Alcatel-Lucent 7450 System Management Manual page 211

TTL Security Commands
ttl-security
Syntax ttl-security min-ttl-value
no ttl-security
Context config>router>bgp>group
config>router>bgp>group>neighbor
configure>router>ldp>peer-parameters>peer
config>system>login-control>ssh
config>system>login-control>telnet
Description This command configures TTL security parameters for incoming packets. When the feature is
enabled, LDP will accept incoming IP packets from a peer only if the TTL value in the packet is
greater than or equal to the minimum TTL value configured for that peer. Per-peer-queueing must be
enabled in order for TTL protection to operate.
The no form of the command disables TTL security.
Parameters
min-ttl-value — Specify the minimum TTL value for an incoming BGP packet.
ttl-security
Syntax ttl-security min-ttl-value
no ttl-security
Context config>router>ldp>peer-parameters>peer
Description This command configures TTL security parameters for incoming packets. When the feature is
enabled, BGP will accept incoming IP packets from a peer only if the TTL value in the packet is
greater than or equal to the minimum TTL value configured for that peer. Per-peer-queueing must be
enabled in order for TTL protection to operate.
The no form of the command disables TTL security.
Default no ttl-security
Parameters min-ttl-value — Specifies the minimum TTL value for an incoming LDP packet.
ttl-security
Syntax ttl-security min-ttl-value
7450 ESS System Mangement Guide
Values 1 — 255
Values 1 — 255
Security
Page 211