Shop cisco systems router

Sponsored
About our ads
$1,165.95
Cisco MX75 Router/Security Appliance
B&H Photo-Video-Pro A
Free shipping
$1,165.95
Cisco MX75 Router/Security Appliance
B&H Photo-Video-Pro A
Free shipping
$1,105.95
Cisco C921-4PLTEAS 4-Port Gigabit Integrated Services Router
B&H Photo-Video-Pro A
Free shipping
$1,105.95
Cisco C921-4PLTEAS 4-Port Gigabit Integrated Services Router
B&H Photo-Video-Pro A
Free shipping
$215.00
CISCO DESIGNED Meraki MX67W-HW Wireless Network Security/Firewall - Appliance Only
Amazon.com
Free shipping
$215.00
CISCO DESIGNED Meraki MX67W-HW Wireless Network Security/Firewall - Appliance Only
Amazon.com
Free shipping
$377.33
ISR4351-AX/K9 Cisco 4000 ISR Series ISR 4351 3 X Ports 1000Base-T LAN + 3 X Ports SFP (Mini-GIBIC) 2U Rack-Mountable Integrated Service Router
etechbuy.com
Free shipping
$377.33
ISR4351-AX/K9 Cisco 4000 ISR Series ISR 4351 3 X Ports 1000Base-T LAN + 3 X Ports SFP (Mini-GIBIC) 2U Rack-Mountable Integrated Service Router
etechbuy.com
Free shipping
$56.69
$190.99
Cisco ISR4331 ISR4331/K9 4300 Series ISR Integrated Services Router
yesnocoffee
70% off
$56.69
$190.99
Cisco ISR4331 ISR4331/K9 4300 Series ISR Integrated Services Router
yesnocoffee
$526.67
RV340-K9 Cisco RV340 2 X RJ-45 WAN Ports + 4 X RJ-45 LAN Ports Rack-Mountable Gigabit VPN Router
etechbuy.com
Free shipping
$526.67
RV340-K9 Cisco RV340 2 X RJ-45 WAN Ports + 4 X RJ-45 LAN Ports Rack-Mountable Gigabit VPN Router
etechbuy.com
Free shipping
$213.13
WRT320N-RM Cisco Linksys WRT320N Dual-Band Wireless-N Gigabit Router 4 X 10/100/1000Base-TX Network LAN 1 X 10/100/1000Base-TX Network WAN IEEE 80
etechbuy.com
Free shipping
$213.13
WRT320N-RM Cisco Linksys WRT320N Dual-Band Wireless-N Gigabit Router 4 X 10/100/1000Base-TX Network LAN 1 X 10/100/1000Base-TX Network WAN IEEE 80
etechbuy.com
Free shipping
$510.00
CISCO1921/K9 Cisco 1900 921 2X 1000BT LAN 1X ADSL2+ WAN 2X Expansion Slot 24Mb/S Router
etechbuy.com
Free shipping
$510.00
CISCO1921/K9 Cisco 1900 921 2X 1000BT LAN 1X ADSL2+ WAN 2X Expansion Slot 24Mb/S Router
etechbuy.com
Free shipping
$56.69
$190.99
Cisco ISR4331 ISR4331/K9 4300 Series ISR Integrated Services Router
www.oiimamanapls
70% off
$56.69
$190.99
Cisco ISR4331 ISR4331/K9 4300 Series ISR Integrated Services Router
www.oiimamanapls
$1,988.83
New Cisco C8200-1N-4T - Catalyst 8200 Series Router Factory Sealed
eBay
Free shipping
$1,988.83
New Cisco C8200-1N-4T - Catalyst 8200 Series Router Factory Sealed
eBay
Free shipping
$375.38
CISCO2951/K9 Cisco 2900 Series 2951 3 X Ports 1000Base-T + 4 X EHWIC Slots + 3 X DSP Slots + 1 X ISM Slot 2U Rack-Mountable Integrated Service Router
etechbuy.com
Free shipping
$375.38
CISCO2951/K9 Cisco 2900 Series 2951 3 X Ports 1000Base-T + 4 X EHWIC Slots + 3 X DSP Slots + 1 X ISM Slot 2U Rack-Mountable Integrated Service Router
etechbuy.com
Free shipping
$2,755.29
