Cisco ISR 1800 CISCO1841 Cisco Integrated Services Router (ISR)
Brand: Cisco | Category: Network Equipment
SKU: CSC-CISCO1841 | Part #: CISCO1841 | MPN: CISCO1841
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About the Cisco ISR 1800 CISCO1841 Cisco Integrated Services Router (ISR)
The Cisco ISR 1800 CISCO1841 does not offer active-passive, active-active, or VRRP failover capabilities—this is a single-unit Integrated Services Router designed for branch office and edge network deployments where inline redundancy is managed at the architecture level rather than the device level. The Cisco 1800 Series ISR combines routing, security, and WAN connectivity in a compact 1U rack-mountable or desktop form factor, delivering enterprise-grade performance with a 256 MHz RISC processor, up to 384 MB of DRAM, and 128 MB maximum flash storage.
Network engineers evaluating branch-level routing solutions will find the CISCO1841 suitable for organizations requiring integrated VPN termination, firewall functionality, and multi-protocol routing support. This Cisco platform provides 2 x 10/100 Fast Ethernet LAN ports, 2 x WIC/HWIC slots for interface expansion, and 2 x AIM slots for modular service integration. Security-focused deployments benefit from Cisco IOS Firewall with stateful inspection, IOS IPS, ACLs, and NAT/PAT. VPN capabilities include hardware-accelerated IPsec (via AIM-VPN module), GRE, and DMVPN, while routing support spans OSPF, EIGRP, BGP, IS-IS, RIPv2, and MPLS. Management connectivity includes 1 x RJ-45 console port, 1 x auxiliary port, and 1 x USB Type-A for token or flash storage. The device runs Cisco IOS and features an internal AC power supply.
Typical Branch and Edge Deployments
- Remote office WAN edge routing with IPsec VPN site-to-site connectivity
- Branch firewall and stateful inspection for small-to-medium office networks
- Multi-protocol routing (OSPF, EIGRP, BGP) in distributed enterprise topologies
- Modular service insertion via WIC/HWIC and AIM slot expansion for future growth
- Integrated IPS and ACL-based threat mitigation at the network perimeter
To request a quote or discuss deployment requirements for the Cisco ISR 1800 CISCO1841, contact Omnixon Global today.
Technical Specifications
| Brand | Cisco |
| Category | Network Equipment |
| SKU | CSC-CISCO1841 |
| Part Number | CISCO1841 |
| Condition | New |
| Manufacturer Part Number | CISCO1841 |
| Product Series | Cisco 1800 Series Integrated Services Routers |
| Form Factor | 1U rack-mountable / desktop |
| Processor | 256 MHz RISC |
| Default DRAM | 64 MB |
| Maximum DRAM | 384 MB |
| Default Flash Storage | 32 MB |
| Maximum Flash Storage | 128 MB |
| Built-in LAN Ports | 2 x 10/100 Fast Ethernet (RJ-45) |
| WIC / HWIC Slots | 2 x WIC/HWIC slots |
| AIM Slots | 2 x Advanced Integration Module (AIM) slots |
| Console Port | 1 x RJ-45 asynchronous serial console |
| Auxiliary Port | 1 x RJ-45 asynchronous serial auxiliary |
| USB Port | 1 x USB Type-A (for token/flash storage) |
| Operating System | Cisco IOS |
| Supported Routing Protocols | OSPF, EIGRP, BGP, IS-IS, RIPv2, MPLS |
| VPN Support | IPsec (hardware acceleration via AIM-VPN module), GRE, DMVPN |
| Security Features | Cisco IOS Firewall (stateful inspection), IOS IPS, ACLs, NAT/PAT |
| Power Supply | Internal AC power supply |
| Input Voltage | 100–240 V AC, 50–60 Hz |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
Frequently Asked Questions about Cisco ISR 1800 CISCO1841 Cisco Integrated Services Router (ISR)
What does the Cisco ISR 1800 CISCO1841 Cisco Integrated Services Router (ISR) do?
The Cisco ISR 1800 CISCO1841 Cisco Integrated Services Router (ISR) is enterprise networking hardware for data-center, campus, and branch deployments. Common roles include core/distribution switching, server uplinks, top-of-rack fabric, and edge connectivity in mixed Cisco/Juniper/Arista environments.
Is the Cisco ISR 1800 CISCO1841 Cisco Integrated Services Router (ISR) compatible with my infrastructure?
The Cisco ISR 1800 CISCO1841 Cisco Integrated Services Router (ISR) interoperates with standard switching protocols (LACP, MLAG/VPC, 802.1Q, OSPF/BGP). For specific cross-vendor scenarios — Cisco-to-Arista MLAG peering, fabric integration with Cumulus/SONiC, or migration from legacy Catalyst — our network engineers map a compatibility plan as part of the RFQ.