# IP Multicast Routing Next Hop Table

Device > Configure > IP Multicast Routing Next Hop Table

This dialog box provides information about the next hops on outgoing interfaces for routing IP multicast datagrams.

The following information is displayed:

- Group Address (ipMRouteNextHopGroup)
- Source Address (ipMRouteNextHopSource)
- Source Mask (ipMRouteNextHopSourceMask)
- IfIndex (ipMRouteNextHopIfIndex)
- Next Hop Address (ipMRouteNextHopAddress)

The following list specifies buttons in this dialog box, as well as their function:

- Click OK to continue.

- With an entry selected, click Detail to launch the IPM Next Hop Details dialog box.

- With an entry selected, click Monitor to launch the IPM Next Hop Monitor dialog box.

- Click Cancel to close the dialog box.

- Click Refresh to update the contents of the dialog box.

- Click Print to print the contents of the dialog box.

- Click Help to access online help.

Group Address (ipMRouteNextHopGroup)

IP multicast group for which this entry specifies a next hop on an outgoing interface.

Source Address (ipMRouteNextHopSource)

Network address which, when combined with the corresponding value of ipMRouteNextHopSourceMask, identifies the sources for which this entry specifies a next hop on an outgoing interface.

Source Mask (ipMRouteNextHopSourceMask)

Network mask which, when combined with the corresponding value of ipMRouteNextHopSource, identifies the sources for which this entry specifies a next hop on an outgoing interface.

IfIndex (ipMRouteNextHopIfIndex)

ifIndex value of the interface for this next hop's outgoing interface.

Next Hop Address (ipMRouteNextHopAddress)

Address of the next hop specific to this entry. For most interfaces, this is identical to the value of ipMRouteNextHopGroup. NBMA interfaces, however, may have multiple next hop addresses for a single outgoing interface.