From: alsontra@hotmail.com
Date: Wed Feb 04 2004 - 19:04:35 GMT-3
I'm still not absolutely positive, but.... The CCO says "tunnel mode is
GRE IP by default" and therefore it would stand to reason that I shouldn't
have to use the tunnel mode command if I'm using GRE ip encapsulation. None
the less, when I specify it everything works.
CCO reference, under the section that entitled "Configuring the Access
Router" -http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122
cgcr/fipr_c/ipcpt3/1cfmulti.htm#1001652
Thanks,
Alsontra
----- Original Message -----
From: "Michael Snyder" <msnyder@revolutioncomputer.com>
To: <ccielab@groupstudy.com>
Cc: <alsontra@hotmail.com>
Sent: Wednesday, February 04, 2004 6:27 AM
Subject: RE: IP GRE Tunnels
> To answer the other question.
>
> GRE doesn't equal IPIP. See below.
>
> Assigned Internet Protocol Numbers
>
> Decimal Keyword Protocol References
> ------- ------- -------- ----------
> 0 HOPOPT IPv6 Hop-by-Hop Option [RFC1883]
> 1 ICMP Internet Control Message [RFC792]
> 2 IGMP Internet Group Management [RFC1112]
> 3 GGP Gateway-to-Gateway [RFC823]
> 4 IP IP in IP (encapsulation) [RFC2003]
> 5 ST Stream [RFC1190,RFC1819]
> 6 TCP Transmission Control [RFC793]
> 7 CBT CBT [Ballardie]
> 8 EGP Exterior Gateway Protocol [RFC888,DLM1]
> 9 IGP any private interior gateway [IANA]
> (used by Cisco for their IGRP)
> 10 BBN-RCC-MON BBN RCC Monitoring [SGC]
> 11 NVP-II Network Voice Protocol [RFC741,SC3]
> 12 PUP PUP [PUP,XEROX]
> 13 ARGUS ARGUS [RWS4]
> 14 EMCON EMCON [BN7]
> 15 XNET Cross Net Debugger [IEN158,JFH2]
> 16 CHAOS Chaos [NC3]
> 17 UDP User Datagram [RFC768,JBP]
> 18 MUX Multiplexing [IEN90,JBP]
> 19 DCN-MEAS DCN Measurement Subsystems [DLM1]
> 20 HMP Host Monitoring [RFC869,RH6]
> 21 PRM Packet Radio Measurement [ZSU]
> 22 XNS-IDP XEROX NS IDP [ETHERNET,XEROX]
> 23 TRUNK-1 Trunk-1 [BWB6]
> 24 TRUNK-2 Trunk-2 [BWB6]
> 25 LEAF-1 Leaf-1 [BWB6]
> 26 LEAF-2 Leaf-2 [BWB6]
> 27 RDP Reliable Data Protocol [RFC908,RH6]
> 28 IRTP Internet Reliable Transaction [RFC938,TXM]
> 29 ISO-TP4 ISO Transport Protocol Class 4 [RFC905,RC77]
> 30 NETBLT Bulk Data Transfer Protocol [RFC969,DDC1]
> 31 MFE-NSP MFE Network Services Protocol [MFENET,BCH2]
> 32 MERIT-INP MERIT Internodal Protocol [HWB]
> 33 SEP Sequential Exchange Protocol [JC120]
> 34 3PC Third Party Connect Protocol [SAF3]
> 35 IDPR Inter-Domain Policy Routing Protocol [MXS1]
> 36 XTP XTP [GXC]
> 37 DDP Datagram Delivery Protocol [WXC]
> 38 IDPR-CMTP IDPR Control Message Transport Proto [MXS1]
> 39 TP++ TP++ Transport Protocol [DXF]
> 40 IL IL Transport Protocol [Presotto]
> 41 IPv6 Ipv6 [Deering]
> 42 SDRP Source Demand Routing Protocol [DXE1]
> 43 IPv6-Route Routing Header for IPv6 [Deering]
> 44 IPv6-Frag Fragment Header for IPv6 [Deering]
> 45 IDRP Inter-Domain Routing Protocol [Sue Hares]
> 46 RSVP Reservation Protocol [Bob Braden]
> 47 GRE General Routing Encapsulation [Tony Li]
> 48 MHRP Mobile Host Routing Protocol[David Johnson]
> 49 BNA BNA [Gary Salamon]
> 50 ESP Encap Security Payload for IPv6 [RFC2406]
> 51 AH Authentication Header for IPv6 [RFC2402]
> 52 I-NLSP Integrated Net Layer Security TUBA [GLENN]
> 53 SWIPE IP with Encryption [JI6]
> 54 NARP NBMA Address Resolution Protocol [RFC1735]
> 55 MOBILE IP Mobility [Perkins]
> 56 TLSP Transport Layer Security Protocol [Oberg]
> using Kryptonet key management
> 57 SKIP SKIP [Markson]
> 58 IPv6-ICMP ICMP for IPv6 [RFC1883]
> 59 IPv6-NoNxt No Next Header for IPv6 [RFC1883]
> 60 IPv6-Opts Destination Options for IPv6 [RFC1883]
> 61 any host internal protocol [IANA]
> 62 CFTP CFTP [CFTP,HCF2]
> 63 any local network [IANA]
> 64 SAT-EXPAK SATNET and Backroom EXPAK [SHB]
> 65 KRYPTOLAN Kryptolan [PXL1]
> 66 RVD MIT Remote Virtual Disk Protocol [MBG]
> 67 IPPC Internet Pluribus Packet Core [SHB]
> 68 any distributed file system [IANA]