Cisco Catalyst 8200 Gigabit Router, Silver (C8200-1N-4T)
Staples
1
$2,755.29
Cisco Catalyst 8200 Gigabit Router, Silver (C8200-1N-4T)
Staples
1
$56.99
Cisco 3825 Voice Bundle USB Router (CISCO3825-V/K9)
Staples
$56.99
Cisco 3825 Voice Bundle USB Router (CISCO3825-V/K9)
Staples
$2,004.19
Cisco Catalyst 8200 Gigabit Router, Silver (C8200-1N-4T) | Quill
Quill
1
$2,004.19
Cisco Catalyst 8200 Gigabit Router, Silver (C8200-1N-4T) | Quill
Quill
1
$45.14
Cisco 2621 Router, Black
Tattootraveler Store C
$45.14
Cisco 2621 Router, Black
Tattootraveler Store C
$999.00
Cisco Catalyst C8140-G2 Edge Router
Walmart
Free shipping
$999.00
Cisco Catalyst C8140-G2 Edge Router
Walmart
Free shipping
$622.40
NEW Cisco 2911-SEC/K9 - Security Bundle Router 1-Year Warranty Free Shipping
eBay
Free shipping
$622.40
NEW Cisco 2911-SEC/K9 - Security Bundle Router 1-Year Warranty Free Shipping
eBay
Free shipping
$1,399.99
Cisco 2901 Terminal Server Bundle - Router - Desktop
Walmart
Free shipping
$1,399.99
Cisco 2901 Terminal Server Bundle - Router - Desktop
Walmart
Free shipping
$999.00
Cisco Asr-920-4Sz-A Router - 2 Ports - Management Port - 8 Slots - 10 Gigabit Ethernet - 1U - Rack-
Walmart
Free shipping
$999.00
Cisco Asr-920-4Sz-A Router - 2 Ports - Management Port - 8 Slots - 10 Gigabit Ethernet - 1U - Rack-
Walmart
Free shipping
$595.00
CISCO 2901 Integrated Services Router / CISCO2901-16TS/K9 /
Walmart
Free shipping
$595.00
CISCO 2901 Integrated Services Router / CISCO2901-16TS/K9 /
Walmart
Free shipping
$595.00
Cisco - 1941W Wireless Integrated Services Router - 2 X 10/100/1000Base-TX Network - 2 X HWIC 2 X Compactflash (CF) Card - IEEE 802.11N (Draft) - 54Mbps CISCO1941W-A/K9
Walmart
Free shipping
$595.00
Cisco - 1941W Wireless Integrated Services Router - 2 X 10/100/1000Base-TX Network - 2 X HWIC 2 X Compactflash (CF) Card - IEEE 802.11N (Draft) - 54Mbps CISCO1941W-A/K9
Walmart
Free shipping
$1,169.41
ISR1100-4G Cisco 1100 Series 4 X LAN Ports 100Base-TX/1000Base-T Desktop Integrated Services Router
etechbuy.com
Free shipping
$1,169.41
ISR1100-4G Cisco 1100 Series 4 X LAN Ports 100Base-TX/1000Base-T Desktop Integrated Services Router
etechbuy.com
Free shipping
$472.96
C1109-2PLTEVZ= Cisco 1100 Series 1109 2 X Ports 1000Base-T LAN + 1 X Port SFP/RJ-45 WAN 2 X External Antennas Integrated Services Router
etechbuy.com
Free shipping
$472.96
C1109-2PLTEVZ= Cisco 1100 Series 1109 2 X Ports 1000Base-T LAN + 1 X Port SFP/RJ-45 WAN 2 X External Antennas Integrated Services Router
etechbuy.com
Free shipping
$490.00
CISCO2921-SEC/K9 Cisco 2921 3 Ports Services Router
ServerOrbit.com
8
Free shipping
$490.00
CISCO2921-SEC/K9 Cisco 2921 3 Ports Services Router
ServerOrbit.com
8
$4,890.00
ISR4431-V/K9 Cisco Router, 4-Port Ethernet, Rack-Mountable
ServerOrbit.com
Free shipping
$4,890.00
ISR4431-V/K9 Cisco Router, 4-Port Ethernet, Rack-Mountable
ServerOrbit.com
Free shipping
$6,690.00
