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EXOS: how to disable icmp redirect

EXOS: how to disable icmp redirect

M_Nees
Contributor III
on EOS i disable icmp redirect on a layer 3 interface this way:

code:
conf t
int vlan.0.1000
no ip redirects
exit


How can i achieve that on EXOS ?

Is there no cli command available ?

Attaching a ACL on every L3 interface which discard icmp redirects is technically possible BUT not manageable in the field.

BR
1 ACCEPTED SOLUTION

OscarK
Extreme Employee
* X450G2-24t-G4.1 # disable icmp redirects
Execute the command
ipv6 IPv6 address family
vlan vlan
vlan name
"Default" "Mgmt"

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3 REPLIES 3

M_Nees
Contributor III
code:
disable icmp useredirects


Usage Guidelines

This option only applies to the switch when the switch is not in routing mode.
If the switch has a route to a destination network, the switch uses that router as the gateway to forward
the packets to. If that router knows about a better route to the destination, and the next hop is in the
same subnet as the originating router, the second router sends an ICMP redirect message to the frst
router. If ICMP useredirects is disabled, the switch disregards these messages and continues to send the
packets to the second router.

M_Nees
Contributor III
Thanks OscarK!

CLI reference tell me this important additional command:

code:
disable icmp useredirects


Disables the modifcation of route table information when an ICMP redirect message is received.

OscarK
Extreme Employee
* X450G2-24t-G4.1 # disable icmp redirects
Execute the command
ipv6 IPv6 address family
vlan vlan
vlan name
"Default" "Mgmt"
GTM-P2G8KFN