One document matched: draft-ietf-magma-mrdssm-03.ps

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/F0 10/Courier-Bold@0 SF(Internet Engineering Task Force)72 85 Q
(MAGMA WG)198 E 216(INTERNET-DRAFT Isidor)72 98 R(Kouvelas/Cisco)6 E 180
(draft-ietf-magma-mrdssm-03.ps 17)72 111 R(June 2003)6 E
(Expires: December 2003)372 124 Q/F1 14/Times-Bold@0 SF
(Multicast Router Disco)146.012 149 Q -.14(ve)-.14 G
(ry SSM Range Option).14 E/F2 11/Times-Bold@0 SF
(Status of this Document)72 194 Q/F3 11/Times-Roman@0 SF(This document \
is an Internet-Draft and is in full conformance with all pro)72 210.6 Q
(visions of Section 10 of)-.165 E(RFC2026.)72 223.6 Q
(Internet-Drafts are w)72 249.6 Q
(orking documents of the Internet Engineering T)-.11 E(ask F)-.88 E
(orce \(IETF\), its areas,)-.165 E(and its w)72 262.6 Q(orking groups.)
-.11 E(Note that other groups may also distrib)5.5 E(ute w)-.22 E
(orking documents as)-.11 E(Internet-Drafts.)72 275.6 Q
(Internet-Drafts are draft documents v)72 301.6 Q
(alid for a maximum of six months and may be updated,)-.275 E
(replaced, or obsoleted by other documents at an)72 314.6 Q 2.75(yt)
-.165 G 2.75(ime. It)-2.75 F(is inappropriate to use Internet- Drafts)
2.75 E(as reference material or to cite them other than as "w)72 327.6 Q
(ork in progress.")-.11 E
(The list of current Internet-Drafts can be accessed at http://www)72
353.6 Q(.ietf.or)-.715 E(g/ietf/1id-abstracts.txt)-.198 E
(The list of Internet-Draft Shado)72 379.6 Q 2.75(wD)-.275 G
(irectories can be accessed at http://www)-2.75 E(.ietf.or)-.715 E
(g/shado)-.198 E -.715(w.)-.275 G(html.).715 E
(This document is a product of the IETF MA)72 405.6 Q(GMA WG.)-.44 E
(Comments should be addressed to the)5.5 E(authors, or the WG')72 418.6
Q 2.75(sm)-.605 G(ailing list at magma@ietf.or)-2.75 E(g.)-.198 E F2
(Abstract)267.534 437.6 Q F3
(This document de\214nes the Multicast Router Disco)97 460.2 Q -.165(ve)
-.165 G(ry protocol option for adv).165 E(ertising)-.165 E(the con\214g\
ured IPv4 Source Speci\214c Multicast destination address range.)97
473.2 Q -.385(Ko)72 769 S(uv).385 E 351.458(elas [P)-.165 F(age 1])-.165
E EP
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Q/F2 14/Times-Bold@0 SF(Intr)5.5 E(oduction)-.252 E F0 -.44(Wi)97 101.6
S(th current multicast deplo).44 E(yment in the Internet, dif)-.11 E
(ferent multicast routing protocols)-.275 E(coe)72 114.6 Q(xist and ope\
rate under separate parts of the multicast address space [1]. Multicast\
 routers are)-.165 E(consistently con\214gured with information that ma\
ps speci\214c multicast destination address ranges)72 127.6 Q
(to multicast routing protocols. P)72 140.6 Q
(art of this con\214guration describes the subset of the address space)
-.165 E(that is used by source-speci\214c multicast \(SSM\) [3]. Under \
current deplo)72 153.6 Q(yment, the ability to)-.11 E -.165(ex)72 166.6
S(tend the IPv4 SSM destination address range is used to de\214ne SSM d\
estination addresses that).165 E(operate within administrati)72 179.6 Q
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(Note that the SSM range for IPv6 is well)5.5 E(de\214ned for all v)72
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(-link bases is not required.)-.22 E(There are currently tw)97 222.2 Q
2.75(or)-.11 G(equirements for a router to adv)-2.75 E
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235.2 Q 7.15<834f>72 251.8 S 2.75(nl)-7.15 G
(inks with multiple multicast routers, adv)-2.75 E
(ertisement of the con\214gured SSM range by each)-.165 E
(router can be used to disco)83 264.8 Q -.165(ve)-.165 G 2.75(rm).165 G
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(rs can use the adv).165 E(ertisements to learn the SSM)-.165 E
(group range with which the netw)83 294.4 Q(ork is con\214gured.)-.11 E