ASR1002-HX Cisco System Router, 4X10ge+4X1ge, 2Xp/S - Rack-Mountable
ServerOrbit.com
Free shipping
$6,690.00
ASR1002-HX Cisco System Router, 4X10ge+4X1ge, 2Xp/S - Rack-Mountable
ServerOrbit.com
Free shipping
$185.64
RV042 CISCO - Computer & Networking Router Supplies
Radwell.com
233
$185.64
RV042 CISCO - Computer & Networking Router Supplies
Radwell.com
233
$1,754.98
ISR4351-V/K9 - Cisco 4000 Series 4351 3 X Ports 1000Base-T LAN/WAN + 3 X Ports SFP Mini-GIBIC 2U Rack-Mountable Integrated Service Router
NTS Merchant
$1,754.98
ISR4351-V/K9 - Cisco 4000 Series 4351 3 X Ports 1000Base-T LAN/WAN + 3 X Ports SFP Mini-GIBIC 2U Rack-Mountable Integrated Service Router
NTS Merchant
$2,064.79
A901-6CZ-FT-D Cisco ASR 901 Series 4 X Ports 1000Base-T + 4 X Ports SFP + 4 X Combo Ports + 2 X Ports 10Gbe 1U Rack-Mountable Router Chassis
etechbuy.com
Free shipping
$2,064.79
A901-6CZ-FT-D Cisco ASR 901 Series 4 X Ports 1000Base-T + 4 X Ports SFP + 4 X Combo Ports + 2 X Ports 10Gbe 1U Rack-Mountable Router Chassis
etechbuy.com
Free shipping
$108.98
ISR4331 - Cisco Integrated Services Router
NTS Merchant
$108.98
ISR4331 - Cisco Integrated Services Router
NTS Merchant
$356.13
ISR4331-SEC/K9 Cisco 4000 Series 4331 2 X Ports 1000Base-T LAN/WAN + 2 X Ports SFP (Mini-GIBIC) 1U Rack-Mountable Integrated Service Router
etechbuy.com
Free shipping
$356.13
ISR4331-SEC/K9 Cisco 4000 Series 4331 2 X Ports 1000Base-T LAN/WAN + 2 X Ports SFP (Mini-GIBIC) 1U Rack-Mountable Integrated Service Router
etechbuy.com
Free shipping
$289.00
ISR4321/K9 Cisco Integrated Service Router 4321 - 2 Ports
ServerOrbit.com
7
Free shipping
$289.00
ISR4321/K9 Cisco Integrated Service Router 4321 - 2 Ports
ServerOrbit.com
7
$995.00
CISCO3945-V/K9 Cisco 3945 ISR Router.
ServerOrbit.com
Free shipping
$995.00
CISCO3945-V/K9 Cisco 3945 ISR Router.
ServerOrbit.com
Free shipping
$488.14
866VAE-K9 CISCO - Computer & Networking Router Supplies
Radwell.com
$488.14
866VAE-K9 CISCO - Computer & Networking Router Supplies
Radwell.com
$737.75
2610 CISCO - Computer & Networking Router Supplies
Radwell.com
$737.75
2610 CISCO - Computer & Networking Router Supplies
Radwell.com
$375.37
MX67-HW Cisco Meraki MX67 4 X LAN Port 1000Base-T + 1 X WAN Port 1000Base-T Cloud Managed Network Security Firewall
etechbuy.com
Free shipping
$375.37
MX67-HW Cisco Meraki MX67 4 X LAN Port 1000Base-T + 1 X WAN Port 1000Base-T Cloud Managed Network Security Firewall
etechbuy.com
Free shipping
First Look at the Cisco 8500 Secure Router Series
3:33
YouTubeCisco
First Look at the Cisco 8500 Secure Router Series
Take an exclusive first look at the Cisco 8500 Series Secure Router—purpose-built for large enterprises and data center environments. In this video, we explore how the Cisco 8500 Series delivers unmatched performance, advanced security, and high scalability to meet the demands of mission-critical, modern enterprise networks. Related links ...