> 69 SAT-MON SATNET Monitoring [SHB]
> 70 VISA VISA Protocol [GXT1]
> 71 IPCV Internet Packet Core Utility [SHB]
> 72 CPNX Computer Protocol Network Executive [DXM2]
> 73 CPHB Computer Protocol Heart Beat [DXM2]
> 74 WSN Wang Span Network [VXD]
> 75 PVP Packet Video Protocol [SC3]
> 76 BR-SAT-MON Backroom SATNET Monitoring [SHB]
> 77 SUN-ND SUN ND PROTOCOL-Temporary [WM3]
> 78 WB-MON WIDEBAND Monitoring [SHB]
> 79 WB-EXPAK WIDEBAND EXPAK [SHB]
> 80 ISO-IP ISO Internet Protocol [MTR]
> 81 VMTP VMTP [DRC3]
> 82 SECURE-VMTP SECURE-VMTP [DRC3]
> 83 VINES VINES [BXH]
> 84 TTP TTP [JXS]
> 85 NSFNET-IGP NSFNET-IGP [HWB]
> 86 DGP Dissimilar Gateway Protocol [DGP,ML109]
> 87 TCF TCF [GAL5]
> 88 EIGRP EIGRP [CISCO,GXS]
> 89 OSPFIGP OSPFIGP [RFC1583,JTM4]
> 90 Sprite-RPC Sprite RPC Protocol [SPRITE,BXW]
> 91 LARP Locus Address Resolution Protocol [BXH]
> 92 MTP Multicast Transport Protocol [SXA]
> 93 AX.25 AX.25 Frames [BK29]
>
> 94 IPIP IP-within-IP Encapsulation Protocol [JI6]
> 95 MICP Mobile Internetworking Control Pro. [JI6]
> 96 SCC-SP Semaphore Communications Sec. Pro. [HXH]
> 97 ETHERIP Ethernet-within-IP Encapsulation [RFC3378]
> 98 ENCAP Encapsulation Header [RFC1241,RXB3]
> 99 any private encryption scheme [IANA]
> 100 GMTP GMTP [RXB5]
> 101 IFMP Ipsilon Flow Management Protocol [Hinden]
> 102 PNNI PNNI over IP [Callon]
> 103 PIM Protocol Independent Multicast [Farinacci]
> 104 ARIS ARIS [Feldman]
> 105 SCPS SCPS [Durst]
> 106 QNX QNX [Hunter]
> 107 A/N Active Networks [Braden]
> 108 IPComp IP Payload Compression Protocol [RFC2393]
> 109 SNP Sitara Networks Protocol [Sridhar]
> 110 Compaq-Peer Compaq Peer Protocol [Volpe]
> 111 IPX-in-IP IPX in IP [Lee]
> 112 VRRP Virtual Router Redundancy Protocol [Hinden]
> 113 PGM PGM Reliable Transport Protocol [Speakman]
> 114 any 0-hop protocol [IANA]
> 115 L2TP Layer Two Tunneling Protocol [Aboba]
> 116 DDX D-II Data Exchange (DDX) [Worley]
> 117 IATP Interactive Agent Transfer Protocol [Murphy]
> 118 STP Schedule Transfer Protocol [JMP]
> 119 SRP SpectraLink Radio Protocol [Hamilton]
> 120 UTI UTI [Lothberg]
> 121 SMP Simple Message Protocol [Ekblad]
> 122 SM SM [Crowcroft]
> 123 PTP Performance Transparency Protocol [Welzl]
> 124 ISIS over IPv4 [Przygienda]
> 125 FIRE [Partridge]
> 126 CRTP Combat Radio Transport Protocol [Sautter]
> 127 CRUDP Combat Radio User Datagram [Sautter]
> 128 SSCOPMCE [Waber]
> 129 IPLT [Hollbach]
> 130 SPS Secure Packet Shield [McIntosh]
> 131 PIPE Private IP Encapsulation within IP [Petri]
> 132 SCTP Stream Control Transmission Protocol [Stewart]
> 133 FC Fibre Channel [Rajagopal]
> 134 RSVP-E2E-IGNORE [RFC3175]
> 135 Mobility Header
> [RFC-ietf-mobileip-ipv6-24.txt]
> 136-252 Unassigned [IANA]
> 253 Use for experimentation and testing [RFC3692]
> 254 Use for experimentation and testing [RFC3692]
> 255 Reserved [IANA]
>
>
>
>
> -----Original Message-----
> From: alsontra@hotmail.com [mailto:alsontra@hotmail.com]
> Sent: Wednesday, February 04, 2004 1:00 AM
> To: ccielab@groupstudy.com
> Subject: Re: IP GRE Tunnels
>
> Router2's config is posted below. The configs are straight forward.
> There
> are no access-list, route-maps, etc. R2 simply runs EIGRP to provide the
> underling connectivity for the tunnel between R5 and SW1.
>
> As soon as I typed "tunnel mode ipip", I was able to ping the local
> interface. There is one thing I neglected to mention. R2 is running IOS
> 11.2
> and R5 and SW1 are running 12.2. Surly, thats not causing the problem?
> In an
> event, the tunnel mode command seem to fix all problems. All devices are
> ping-able and seem stable. (spent 2 1/2 hours working this problem along
> side a multicast scenario and I know the CCO logical interface
> configuration
> URL by heart.) :-)
>
>
> R2_CONFIG
This archive was generated by hypermail 2.1.4 : Fri Mar 05 2004 - 07:13:46 GMT-3