(This document de\214nes an optional e)97 324 Q
(xtension for the IPv4 Multicast Router Disco)-.165 E -.165(ve)-.165 G
(ry).165 E(protocol [2] that can be used by a router to adv)72 337 Q
(ertise the con\214gured SSM address range.)-.165 E F1(2.)72 376 Q F2
(SSM Range Disco)5.5 E -.14(ve)-.14 G(ry Option F).14 E(ormat)-.35 E F0
(The SSM Range Disco)97 392.6 Q -.165(ve)-.165 G
(ry option SHOULD be included in all Multicast Router).165 E(Adv)72
405.6 Q(ertisement messages [2]. It contains the list of multicast dest\
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(SSM Range Disco)97 671.8 Q -.165(ve)-.165 G(ry option is v).165 E
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(present in the option as well as the sizes of the ranges.)97 684.8 Q
-.385(Ko)72 769 S(uv).385 E 301.958(elas Section)-.165 F 2.75(2. [P)2.75
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(December 2003)2.75 E(June 2003)116.406 E/F1 11/Times-Bold@0 SF
(Mask-Len-n)72 85 Q F0
(The mask length in bits for the nth address range.)97 98 Q F1(Pr)72
127.6 Q(e\214x-n)-.198 E F0(The multicast destination address pre\214x \
for the nth range present in this option. The size of)97 140.6 Q
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-.11 E(includes 7 trailing padding bits.)97 231.6 Q F1(3.)72 270.6 Q/F2
14/Times-Bold@0 SF(Notes on Option Pr)5.5 E(ocessing)-.252 E F0
(Routers originating Multicast Router Adv)97 287.2 Q
(ertisement messages SHOULD NO)-.165 E 2.75(Ti)-.44 G(nclude more)-2.75
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(The SSM range speci\214ed by routers originating Multicast Router Adv)
97 355.8 Q(ertisement messages)-.165 E(with the SSM Range Disco)72 368.8
Q -.165(ve)-.165 G(ry option MUST not include an).165 E 2.75(yp)-.165 G
(art of the link-local multicast)-2.75 E(range 224.0.0/24.)72 381.8 Q
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-.165(ve a M)-.275 H(ulticast Router).165 E(Adv)72 394.8 Q
(ertisement message with a SSM Range Disco)-.165 E -.165(ve)-.165 G
(ry option that includes destination addresses).165 E
(in the link-local multicast range 224.0.0/24 MUST use as the acti)72
407.8 Q .33 -.165(ve S)-.275 H(SM range the contents of).165 E
(the option e)72 420.8 Q(xcluding an)-.165 E 2.75(ya)-.165 G
(ddresses in the range 224.0.0/24.)-2.75 E 2.75(Ar)97 437.4 S
(outer recei)-2.75 E(ving a Multicast Router Adv)-.275 E
(ertisement message with an SSM Range)-.165 E(Disco)72 450.4 Q -.165(ve)
-.165 G(ry option MUST compare the contents of the option with the mult\
icast address ranges in).165 E
(the local SSM con\214guration and signal an)72 463.4 Q 2.75(yd)-.165 G
(if)-2.75 E(ferences to the administrator in a rate-limited)-.275 E
(manner)72 476.4 Q 5.5(.S)-.605 G(ignaling of range dif)-5.5 E
(ferences may be accomplished by a mechanism as simple as an)-.275 E(en\
try in the router log containing the address of the router with the mis\
match in con\214guration.)72 489.4 Q F1(4.)72 528.4 Q F2
(Security Considerations)5.5 E F0(Multicast Router Adv)97 545 Q
(ertisement messages are IGMP messages sent to the All-Systems)-.165 E
(multicast group \(224.0.0.1\) which is not forw)72 558 Q
(arded by routers. Only rogue systems on a)-.11 E(connected link can ma\
squerade as multicast routers. Such rogue systems can include the SSM)72
571 Q(Range Disco)72 584 Q -.165(ve)-.165 G(ry option in their messages\
 and cause the SSM range mapping to be incorrectly set).165 E
(by hosts on the link. The ne)72 597 Q(xt Multicast Router Adv)-.165 E
(ertisement from a real v)-.165 E(alid router on the link)-.275 E(will \
restore the correct mapping. This spec mandates that routers log the re\
ception of inconsistent)72 610 Q(range adv)72 623 Q
(ertisements which mak)-.165 E(es it easier to detect rogue systems.)
