Refer to the exhibit. The command _show interface serial 1/0 is issued on the Router _R4, for some reason the physical line is up, but there is no connectivity between both routers.
![static routing configuartion on cisco router using serial port. – Learn Linux CCNA CCNP CEH CISSP CISA Penetration-Testing Bug Bounty IPv6 Cyber-Security Network-Security Online static routing configuartion on cisco router using serial port. – Learn Linux CCNA CCNP CEH CISSP CISA Penetration-Testing Bug Bounty IPv6 Cyber-Security Network-Security Online](https://linuxtiwary.files.wordpress.com/2015/03/staic-routing-using-serial-port.png?w=640)
static routing configuartion on cisco router using serial port. – Learn Linux CCNA CCNP CEH CISSP CISA Penetration-Testing Bug Bounty IPv6 Cyber-Security Network-Security Online
![How to Configure Cisco Router Interfaces (FastEthernet and Serial Interfaces)-Cisco Certifications – UPaae How to Configure Cisco Router Interfaces (FastEthernet and Serial Interfaces)-Cisco Certifications – UPaae](https://upaae.com/wp-content/uploads/2016/08/config-interface-3.jpg)
How to Configure Cisco Router Interfaces (FastEthernet and Serial Interfaces)-Cisco Certifications – UPaae
![Skill Test in Packet tracer : Step by Step Basic Global Configuration commands for new learner (CISCO MODULE 1) | My Networking Learning "ABC" Skill Test in Packet tracer : Step by Step Basic Global Configuration commands for new learner (CISCO MODULE 1) | My Networking Learning "ABC"](https://mynetworkinglearningabc.files.wordpress.com/2014/07/cablling.jpg)
Skill Test in Packet tracer : Step by Step Basic Global Configuration commands for new learner (CISCO MODULE 1) | My Networking Learning "ABC"
![Serial Point-to-Point Overview (3.1) > Cisco Networking Academy Connecting Networks Companion Guide: Point-to-Point Connections | Cisco Press Serial Point-to-Point Overview (3.1) > Cisco Networking Academy Connecting Networks Companion Guide: Point-to-Point Connections | Cisco Press](https://www.ciscopress.com/content/images/chap3_9781587133329/elementLinks/03fig15_alt.jpg)