Long and short IPv6 addresses compatibility in MainView for IP
MainView for IP is a TCP/IP monitor and displays IP addresses on many different views.
Typically, an IPv4 address displays only15 characters on a 3270 view. An IPv6 address can display up to 39 characters. MainView for IP accommodates customers who are running IPv4 networks, IPv6 networks, or a combination of both.
MainView for IP can display full IPv6 addresses without impacting those networks that are still running IPv4 networks. However, on MainView tabular views where records are displayed on one line is IP addresses must fit within the viewable 80 columns. The MainView detailed views are not affected because the fields can be expanded without impacting other fields in the record.
To accommodate IPv4, IPv6 and mixed networks, MainView for IP will continue to use 16 character fields for both IPv4 and IPv6 addresses. However, for IPv6 addresses that extend beyond 16 characters, only the first 7 characters and the last 7 characters are displayed. Two periods '..' in the middle of the IP address indicate that the IPv6 address has been truncated or shortened.
In the Example of a MainView for IP window interface with an IPv6 address, the IPv6 address (2002:0:0:1::3306) is the last entry in the panel.
Example of a MainView for IP window interface with an IPv6 address
COMMAND ===> SCROLL ===> PAGE
CURR WIN ===> 1 ALT WIN ===>
>W1 =TCPCONS===========TCPIP====*========06OCT2009==03:36:48====MVIP=====D==201
CMD Remote Remote Local Local Bytes Bytes Conn DNS
--- IPAddr Port IPAddr Port In Out Status Nam
172.22.33.48 1379 172.17.4.175 23 3 3 Establish ddo
172.22.33.84 4304 172.17.4.175 23 0 0 Establish AUS
172.22.34.119 1209 172.17.4.175 23 0 0 Establish AUS
172.22.34.119 1210 172.17.4.175 23 0 0 Establish AUS
172.24.33.211 48759 172.17.4.175 21 0 0 Closed phx
172.24.33.211 48838 172.17.4.175 21 0 0 Closed phx
172.24.33.211 49255 172.17.4.175 21 0 0 Timewait phx
172.24.33.213 32990 172.17.4.175 7104 60618 123K Establish phx
172.24.33.213 34017 172.17.4.175 7104 572 1249 Closed phx
172.24.33.213 34412 172.17.4.175 7104 955 1946 Closed phx
172.24.33.213 34987 172.17.4.175 7104 0 0 Establish phx
172.24.8.87 60330 172.17.4.175 2740 0 54 Establish phx
172.24.8.87 60331 172.17.4.175 2741 605 0 Establish phx
172.28.34.138 2068 172.17.4.175 23 0 0 Establish UNK
192.168.7.5 1573 172.17.4.175 6119 0 0 Establish mvs
192.168.7.5 61015 172.17.4.175 6117 242 4 Establish mvs
2002:0:0:1::3306 1027 2002:0:0:2::3304 21 29 221 Establish mvs
You can see the full IPv6 address in MainView for IP, by placing your cursor on the compressed IP address on the tabular view and pressing Enter. The hyperlink will display the full IPv6 address, either in a multi-platform dialog (MPD) or a detailed view for the record.
As you migrate from IPv4 to IPv6, the fields will not change on the MainView for IP views to accommodate the longer IPv6 addresses. However, you can view the partial IPv6 address through the tabular views, or display the full IPv6 address either through the detailed view or from a MainView MPD.