3K views3 months ago
Cisco Router Configuration
Cisco Router Configuration Step by Step | How to Configure Cisco Router | Cisco Router⛺
35:49
Cisco Router Configuration Step by Step | How to Configure Cisco Router | Cisco Router⛺
YouTubeSimple Networkings
13.2K viewsJan 4, 2024
How to configure Cisco Router from scratch step by step for your home office
58:06
How to configure Cisco Router from scratch step by step for your home office
YouTubeIT Solutions Network (David
5.3K viewsDec 8, 2024
Complete Guide to Configuring a Cisco Router: Step-by-Step Tutorial
16:14
Complete Guide to Configuring a Cisco Router: Step-by-Step Tutorial
YouTubeZ-LIMIT'S
84 viewsDec 12, 2024
Top videos
First Look at the Cisco 8100 Series Secure Routers
3:34
First Look at the Cisco 8100 Series Secure Routers
YouTubeCisco
2.8K views3 months ago
Unboxing the Cisco 8300 Secure Router: Next-Gen Security & SD-WAN for Your Business
4:38
Unboxing the Cisco 8300 Secure Router: Next-Gen Security & SD-WAN for Your Business
YouTubeCisco
10.5K views10 months ago
Unboxing the Cisco 8200 Secure Router
3:27
Unboxing the Cisco 8200 Secure Router
YouTubeCisco
2.8K views4 months ago
Cisco Router Troubleshooting
How to troubleshoot Cisco Router for Network Connectivity Issues
14:33
How to troubleshoot Cisco Router for Network Connectivity Issues
YouTubeIT Ideas
1.1K viewsNov 30, 2022
6 Go-To Cisco IOS Show Commands to Troubleshoot a Router | How to Get Started in IT
3:50
6 Go-To Cisco IOS Show Commands to Troubleshoot a Router | How to Get Started in IT
YouTubeACI Learning
10.5K viewsMay 2, 2020
Do you know Basic Network Troubleshooting | Real Devices Troubleshooting | #ciscorouter #ciscoswitch
3:01
Do you know Basic Network Troubleshooting | Real Devices Troubleshooting | #ciscorouter #ciscoswitch
YouTubePM Networking
79.6K viewsFeb 7, 2023
First Look at the Cisco 8100 Series Secure Routers
3:34
First Look at the Cisco 8100 Series Secure Routers
2.8K views3 months ago
YouTubeCisco
Unboxing the Cisco 8300 Secure Router: Next-Gen Security & SD-WAN for Your Business
4:38
Unboxing the Cisco 8300 Secure Router: Next-Gen Security & SD-W…
10.5K views10 months ago
YouTubeCisco
Unboxing the Cisco 8200 Secure Router
3:27
Unboxing the Cisco 8200 Secure Router
2.8K views4 months ago
YouTubeCisco
Unboxing the Cisco 8400 Series Router
3:32
Unboxing the Cisco 8400 Series Router
1.9K views3 months ago
YouTubeCisco
Cisco Router Basics | VIDEO #1 | Introduction to Essential Cisco CLI Commands ! New Lab Series !
26:02
Cisco Router Basics | VIDEO #1 | Introduction to Essential Cisco CL…
337 views4 months ago
YouTubeVaibhav Parmar
Cisco Router and Switch Configuration Step by Step | Connecting Router and Switch to Internet
38:12
Cisco Router and Switch Configuration Step by Step | Conn…
31.1K viewsJan 15, 2025
YouTubePM Networking
Cisco Router & Switch Configuration | How to set up Home/Office Network Step-by-Step
15:36
Cisco Router & Switch Configuration | How to set up Hom…
41.1K viewsFeb 24, 2025
YouTubeCisco Config
0:20
C8300-1N1S-6T, Cisco C8300 Router, 6x 1 Gigabit RJ45 1x SM S…
495 views3 months ago
YouTubeLinknewnet
15:41
Cisco Router and Switch Configuration Step by Step | Conn…
628.4K viewsSep 9, 2024
YouTubeCisco Config
45:07
CCNA full course Playlist Day 10 | Cisco Router Basics | CCNA Traini…
