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unnumbered interfaces, 207<br />

up arrow, 9, 289<br />

up command, 4<br />

uptime utility (Unix), 60, 182<br />

upto keyword, 294<br />

USB port, 46, 53<br />

user accounts<br />

authentication methods, 80<br />

passwords for, 73<br />

setting up, 82<br />

user authentication, 74<br />

user authentication, 74, 96–97<br />

user facility, 163<br />

USER facility code, 163<br />

user ID (UID), 82<br />

user-based security model (see USM)<br />

username, 80, 82, 88<br />

USM (user-based security model)<br />

configuring for security, 156<br />

SNMP and, 129, 133, 153<br />

UTC (Coordinated Universal Time), 36, 164,<br />

183<br />

V<br />

VACM (view-based access control<br />

model), 129, 154<br />

/var directory, 44<br />

/var/db/config directory, 36<br />

/var/log directory<br />

BGP traffic problems, 476<br />

IS-IS operations, 379<br />

logging messages files, 162, 165, 169<br />

logging OSPF traffic, 413<br />

logging SNMP access, 147<br />

tracing RSVP operations, 548<br />

/var/tmp directory, 61<br />

VCI (virtual circuit identifier), 238–240<br />

VCs (virtual circuits)<br />

ATM connections and, 238<br />

defined, 231<br />

label-switched paths and, 480<br />

router interfaces and, 193<br />

view permission bit, 90, 91<br />

view-based access control model<br />

(VACM), 129, 154<br />

views<br />

access control via, 140<br />

SNMP and, 154<br />

virtual circuit identifier (VCI), 238–240<br />

virtual circuits (see VCs)<br />

virtual interfaces, 217<br />

virtual links, 383, 384<br />

virtual path identifier (VPI), 238–240<br />

virtual paths (VPs), 193, 238<br />

Virtual Private LAN Services (VPLS), 179,<br />

194, 480<br />

virtual private networks (see VPNs)<br />

Virtual Router Redundancy Protocol<br />

(VRRP), 221–222<br />

VLAN tagging, 220, 223, 224<br />

VPI (virtual path identifier), 238–240<br />

VPLS (Virtual Private LAN Services), 179,<br />

194, 480<br />

vpls family, 194<br />

VPN routing and forwarding (VRF)<br />

table, 554, 555, 565–567<br />

VPN-IPv4 addresses, 553, 554<br />

VPNs (virtual private networks)<br />

adding for second customer, 568–575<br />

configuring, 569<br />

IPv4 and, 553, 554<br />

MPLS and, 480, 481<br />

multicast tunnel interfaces, 242<br />

multiprotocol BGP and, 420<br />

overview, 552–553<br />

routing tables, 554, 555, 563–568<br />

setting up, 555–563<br />

VPs (virtual paths), 193, 238<br />

VRF (VPN routing and forwarding)<br />

table, 554, 555, 565–567<br />

VRF target, 553<br />

VRRP (Virtual Router Redundancy<br />

Protocol), 221–222<br />

W<br />

w command (Unix), 102<br />

well-known attributes (BGP), 420<br />

wildcard characters, 445<br />

WinZip utility, 53<br />

X<br />

X Windows, 266<br />

Z<br />

zulu (see UTC)<br />

Index | 657<br />

This is the Title of the Book, eMatter Edition<br />

Copyright © 2008 O’Reilly & Associates, Inc. All rights reserved.

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