United States
Q
What is the Cisco ISR 1800 series router?
A
The Cisco ISR 1800 series is an integrated services router family designed for secure WAN connectivity, application performance optimization, and unified communications in SMB and enterprise branch deployments.
Q
Which models are included in the ISR 1800 series?
A
The ISR 1800 series includes the Cisco 1811, 1841, 1861, 1881, and 1941 models, each offering varying throughput, port density, and feature licenses to fit different branch requirements.
Q
What are the key features of the ISR 1800 router?
A
Key features include hardware-accelerated encryption, application-aware routing, modular interface slots, integrated switching, and support for Cisco IOS Software security and WAN optimization.
Q
What is the maximum throughput of the Cisco ISR 1841?
A
The Cisco ISR 1841 delivers up to 100 Mbps of aggregate throughput and supports up to 25 Mbps of encrypted VPN performance with hardware acceleration.
Q
How many WAN and LAN ports does the ISR 1841 support?
A
The ISR 1841 features two integrated GE WAN ports and two GE LAN ports, plus two modular network interface module (NIM) slots for additional ports.
Q
Does the ISR 1800 series support VPN?
A
Yes, the ISR 1800 series supports site-to-site IPsec VPN, remote-access VPN via AnyConnect, and DMVPN with hardware encryption acceleration for high performance.
Q
How do I configure a site-to-site VPN on the ISR 1800?
A
To configure a site-to-site VPN, define IKE phase 1 and phase 2 parameters, create an IPsec transform set and crypto map, then apply the crypto map to the WAN interface.
Q
What types of interfaces does the ISR 1800 series offer?
A
The ISR 1800 series offers built-in GE copper/SFP WAN and LAN interfaces, two NIM slots, two Enhanced High-Speed WAN Interface Card (EHWIC) slots, and optional voice/WAN modules.
Q
What are the memory and storage specifications for ISR 1800?
A
ISR 1800 routers ship with 256 MB to 512 MB of DRAM, 128 MB of flash memory, and support up to 2 GB DRAM and 1 GB flash for firmware and feature expansion.
Q
Is the ISR 1800 series suitable for small business networks?
A
Yes, the ISR 1800 series delivers secure, reliable WAN connectivity, integrated services, and application performance for small to midsize branch offices.
Q
How do I update the IOS software on the ISR 1800?
A
You can update the IOS by uploading the new .bin image via TFTP, FTP, or USB and then using the \
Q
What security features are available on the ISR 1800?
A
Security features include zone-based firewall, intrusion prevention, secure boot, control-plane policing, URL filtering, and integrated threat defense with Cisco IOS Software.
Q
How can I troubleshoot connectivity issues on the ISR 1800?
A
Use diagnostic commands such as ping, traceroute, show interfaces, and debug crypto to identify interface errors, routing problems, or VPN tunnel failures.
Q
What are the power requirements for the ISR 1800 series?
A
ISR 1800 routers operate on 100–240 VAC at 50–60 Hz, consuming up to 30 W; optional DC power modules are available for deployments requiring −48 VDC input.
Q
Does the ISR 1800 support wireless modules?
A
Yes, the ISR 1800 series supports Cisco 802.11a/b/g/n wireless LAN controller modules to provide integrated wireless LAN services at the branch.
Q
What is the warranty and support policy for ISR 1800?
A
Cisco offers a limited lifetime warranty on the ISR 1800 hardware and 90-day software bug fixes, with optional SMARTnet service for 24×7 support, software updates, and advance hardware replacement.