22.8K viewsMar 18, 2025
YouTubeNetworkers Guru
22:12
Cisco ISR 4431/4331 Quick Setup: Basic Router Configuration Guide
3.4K viewsDec 30, 2024
YouTubeFoley Systems
0:40
two Cisco routers with different operating systems: Cisco IOS an…
390 views3 weeks ago
YouTubeJfams Media
0:30
Inside Cisco CRS Router: MSC-B Forwarding Engine #cisco #router …
654 views1 month ago
YouTubeLinknewnet
7:52
Introduction of CISCO Routers | CCNA Networking #CISCO #Netwo…
87 views4 months ago
YouTubeTechzPoint
0:35
ASR1000-RP3, Cisco ASR1000 Router, Brain & Redundancy #cisc…
769 views1 month ago
YouTubeLinknewnet
1:23
Cisco Secure Routers: Integrated Threat Defense & Network Resilie…
2.7K views9 months ago
YouTubeCisco
5:58
Cisco Networking Explained for Beginners | Routers, Switches & B…
5 views2 months ago
YouTubeMy Assignment Solution
37:23
Find in video from 01:36Config Initial Router Settings
CCNA Module 10: Basic Router Configuration - Introduction to Net…
14.1K viewsMay 23, 2022
YouTubeNetITGeeks
8:15
In-depth NCS560 system design
3.4K viewsAug 28, 2022
YouTubeRoute Switch Repeat
0:12
Evolution of Enterprise Routers | RIP to AI-Driven Networks Explained
1.8K views5 months ago
YouTubeGuiNet
19:50
How to configure static routing between routers in CISCO Packet …
8.4K views10 months ago
YouTubeBreezy Codes
18:30
Cisco IP Routing Explained | Basics to Advanced | Cisco Routing Simp…
190 views9 months ago
YouTubeThe Ultimate Fix IT Yourself
8:29
Find in video from 01:06Real Routing Table on Cisco Router
Routing Table Explained
78.3K viewsJan 5, 2023
YouTubeNetwork Direction
5:36
RIP Routing with 3 Routers 3 Switches and 6 PCs | Dynamic Ro…
71.6K viewsOct 13, 2024
YouTubeThe Adiga
14:31
Find in video from 05:49Router Behavior
Use of Hub,Switch,Router in network using Cisco Packet Tracer
72K viewsApr 23, 2022
YouTubeBeena Ballal
15:55
On the Inside - Cisco 2811 Router
61.4K viewsMar 2, 2018
YouTubeNGT Academy
17:55
How to configure RIP routing between routers in CISCO Packet …
8.9K views10 months ago
YouTubeBreezy Codes
10:53
Find in video from 00:36Connecting to the Cisco Router
Basic Cisco Router commands
319.5K viewsJul 4, 2016
YouTubeNetwork Advisor
3:46
Cisco 2900 Series Integrated Services Routers
23.5K viewsJun 15, 2014
YouTubeCisco - Al Maria Middle East Technogloies
See more videos
Static thumbnail place holder

Shop cisco systems router

Sponsored
About our ads
$1,165.95
Cisco MX75 Router/Security Appliance
B&H Photo-Video-Pro A
Free shipping
$1,165.95
Cisco MX75 Router/Security Appliance
B&H Photo-Video-Pro A
Free shipping
$1,105.95
Cisco C921-4PLTEAS 4-Port Gigabit Integrated Services Router
B&H Photo-Video-Pro A
Free shipping
$1,105.95
Cisco C921-4PLTEAS 4-Port Gigabit Integrated Services Router
B&H Photo-Video-Pro A
Free shipping
$215.00
CISCO DESIGNED Meraki MX67W-HW Wireless Network Security/Firewall - Appliance Only
Amazon.com
Free shipping
$215.00
CISCO DESIGNED Meraki MX67W-HW Wireless Network Security/Firewall - Appliance Only
Amazon.com
Free shipping
$377.33
ISR4351-AX/K9 Cisco 4000 ISR Series ISR 4351 3 X Ports 1000Base-T LAN + 3 X Ports SFP (Mini-GIBIC) 2U Rack-Mountable Integrated Service Router
etechbuy.com
Free shipping
$377.33
ISR4351-AX/K9 Cisco 4000 ISR Series ISR 4351 3 X Ports 1000Base-T LAN + 3 X Ports SFP (Mini-GIBIC) 2U Rack-Mountable Integrated Service Router
