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Linux - Networking This forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.

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Old 04-10-2014, 11:59 AM   #1
kikilinux
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Question router tasks in addition to IP forwarding


Hi
when a router receive a packet does it only decrease the TTL and search in routing table for proper forwarding of the packets?
does it need to re-calculate checksum when the TTL is changed?
what is the minimum tasks that a router do ?

best
 
Old 04-10-2014, 03:45 PM   #2
nini09
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If router is pure router, no other functionality, such as firewall. Yes, just decrease TTL, re-calculate checksum and then pump out.
 
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