Tech SPecs SR2101008E5 CPU — 1001 models: 266 MHz; 1002 and 1004 models: 300 MHz Diagnostics — BERT, loopback, trace route Firewall — Stateful packet inspection (SPI), 25-zone support, NAT, DDoS, ALG, IPSec, L2TP, PPTP Management — CLI®, SNMP, Syslog, Telnet™ SSHV2, FTP/TFTP, SNMPv1, RADIUS, TACACS+, TCL Scripting, BERT, trace route, loopback tests Memory — 1001 models: 128 MB DRAM, 16 MB flash; 1002 models: 256 MB DRAM, 16 MB flash; 1004 models: 256 MB DRAM, 32 MB flash Performance — With services enable