIP/GRE Cisco AAA SS7 AAA AAA IP IP HLR AAA HA ISP
LAN 802.11: 2 3 /
GPRS : 2 BTS BTS BSC SGSN SGSN (PLMN) Intranet GGSN (Cisco 7200 Cisco IOS ) (SNMP) DHCP DNS DNS (RADIUS) Cisco Cisco GGSN Cisco
IP
171.1.1.1 A 171.1.1.x B C D 171.1.x.x A 171.2.x.x D 171.1.1.x 171.x.x.x B?? A B C?? D 171.2.x.x 171.x.x.x B
IP IP Nomadic
IP Nomadicity A nomadic IP IP DHCP PPP hotspots,,
IP IP IP / IP
IP IP IP (TCP/UDP)
IP : Web, Telnet, FTP, Push-to-Talk,, VoIP, SNMP, Peer-to-Peer, IP / IP IP? IP IP
IP : VPN, Web, Telnet, FTP,, Xterm, VoIP, IP, NAT, PAT (TCP/UDP)?
IP IP
IP http://www.ietf.org/rfc/rfc3220.txt
IP HA FA CN (HA) (FA) [1 hop away max] (MN) Care of Address (CoA) [ ] (CN) (SA) [SPI/ ] ICMP (IRDP) [ ] (NAI) (RRQ) MN
IP (MN) IP :,, PDAs ( RRQ CoA) IP (HA) IP (FA) IP [ ] IP
IP?? (RRQ),? CoA IP
IP : MN CoA 171.68.69.24 140.31.2.1 171.68.69.1 B A 171.68.69.24 140.31.2.1 HA RRQ? A 171.68.69.24
IP [RRQ] IP / NAI HA ( ) CoA (Care of Address) ( ) (SPI/ ) UDP MD5 HMAC-MD5 (SBDMG)
RRQ ( ) / NAI( user@domain.com) (SPI/key) CoA (DHCP/PPP IPCP FA)
Dest Addr 255.255.255.255 Src Addr Interface Addr FA HA 1.1.1.7 FA HA ip irdp
Dest Addr 224.0.0.1 Src Addr Interface Addr FA HA 1.1.1.7 ip irdp multicast
Dest Addr MN Addr Src Addr Interface Addr FA HA MN 1.1.1.7 Src Addr MN Addr Dest Addr 224.0.0.2 1.1.1.7 MN 224.0.0.2 FA MN
RRQ FA HA MN 1.1.1.7 Src Addr MN Addr Src Port Random Dest Addr Interface Addr Dest Port 434 1.1.1.7 RRQ MN CoA RRQ
RRQ FA FA HA HA MN 1.1.1.7 Src Addr Interface Addr Src Port 434 Dest Addr HA Addr Dest Port 434 1.1.1.7 RRQ FA : HA RRQ
RRQ Dest Addr FA Dest Port 434 Src Addr Interface Addr Src Port 434 FA FA HA HA MN 1.1.1.7 HA MN MN Proxy ARP 1.1.1.7
RRQ Dest Addr MN Addr Dest Port Orig Port Src Addr Interface Addr Src Port 434 RRQ FA FA HA HA MN 1.1.1.7 FA MN MN RRQ 1.1.1.7
IP
Basic Concept MN CoA 171.68.69.24 140.31.2.1 171.68.69.1 B A 171.68.69.24 140.31.2.1 A 171.68.69.24
IP (FA) (HA) RFC 2003 2006, 3220 Cisco IOS 12.0(1)T 12.0(2)T IP plus ( s-, c7200-is-mz) 12.2(4)T
Cisco IP IP Cisco IP plus IOS
IP Cisco IOS IOS 12.2.(4)T Birdstep (GPRS, CDMA, 802.11b) W95, W2k, NT, [PocketPC, XP soon] http://www.cisco.com/warp/public/732/tech/ /ip/clients/ Lifix go! Windows 2000, Linux http://www.lifix.fi
FA CoA MN (IRDP)
FA Turn on mobile IP Router(config)#router mobile Tell the router that it is an FA Router(config)#ip mobile foreign-agent care-of <CoA> Turn on mobile IP for this interface Router(config-if)#ip mobile foreign-service Tell it to advertise it is an FA on interface Router(config-if)#ip irdp Informs MN clients of classless address mask Router(config-if)#ip mobile prefix-length
HA MN? MN SA (SPI/ )? MN (IRDP)
HA ( ) Turn on mobile IP Router(config)#router mobile Tell the router that it is an HA Router(config)#ip mobile home-agent Tell it which hosts are mobile Router(config)#ip mobile host lower [upper] {interface} Tell the HA the MN s SAs Router(config)#ip mobile secure host addr spi spi key string Tell it to advertise it is an HA on interface Router(config-if)#ip irdp Informs MN clients of classless address mask Router(config-if)#ip mobile prefix-length
MN! Stub ( show ip ) M 10.0.0.0/8? HA FA CEF!
