See ACL (Access Control Lists)
filtering, ACL, 206-207
PAP, WAN
authentication, 319-324
PPP session establishment, 319
partial-mesh topologies, Frame Relay DLCI,
329
passwords
authentication, hello packets, 143
plaintext password authentication, OSPF,
157-159, 165-166
PAT (Port Address Translation), 249-252
peer authentication, IPsec, 312
permit any statements, dynamic inside source
IPv4 address translation, 257
ping command
Frame Relay network loopback tests, 349
verifying NAT translations, 265-266
plaintext password authentication, OSPF, 157
example of, 158
troubleshooting, 165-166
verifying, 159
point-to-point subinterfaces, con?¬?guring for
Frame Relay networks, 336-338
poison reverses, 110, 113
port connectivity
autonegotiation, 80
troubleshooting, 77-80
port security, Catalyst switches, 71-73
PortFast, 53-54
PPP (Point-to-Point Protocol), 315
LCP, WAN, 317
NCP, WAN, 318
WAN, 316-317
authentication, 319-324
encapsulation, 320-323
session establishment phases, 318
ppp authentication command, 321
PPPoA (Point-to-Point Protocol over ATM)
protocol, WAN, 316
PPPoE (Point-to-Point Protocol over
Ethernet) protocol, WAN, 316
private IPv6 addresses, 275
Privileged EXEC mode (IOS Software), 4
pruning VTP, 29, 31
PSK (Pre-Shared Keying), IPsec, 312
PVC (Permanent Virtual Circuits), Frame
Relay networks, 327
PVRST+ (Per VLAN Spanning Tree Protocol
Plus), 59-61
PVST+ (Per VLAN Spanning Tree Plus)
BID, 58
Catalyst switches, 61
VID, 57
Q - R
question mark (?) command, context-sensitive
help, 6
redundant switched-network topologies
benefits of, 45
equipment requirements, 42
interconnectivity, 40-42
oversubscription ratios, 42-43
problems with
broadcast ?¬‚ooding, 46
broadcast storms, 45-47
MAC database instability, 45, 48-49
multiple frame transmission, 45-48
re?¬‚exive ACL (Access Control Lists), 216-217
reliability, routing protocol metrics, 101
remark command, adding comments to
named/numbered ACL, 239
remote-access VPN (Virtual Private
Networks), 300
reserved IPv6 addresses, 275
RIPng, con?¬?guring IPv6, 287-288
root bridges, STP
electing in, 50
selecting for, 51-52
troubleshooting, 87
VLAN configuration, 63
outbound ACL (Access Control Lists)
379
route aggregation.
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