-.11 E F1(5.)72 662 Q F2(IAN)5.5 E 3.5(AC)-.28 G(onsiderations)-3.5 E F0
(This document introduces the ne)97 678.6 Q 2.75(wS)-.275 G
(SM Range Disco)-2.75 E -.165(ve)-.165 G
(ry option for the Multicast Router).165 E(Disco)72 691.6 Q -.165(ve)
-.165 G(ry protocol. This option requires a ne).165 E 2.75(wM)-.275 G
(RD type v)-2.75 E(alue to be assigned by IAN)-.275 E(A.)-.385 E -.385
(Ko)72 769 S(uv).385 E 301.958(elas Section)-.165 F 2.75(5. [P)2.75 F
(age 3])-.165 E EP
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Q/F2 14/Times-Bold@0 SF(Ackno)5.5 E(wledgments)-.14 E F0(The author w)72
101.6 Q(ould lik)-.11 E 2.75(et)-.11 G 2.75(ot)-2.75 G
(hank Bill Fenner and Da)-2.75 E .33 -.165(ve T)-.22 H
(haler for their contrib).165 E(ution to this)-.22 E(document.)72 114.6
Q F1(7.)72 153.6 Q F2 -.7(Au)5.5 G(thors' Addr).7 E(esses)-.252 E F0
(Isidor K)108 172.6 Q(ouv)-.385 E(elas)-.165 E(Cisco Systems)108 185.6 Q
(170 W)108 198.6 Q 2.75(.T)-1.012 G(asman Dri)-3.63 E -.165(ve)-.275 G
(San Jose, CA 95134)108 211.6 Q -.11(ko)108 224.6 S(uv).11 E
(elas@cisco.com)-.165 E F1(8.)72 269.6 Q F2(Normati)5.5 E .28 -.14(ve R)
-.14 H(efer).14 E(ences)-.252 E F0([1] Z. Albanna, K. Almeroth, D. Me)72
286.2 Q(yer)-.165 E 2.75(,M)-.44 G 2.75(.S)-2.75 G(chipper)-2.75 E 2.75
(,")-.44 G(IAN)-2.75 E 2.75(AG)-.385 G(uidelines for IPv4 Multicast)
-2.75 E(Address Assignments", RFC 3171 \(BCP 51\), August 2001.)97 299.2
Q([2] S. Bisw)72 315.8 Q(as, B. Haberman, "IGMP Multicast Router Disco)
-.11 E -.165(ve)-.165 G(ry", W).165 E(ork In Progress, <draft-ietf-)-.88
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(Inf)5.5 E(ormati)-.35 E .28 -.14(ve R)-.14 H(efer).14 E(ences)-.252 E
F0([3] H. Holbrook, B. Cain, "Source-Speci\214c Multicast for IP", w)72
384.4 Q(ork in progress, <draft-ietf-ssm-)-.11 E(arch-00.txt>, 21 No)97
397.4 Q -.165(ve)-.165 G(mber 2001.).165 E([4] B. Haberman, D. Thaler)72
414 Q 2.75(,")-.44 G
(Unicast-Pre\214x-based IPv6 Multicast Addresses", RFC 3306,)-2.75 E
(August 2002.)97 427 Q -.385(Ko)72 769 S(uv).385 E 301.958(elas Section)
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