Huawei Quidway NetEngine80E Configuration Manual page 209

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
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Scenario2: Consider the security upgrade is required in the topology mentioned in
which contains broadcast link with version 1 and version 1 compatible devices.
Figure 3-2 RIP on broadcast link
Router A
interface2 on Router B: (Default version or version 1 compatible)
Send: Version 1
Receive: Version 1
interface1 on Router A: (Version 1)
Send: Version 1
Receive: Version 1
Issue 02 (2014-09-30)
The packet exchange between Router A to Router B is version 2 broadcast with
authentication. Authentication was already configured on both Router A and Router B and
both are allowed to receive version 2 broadcasts, so there will be no impact on packet flow.
Step5: Configure version 2 on interface1 of Router A
interface1 on Router A: (Version 2)
Send: Version 2 multicast with authentication
Receive: Version 2 broadcast and multicast with authentication
interface2 on Router B:
Send: Version 2 broadcast with authentication
Receive: Version 1
Version 2 broadcast and multicast with authentication
The packet exchange from Router A to Router B is version 2 multicast with authentication.
Authentication was already configured on Router B also, so Router B will accept the packets
from Router A. The exchange from Router B to Router A is version 2 broadcast with
authentication. Router A is allowed to receive version 2 broadcast packets even in version
2 mode.
Step6: Configure version 2 on interface2 of Router B
interface1 on Router A: (Version 2)
Send: Version 2 multicast with authentication
Receive: Version 2 broadcast and multicast with authentication
interface2 on Router B: (Version 2)
Send: Version 2 multicast with authentication
Receive: Version 2 broadcast and multicast with authentication
The packet exchange between Router A to Router B is version 2 multicast with
authentication. Authentication was already configured on both Router A and Router B and
both are allowed to receive version 2 multicast, so there will be no impact on packet flow.
NOTE
On network, multicast protocol packets are advisable, since broadcast packets will be reached to
normal hosts also in that network.
interface1 interface2
interface3
Router C
Version 2 broadcast and multicast
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Router B
3 RIP Configuration
Figure 3-2
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