etechbuy.com
Free shipping
$56.69
$190.99
Cisco ISR4331 ISR4331/K9 4300 Series ISR Integrated Services Router
yesnocoffee
70% off
$56.69
$190.99
Cisco ISR4331 ISR4331/K9 4300 Series ISR Integrated Services Router
yesnocoffee
$526.67
RV340-K9 Cisco RV340 2 X RJ-45 WAN Ports + 4 X RJ-45 LAN Ports Rack-Mountable Gigabit VPN Router
etechbuy.com
Free shipping
$526.67
RV340-K9 Cisco RV340 2 X RJ-45 WAN Ports + 4 X RJ-45 LAN Ports Rack-Mountable Gigabit VPN Router
etechbuy.com
Free shipping
$213.13
WRT320N-RM Cisco Linksys WRT320N Dual-Band Wireless-N Gigabit Router 4 X 10/100/1000Base-TX Network LAN 1 X 10/100/1000Base-TX Network WAN IEEE 80
etechbuy.com
Free shipping
$213.13
WRT320N-RM Cisco Linksys WRT320N Dual-Band Wireless-N Gigabit Router 4 X 10/100/1000Base-TX Network LAN 1 X 10/100/1000Base-TX Network WAN IEEE 80
etechbuy.com
Free shipping
$510.00
CISCO1921/K9 Cisco 1900 921 2X 1000BT LAN 1X ADSL2+ WAN 2X Expansion Slot 24Mb/S Router
etechbuy.com
Free shipping
$510.00
CISCO1921/K9 Cisco 1900 921 2X 1000BT LAN 1X ADSL2+ WAN 2X Expansion Slot 24Mb/S Router
etechbuy.com
Free shipping
$56.69
$190.99
Cisco ISR4331 ISR4331/K9 4300 Series ISR Integrated Services Router
www.oiimamanapls
70% off
$56.69
$190.99
Cisco ISR4331 ISR4331/K9 4300 Series ISR Integrated Services Router
www.oiimamanapls
$1,988.83
New Cisco C8200-1N-4T - Catalyst 8200 Series Router Factory Sealed
eBay
Free shipping
$1,988.83
New Cisco C8200-1N-4T - Catalyst 8200 Series Router Factory Sealed
eBay
Free shipping
$375.38
CISCO2951/K9 Cisco 2900 Series 2951 3 X Ports 1000Base-T + 4 X EHWIC Slots + 3 X DSP Slots + 1 X ISM Slot 2U Rack-Mountable Integrated Service Router
etechbuy.com
Free shipping
$375.38
CISCO2951/K9 Cisco 2900 Series 2951 3 X Ports 1000Base-T + 4 X EHWIC Slots + 3 X DSP Slots + 1 X ISM Slot 2U Rack-Mountable Integrated Service Router
etechbuy.com
Free shipping
$2,755.29
Cisco Catalyst 8200 Gigabit Router, Silver (C8200-1N-4T)
Staples
1
$2,755.29
Cisco Catalyst 8200 Gigabit Router, Silver (C8200-1N-4T)
Staples
1
$56.99
Cisco 3825 Voice Bundle USB Router (CISCO3825-V/K9)
Staples
$56.99
Cisco 3825 Voice Bundle USB Router (CISCO3825-V/K9)
Staples
$2,004.19
Cisco Catalyst 8200 Gigabit Router, Silver (C8200-1N-4T) | Quill
Quill
1
$2,004.19
Cisco Catalyst 8200 Gigabit Router, Silver (C8200-1N-4T) | Quill
Quill
1
$45.14
Cisco 2621 Router, Black
Tattootraveler Store C
$45.14
Cisco 2621 Router, Black
Tattootraveler Store C
$999.00
Cisco Catalyst C8140-G2 Edge Router
Walmart
Free shipping
$999.00
Cisco Catalyst C8140-G2 Edge Router
Walmart
Free shipping
$622.40
NEW Cisco 2911-SEC/K9 - Security Bundle Router 1-Year Warranty Free Shipping
eBay
Free shipping
$622.40
NEW Cisco 2911-SEC/K9 - Security Bundle Router 1-Year Warranty Free Shipping
eBay
Free shipping
$1,399.99
Cisco 2901 Terminal Server Bundle - Router - Desktop
Walmart
Free shipping
$1,399.99
Cisco 2901 Terminal Server Bundle - Router - Desktop
Walmart
Free shipping

  • Cisco® Official Site | View Our Featured Solutions

    https://www.cisco.com
    About our ads
    SponsoredFrom Networking & Data Centers to Security & Collaboration, Find the Solutions You Nee…
    Site visitors: Over 10K in the past month
    Service catalog: Cloud Solutions, Enterprise Networking, Small Business Solutions