HA ( ) Turn on mobile IP Router(config)#router mobile Tell the router that it is an HA Router(config)#ip mobile home-agent Tell it which hosts are mobile Router(config)#ip mobile host lower [upper] virtualnetwork addr mask [aaa [load-sa]] Add virtual network to forwarding table Router(Config)#ip mobile virtual-network addr mask Tell the HA the MN s SAs Router(config)#ip mobile secure host addr string Tell it to advertise it is an HA on interface spi spi key
IP Commands [no] aaa authorization ipmobile (tacacs+ radius)
AAA HA NVRAM RAM MN SA SA TACACS+ RADIUS
HA MN M 10.1.1.1/32 [3/1] via 134.79.1.3, 00:00:24, Tunnel0 MN ARP CEF (IPnIP GRE)
FA Visitor MN 2 Visitor RRQ MN IP
IP COA MN CoA
COA IP NAT
HA-MR MR HA-FA FA WAN WAN WAN
(SPI/ ) CoA ( FA)
Turn on mobile IP Router(config)#router mobile Tell the router that it is a Mobile Network Router(config)#ip mobile router Router(mobile-router)#address 20.0.4.1 255.255.255.0 Router(mobile-router)# home-agent 46.0.0.3 Define the SA for Mobile Networks to use in RRQ Router(config)#ip mobile secure home-agent addr spi spi key string Tell it that it can receive advertisements on this interface Router(config-if)#ip mobile router-service roam Tell it to solicit at regular intervals Router(config-if)#ip mobile router-service solicit
HA IP (SPI/ )
HA 10.1.1.4 (config)#ip - s 10.1.1.4 ( - s)# 20.0.0.0 255.255.255.0
Nomadic, 802.11, IP VoIP, push-to-talk, IP, /, Xterm/Telnet IP Cisco IOS IP 12.1(9), 12.2(7) 12.2(8)T Cisco
Networkers Sessions IP NSC-261 ACC-131 802.11 ACC-231 ACC-233 IP ACC-234
Cisco IP http://www.cisco.com/go/mobile_ip CDMA GPRS http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/ fmwire_c/mwcfbkov.htm http://www.cisco.com/warp/public/784/packet/jan01/ technology.html http://www.ietf.org/rfc/rfc2002.txt http://www.cisco.com/warp/public/cc/so/neso/gprs/gprs_ wp.htm LAN http://www.cisco.com/warp/public/cc/pd/witc/ao340ap/prodlit/airo_ov.htm
( ) IP The Unplugged, ISBN 0-13-856246-6 James D. Solomon Cisco IP http://www.cisco.com/go/mobile_ip IETF URL http://www.ietf.org/html.charters/mobileipcharter.html Microsoft Media Sense http://www.microsoft.com/windows2000/en/server/help/ sag_dhcp_und_autoconfiguration.htm
IP Session
Session NCS-161