I have the following output, and I want to replace everything starting with the "/" following the IP address up to, but not including, the first instance of the word vlan. How can accomplish that?

```
sy3-fa-c3r801-lb-3b.audc1.xxxxx.com address 192.168.1.2/30 allow-service { default  traffic-group Common/traffic-group-local-only vlan Common/vlan-HA }
sy3-ibr-lb-1a.audc1.xxxxx.com address 160.34.63.68/29 floating enabled traffic-group Common/traffic-group-1 unit 1 vlan Common/vlan13 
sy3-ibr-lb-1a.audc1.xxxxx.com address 160.34.63.193/26 floating enabled traffic-group Common/traffic-group-1 unit 1 vlan Common/vlan23 
sy3-ibr-lb-1a.audc1.xxxxx.com address 192.168.1.1/30 allow-service { default  traffic-group Common/traffic-group-local-only vlan Common/vlan-HA }
sy3-ibr-lb-1a.audc1.xxxxx.com address 160.34.63.194/26 traffic-group Common/traffic-group-local-only vlan Common/vlan23 
sy3-ibr-lb-1a.audc1.xxxxx.com address 160.34.63.69/29 traffic-group Common/traffic-group-local-only vlan Common/vlan13 
sy3-ibr-lb-1b.audc1.xxxxx.com address 160.34.63.68/29 floating enabled traffic-group Common/traffic-group-1 unit 1 vlan Common/vlan13 
sy3-ibr-lb-1b.audc1.xxxxx.com address 160.34.63.193/26 floating enabled traffic-group Common/traffic-group-1 unit 1 vlan Common/vlan23 
sy3-ibr-lb-1b.audc1.xxxxx.com address 192.168.1.2/30 allow-service { default  traffic-group Common/traffic-group-local-only vlan Common/vlan-HA }
sy3-ibr-lb-1b.audc1.xxxxx.com address 160.34.63.195/26 traffic-group Common/traffic-group-local-only vlan Common/vlan23 
sy3-ibr-lb-1b.audc1.xxxxx.com address 160.34.63.70/29 traffic-group Common/traffic-group-local-only vlan Common/vlan13 

```