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ISG50 User’s Guide 863
DiffServ 299, 430, 447
DiffServ Code Point
see DSCP
digit handling 451
digital sampling 475
Digital Signature Algorithm public-key algorithm,
see DSA
direct pickup 433
direct routes 292
directory 631
directory service 631
file structure 633
directory traversal attack 425
directory traversals 425
disclaimer 855
Distinguished Name (DN) 633, 634, 635, 636
distributed port scans 422
DN 633, 634, 635, 636
DND 433, 462, 465, 762
DNS 672
address records 674
domain name forwarders 675
domain name to IP address 674
IP address to domain name 675
Mail eXchange (MX) records 676
pointer (PTR) records 675
DNS servers 74, 672, 675
and interfaces 278
documentation
related 2
domain name 666
Domain Name System, see DNS
double-encoding attack 425
DPD 385
drop precedence 447
DSA 649
DSCP 293, 295, 430, 447, 749
DSP 38
resources 547
DTMF 468, 469, 470, 484, 491
Dynamic Domain Name System, see DDNS
Dynamic Host Configuration Protocol, see DHCP.
dynamic peers in IPSec 373
DynDNS 317
DynDNS see also DDNS 317
Dynu 317
E
E911 532
echo 430
EGP (Exterior Gateway Protocol) 421
egress bandwidth 256
e-mail
daily statistics report 706
email, attaching voice file 764
emergency calls 532, 533
configuration 538
overview 532
en-bloc 451
Encapsulating Security Payload, see ESP
encapsulation
and active protocol 392
IPSec 374
transport mode 392
tunnel mode 392
VPN 392
encryption
IPSec 374
RSA 652
encryption algorithms 387
3DES 387
AES 387
and active protocol 387
DES 387
encryption method 663
enforcing policies in IPSec 374
Enhanced 911
see E911
ESP 374, 392
and transport mode 392
Ethernet interfaces 107, 234
and OSPF 239
and RIP 238
and routing protocols 237
basic characteristics 234
examples (tutorials) 107
exceptional services 349
expedited forwarding 447
experimental-options attack 426